Articles | Volume 37, issue 2
https://doi.org/10.5194/jm-37-403-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-37-403-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Sep 2018
Research article |
| 07 Sep 2018
| 07 Sep 2018
Assessing proxy signatures of temperature, salinity, and hypoxia in the Baltic Sea through foraminifera-based geochemistry and faunal assemblages
Jeroen Groeneveld
CORRESPONDING AUTHOR
Center for Marine Environmental Sciences (MARUM), University of
Bremen, Klagenfurter Strasse 2–4, 28359 Bremen, Germany
Department of Geology, Lund University, Sölvegatan 12, 223 62
Lund, Sweden
Helena L. Filipsson
Department of Geology, Lund University, Sölvegatan 12, 223 62
Lund, Sweden
William E. N. Austin
School of Geography and Sustainable Development, University of St.
Andrews, North Street, St. Andrews, KY16 9AL, UK
Scottish Association for Marine Science, Scottish Marine Institute,
Oban, PA37 1AQ, UK
Kate Darling
School of Geography and Sustainable Development, University of St.
Andrews, North Street, St. Andrews, KY16 9AL, UK
School of Geosciences, University of Edinburgh, James Hutton Road,
Edinburgh, EH9 3FE, UK
David McCarthy
School of Geography and Sustainable Development, University of St.
Andrews, North Street, St. Andrews, KY16 9AL, UK
Nadine B. Quintana Krupinski
Department of Geology, Lund University, Sölvegatan 12, 223 62
Lund, Sweden
Clare Bird
School of Geosciences, University of Edinburgh, James Hutton Road,
Edinburgh, EH9 3FE, UK
Biological and Environmental Sciences, University of Stirling,
Stirling, FK9 4LA, UK
Magali Schweizer
School of Geosciences, University of Edinburgh, James Hutton Road,
Edinburgh, EH9 3FE, UK
LPG-BIAF UMR CNRS 6112, University of Angers, 2 bd Lavoisier, 49045
Angers CEDEX 01, France
Related authors
Babette Hoogakker, Catherine Davis, Yi Wang, Stepanie Kusch, Katrina Nilsson-Kerr, Dalton Hardisty, Allison Jacobel, Dharma Reyes Macaya, Nicolaas Glock, Sha Ni, Julio Sepúlveda, Abby Ren, Alexandra Auderset, Anya Hess, Katrina Meissner, Jorge Cardich, Robert Anderson, Christine Barras, Chandranath Basak, Harold Bradbury, Inda Brinkmann, Alexis Castillo, Madelyn Cook, Kassandra Costa, Constance Choquel, Paula Diz, Jonas Donnenfield, Felix Elling, Zeynep Erdem, Helena Filipsson, Sebastian Garrido, Julia Gottschalk, Anjaly Govindankutty Menon, Jeroen Groeneveld, Christian Hallman, Ingrid Hendy, Rick Hennekam, Wanyi Lu, Jean Lynch-Stieglitz, Lelia Matos, Alfredo Martínez-García, Giulia Molina, Práxedes Muñoz, Simone Moretti, Jennifer Morford, Sophie Nuber, Svetlana Radionovskaya, Morgan Raven, Christopher Somes, Anja Studer, Kazuyo Tachikawa, Raúl Tapia, Martin Tetard, Tyler Vollmer, Shuzhuang Wu, Yan Zhang, Xin-Yuan Zheng, and Yuxin Zhou
EGUsphere, https://doi.org/10.5194/egusphere-2023-2981, https://doi.org/10.5194/egusphere-2023-2981, 2024
Short summary
Short summary
Paleo-oxygen proxies can extend current records, bound pre-anthropogenic baselines, provide datasets necessary to test climate models under different boundary conditions, and ultimately understand how ocean oxygenation responds on longer timescales. Here we summarize current proxies used for the reconstruction of Cenozoic seawater oxygen levels. This includes an overview of the proxy's history, how it works, resources required, limitations, and future recommendations.
Raúl Tapia, Sze Ling Ho, Hui-Yu Wang, Jeroen Groeneveld, and Mahyar Mohtadi
Biogeosciences, 19, 3185–3208, https://doi.org/10.5194/bg-19-3185-2022, https://doi.org/10.5194/bg-19-3185-2022, 2022
Short summary
Short summary
We report census counts of planktic foraminifera in depth-stratified plankton net samples off Indonesia. Our results show that the vertical distribution of foraminifera species routinely used in paleoceanographic reconstructions varies in hydrographically distinct regions, likely in response to food availability. Consequently, the thermal gradient based on mixed layer and thermocline dwellers also differs for these regions, suggesting potential implications for paleoceanographic reconstructions.
Lukas Jonkers, Geert-Jan A. Brummer, Julie Meilland, Jeroen Groeneveld, and Michal Kucera
Clim. Past, 18, 89–101, https://doi.org/10.5194/cp-18-89-2022, https://doi.org/10.5194/cp-18-89-2022, 2022
Short summary
Short summary
The variability in the geochemistry among individual foraminifera is used to reconstruct seasonal to interannual climate variability. This method requires that each foraminifera shell accurately records environmental conditions, which we test here using a sediment trap time series. Even in the absence of environmental variability, planktonic foraminifera display variability in their stable isotope ratios that needs to be considered in the interpretation of individual foraminifera data.
Andrew M. Dolman, Torben Kunz, Jeroen Groeneveld, and Thomas Laepple
Clim. Past, 17, 825–841, https://doi.org/10.5194/cp-17-825-2021, https://doi.org/10.5194/cp-17-825-2021, 2021
Short summary
Short summary
Uncertainties in climate proxy records are temporally autocorrelated. By deriving expressions for the power spectra of errors in proxy records, we can estimate appropriate uncertainties for any timescale, for example, for temporally smoothed records or for time slices. Here we outline and demonstrate this approach for climate proxies recovered from marine sediment cores.
Annette Hahn, Enno Schefuß, Jeroen Groeneveld, Charlotte Miller, and Matthias Zabel
Clim. Past, 17, 345–360, https://doi.org/10.5194/cp-17-345-2021, https://doi.org/10.5194/cp-17-345-2021, 2021
Ulrich Kotthoff, Jeroen Groeneveld, Jeanine L. Ash, Anne-Sophie Fanget, Nadine Quintana Krupinski, Odile Peyron, Anna Stepanova, Jonathan Warnock, Niels A. G. M. Van Helmond, Benjamin H. Passey, Ole Rønø Clausen, Ole Bennike, Elinor Andrén, Wojciech Granoszewski, Thomas Andrén, Helena L. Filipsson, Marit-Solveig Seidenkrantz, Caroline P. Slomp, and Thorsten Bauersachs
Biogeosciences, 14, 5607–5632, https://doi.org/10.5194/bg-14-5607-2017, https://doi.org/10.5194/bg-14-5607-2017, 2017
Short summary
Short summary
We present reconstructions of paleotemperature, paleosalinity, and paleoecology from the Little Belt (Site M0059) over the past ~ 8000 years and evaluate the applicability of numerous proxies. Conditions were lacustrine until ~ 7400 cal yr BP. A transition to brackish–marine conditions then occurred within ~ 200 years. Salinity proxies rarely allowed quantitative estimates but revealed congruent results, while quantitative temperature reconstructions differed depending on the proxies used.
Philipp M. Munz, Stephan Steinke, Anna Böll, Andreas Lückge, Jeroen Groeneveld, Michal Kucera, and Hartmut Schulz
Clim. Past, 13, 491–509, https://doi.org/10.5194/cp-13-491-2017, https://doi.org/10.5194/cp-13-491-2017, 2017
Short summary
Short summary
We present the results of several independent proxies of summer SST and upwelling SST from the Oman margin indicative of monsoon strength during the early Holocene. In combination with indices of carbonate preservation and bottom water redox conditions, we demonstrate that a persistent solar influence was modulating summer monsoon intensity. Furthermore, bottom water conditions are linked to atmospheric forcing, rather than changes of intermediate water masses.
C. L. McKay, J. Groeneveld, H. L. Filipsson, D. Gallego-Torres, M. J. Whitehouse, T. Toyofuku, and O.E. Romero
Biogeosciences, 12, 5415–5428, https://doi.org/10.5194/bg-12-5415-2015, https://doi.org/10.5194/bg-12-5415-2015, 2015
Short summary
Short summary
We highlight the proxy potential of foraminiferal Mn/Ca determined by secondary ion mass spectrometry and flow-through inductively coupled plasma optical emission spectroscopy for recording changes in bottom-water oxygen conditions. Comparisons with Mn sediment bulk measurements from the same sediment core largely agree with the results. High foraminiferal Mn/Ca occurs in samples from times of high productivity export and corresponds with the benthic foraminiferal faunal composition.
J. Groeneveld and H. L. Filipsson
Biogeosciences, 10, 5125–5138, https://doi.org/10.5194/bg-10-5125-2013, https://doi.org/10.5194/bg-10-5125-2013, 2013
Alex Houston, Mark H. Garnett, Jo Smith, and William E. N. Austin
EGUsphere, https://doi.org/10.5194/egusphere-2024-3281, https://doi.org/10.5194/egusphere-2024-3281, 2024
Short summary
Short summary
The organic carbon stored in saltmarsh soils can be up to 15,000 years old. We found that less energy is required to decompose young carbon than old carbon, i.e., young carbon tends to be more labile. We show that the labile carbon can still be up to 2,000 years old, implying that even old carbon in saltmarsh soils may contribute to greenhouse gas emissions. Protecting saltmarshes from degradation may help conserve these stores of old, labile organic carbon and hence limit CO2 emissions.
Flor Vermassen, Clare Bird, Tirza M. Weitkamp, Kate F. Darling, Hanna Farnelid, Céline Heuzé, Allison Y. Hsiang, Salar Karam, Christian Stranne, Marcus Sundbom, and Helen K. Coxall
EGUsphere, https://doi.org/10.5194/egusphere-2024-1091, https://doi.org/10.5194/egusphere-2024-1091, 2024
Short summary
Short summary
We provide the first systematic survey of planktonic foraminifera in the high Arctic Ocean. Our results describe the abundance and species composition under summer sea-ice. They indicate that the polar specialist N. pachyderma is the only species present, with subpolar species absent. The dataset will be a valuable reference for continued monitoring of the state of planktonic foraminifera communities as they respond to the ongoing sea-ice decline and the ‘Atlantification’ of the Arctic Ocean.
Clare Bird, Kate F. Darling, Rabecca Thiessen, and Anna J. Pieńkowski
EGUsphere, https://doi.org/10.5194/egusphere-2024-497, https://doi.org/10.5194/egusphere-2024-497, 2024
Short summary
Short summary
The polar planktonic foraminifer N. pachyderma eats bacteria and diatoms. Unlike other planktonic species, it also keeps the diatom chloroplasts (photosynthesising organelles) inside its cell. In benthic foraminifera this is known as kleptoplasty, and the roles of these stolen chloroplasts are diverse. Their role in N. pachyderma needs to be investigated to find out if stored chloroplasts enable N. pachyderma to live in polar waters and under the ice where no other planktonic species survive.
William Hiles, Lucy C. Miller, Craig Smeaton, and William E. N. Austin
Biogeosciences, 21, 929–948, https://doi.org/10.5194/bg-21-929-2024, https://doi.org/10.5194/bg-21-929-2024, 2024
Short summary
Short summary
Saltmarsh soils may help to limit the rate of climate change by storing carbon. To understand their impacts, they must be accurately mapped. We use drone data to estimate the size of three saltmarshes in NE Scotland. We find that drone imagery, combined with tidal data, can reliably inform our understanding of saltmarsh size. When compared with previous work using vegetation communities, we find that our most reliable new estimates of stored carbon are 15–20 % smaller than previously estimated.
Babette Hoogakker, Catherine Davis, Yi Wang, Stepanie Kusch, Katrina Nilsson-Kerr, Dalton Hardisty, Allison Jacobel, Dharma Reyes Macaya, Nicolaas Glock, Sha Ni, Julio Sepúlveda, Abby Ren, Alexandra Auderset, Anya Hess, Katrina Meissner, Jorge Cardich, Robert Anderson, Christine Barras, Chandranath Basak, Harold Bradbury, Inda Brinkmann, Alexis Castillo, Madelyn Cook, Kassandra Costa, Constance Choquel, Paula Diz, Jonas Donnenfield, Felix Elling, Zeynep Erdem, Helena Filipsson, Sebastian Garrido, Julia Gottschalk, Anjaly Govindankutty Menon, Jeroen Groeneveld, Christian Hallman, Ingrid Hendy, Rick Hennekam, Wanyi Lu, Jean Lynch-Stieglitz, Lelia Matos, Alfredo Martínez-García, Giulia Molina, Práxedes Muñoz, Simone Moretti, Jennifer Morford, Sophie Nuber, Svetlana Radionovskaya, Morgan Raven, Christopher Somes, Anja Studer, Kazuyo Tachikawa, Raúl Tapia, Martin Tetard, Tyler Vollmer, Shuzhuang Wu, Yan Zhang, Xin-Yuan Zheng, and Yuxin Zhou
EGUsphere, https://doi.org/10.5194/egusphere-2023-2981, https://doi.org/10.5194/egusphere-2023-2981, 2024
Short summary
Short summary
Paleo-oxygen proxies can extend current records, bound pre-anthropogenic baselines, provide datasets necessary to test climate models under different boundary conditions, and ultimately understand how ocean oxygenation responds on longer timescales. Here we summarize current proxies used for the reconstruction of Cenozoic seawater oxygen levels. This includes an overview of the proxy's history, how it works, resources required, limitations, and future recommendations.
K. Mareike Paul, Martijn Hermans, Sami A. Jokinen, Inda Brinkmann, Helena L. Filipsson, and Tom Jilbert
Biogeosciences, 20, 5003–5028, https://doi.org/10.5194/bg-20-5003-2023, https://doi.org/10.5194/bg-20-5003-2023, 2023
Short summary
Short summary
Seawater naturally contains trace metals such as Mo and U, which accumulate under low oxygen conditions on the seafloor. Previous studies have used sediment Mo and U contents as an archive of changing oxygen concentrations in coastal waters. Here we show that in fjords the use of Mo and U for this purpose may be impaired by additional processes. Our findings have implications for the reliable use of Mo and U to reconstruct oxygen changes in fjords.
Christiane Schmidt, Emmanuelle Geslin, Joan M. Bernhard, Charlotte LeKieffre, Mette Marianne Svenning, Helene Roberge, Magali Schweizer, and Giuliana Panieri
Biogeosciences, 19, 3897–3909, https://doi.org/10.5194/bg-19-3897-2022, https://doi.org/10.5194/bg-19-3897-2022, 2022
Short summary
Short summary
This study is the first to show non-selective deposit feeding in the foraminifera Nonionella labradorica and the possible uptake of methanotrophic bacteria. We carried out a feeding experiment with a marine methanotroph to examine the ultrastructure of the cell and degradation vacuoles using transmission electron microscopy (TEM). The results revealed three putative methanotrophs at the outside of the cell/test, which could be taken up via non-targeted grazing in seeps or our experiment.
Raúl Tapia, Sze Ling Ho, Hui-Yu Wang, Jeroen Groeneveld, and Mahyar Mohtadi
Biogeosciences, 19, 3185–3208, https://doi.org/10.5194/bg-19-3185-2022, https://doi.org/10.5194/bg-19-3185-2022, 2022
Short summary
Short summary
We report census counts of planktic foraminifera in depth-stratified plankton net samples off Indonesia. Our results show that the vertical distribution of foraminifera species routinely used in paleoceanographic reconstructions varies in hydrographically distinct regions, likely in response to food availability. Consequently, the thermal gradient based on mixed layer and thermocline dwellers also differs for these regions, suggesting potential implications for paleoceanographic reconstructions.
Inda Brinkmann, Christine Barras, Tom Jilbert, Tomas Næraa, K. Mareike Paul, Magali Schweizer, and Helena L. Filipsson
Biogeosciences, 19, 2523–2535, https://doi.org/10.5194/bg-19-2523-2022, https://doi.org/10.5194/bg-19-2523-2022, 2022
Short summary
Short summary
The concentration of the trace metal barium (Ba) in coastal seawater is a function of continental input, such as riverine discharge. Our geochemical records of the severely hot and dry year 2018, and following wet year 2019, reveal that prolonged drought imprints with exceptionally low Ba concentrations in benthic foraminiferal calcium carbonates of coastal sediments. This highlights the potential of benthic Ba / Ca to trace past climate extremes and variability in coastal marine records.
Lukas Jonkers, Geert-Jan A. Brummer, Julie Meilland, Jeroen Groeneveld, and Michal Kucera
Clim. Past, 18, 89–101, https://doi.org/10.5194/cp-18-89-2022, https://doi.org/10.5194/cp-18-89-2022, 2022
Short summary
Short summary
The variability in the geochemistry among individual foraminifera is used to reconstruct seasonal to interannual climate variability. This method requires that each foraminifera shell accurately records environmental conditions, which we test here using a sediment trap time series. Even in the absence of environmental variability, planktonic foraminifera display variability in their stable isotope ratios that needs to be considered in the interpretation of individual foraminifera data.
Julien Richirt, Magali Schweizer, Aurélia Mouret, Sophie Quinchard, Salha A. Saad, Vincent M. P. Bouchet, Christopher M. Wade, and Frans J. Jorissen
J. Micropalaeontol., 40, 61–74, https://doi.org/10.5194/jm-40-61-2021, https://doi.org/10.5194/jm-40-61-2021, 2021
Short summary
Short summary
The study presents (1) a validation of a method which was previously published allowing us to recognize different Ammonia phylotypes (T1, T2 and T6) based only on their morphology and (2) a refined biogeographical distribution presented here supporting the putatively invasive character of phylotype T6. Results suggest that phylotype T6 is currently spreading out and supplanting autochthonous phylotypes T1 and T2 along the coastlines of the British Isles and northern France.
Andrew M. Dolman, Torben Kunz, Jeroen Groeneveld, and Thomas Laepple
Clim. Past, 17, 825–841, https://doi.org/10.5194/cp-17-825-2021, https://doi.org/10.5194/cp-17-825-2021, 2021
Short summary
Short summary
Uncertainties in climate proxy records are temporally autocorrelated. By deriving expressions for the power spectra of errors in proxy records, we can estimate appropriate uncertainties for any timescale, for example, for temporally smoothed records or for time slices. Here we outline and demonstrate this approach for climate proxies recovered from marine sediment cores.
Annette Hahn, Enno Schefuß, Jeroen Groeneveld, Charlotte Miller, and Matthias Zabel
Clim. Past, 17, 345–360, https://doi.org/10.5194/cp-17-345-2021, https://doi.org/10.5194/cp-17-345-2021, 2021
Constance Choquel, Emmanuelle Geslin, Edouard Metzger, Helena L. Filipsson, Nils Risgaard-Petersen, Patrick Launeau, Manuel Giraud, Thierry Jauffrais, Bruno Jesus, and Aurélia Mouret
Biogeosciences, 18, 327–341, https://doi.org/10.5194/bg-18-327-2021, https://doi.org/10.5194/bg-18-327-2021, 2021
Short summary
Short summary
Marine microorganisms such as foraminifera are able to live temporarily without oxygen in sediments. In a Swedish fjord subjected to seasonal oxygen scarcity, a change in fauna linked to the decrease in oxygen and the increase in an invasive species was shown. The invasive species respire nitrate until 100 % of the nitrate porewater in the sediment and could be a major contributor to nitrogen balance in oxic coastal ecosystems. But prolonged hypoxia creates unfavorable conditions to survive.
Julien Richirt, Bettina Riedel, Aurélia Mouret, Magali Schweizer, Dewi Langlet, Dorina Seitaj, Filip J. R. Meysman, Caroline P. Slomp, and Frans J. Jorissen
Biogeosciences, 17, 1415–1435, https://doi.org/10.5194/bg-17-1415-2020, https://doi.org/10.5194/bg-17-1415-2020, 2020
Short summary
Short summary
The paper presents the response of benthic foraminiferal communities to seasonal absence of oxygen coupled with the presence of hydrogen sulfide, considered very harmful for several living organisms.
Our results suggest that the foraminiferal community mainly responds as a function of the duration of the adverse conditions.
This knowledge is especially useful to better understand the ecology of benthic foraminifera but also in the context of palaeoceanographic interpretations.
Elena Lo Giudice Cappelli, Jessica Louise Clarke, Craig Smeaton, Keith Davidson, and William Edward Newns Austin
Biogeosciences, 16, 4183–4199, https://doi.org/10.5194/bg-16-4183-2019, https://doi.org/10.5194/bg-16-4183-2019, 2019
Short summary
Short summary
Fjords are known sinks of organic carbon (OC); however, little is known about the long-term fate of the OC stored in these sediments. The reason for this knowledge gap is the post-depositional degradation of OC. This study uses benthic foraminifera (microorganisms with calcite shells) to discriminate between post-depositional OC degradation and actual OC burial and accumulation in fjordic sediments, as foraminifera would only preserve the latter information in their assemblage composition.
Laurie M. Charrieau, Karl Ljung, Frederik Schenk, Ute Daewel, Emma Kritzberg, and Helena L. Filipsson
Biogeosciences, 16, 3835–3852, https://doi.org/10.5194/bg-16-3835-2019, https://doi.org/10.5194/bg-16-3835-2019, 2019
Short summary
Short summary
We reconstructed environmental changes in the Öresund during the last 200 years, using foraminifera (microfossils), sediment, and climate data. Five zones were identified, reflecting oxygen, salinity, food content, and pollution levels for each period. The largest changes occurred ~ 1950, towards stronger currents. The foraminifera responded quickly (< 10 years) to the changes. Moreover, they did not rebound when the system returned to the previous pattern, but displayed a new equilibrium state.
Craig Smeaton, Xingqian Cui, Thomas S. Bianchi, Alix G. Cage, John A. Howe, and William E. N. Austin
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-163, https://doi.org/10.5194/bg-2019-163, 2019
Publication in BG not foreseen
Short summary
Short summary
The sediments in fjords are known to be important sites for locking carbon away for long periods of time (thousands of years) but the processes by which climate and human activity influence the development of these coastal carbon stores is poorly understood. A record of long-term sediment burial from a Scottish fjord allows us to investigate the role that humans and climate has played. The results indicate that both climate and humans have an impact on terrestrial ecosystems.
Irina Polovodova Asteman, Helena L. Filipsson, and Kjell Nordberg
Clim. Past, 14, 1097–1118, https://doi.org/10.5194/cp-14-1097-2018, https://doi.org/10.5194/cp-14-1097-2018, 2018
Short summary
Short summary
We present 2500 years of winter temperatures, using a sediment record from Gullmar Fjord analyzed for stable oxygen isotopes in benthic foraminifera. Reconstructed temperatures are within the annual temperature variability recorded in the fjord since the 1890s. Results show the warm Roman and Medieval periods and the cold Little Ice Age. The record also shows the recent warming, which does not stand out in the 2500-year perspective and is comparable to the Roman and Medieval climate anomalies.
Laurie M. Charrieau, Lene Bryngemark, Ingemar Hansson, and Helena L. Filipsson
J. Micropalaeontol., 37, 191–194, https://doi.org/10.5194/jm-37-191-2018, https://doi.org/10.5194/jm-37-191-2018, 2018
Short summary
Short summary
Splitting samples into smaller subsamples is often necessary in micropalaeontological studies. Indeed, the general high abundance of microfossils – which makes them excellent tools to reconstruct past environments – also results in very time-consuming faunal analyses. Here we present an improved and cost-effective wet splitter for micropalaeontological samples aimed to reduce picking time, while keeping information loss to a minimum.
Craig Smeaton, William E. N. Austin, Althea L. Davies, Agnes Baltzer, John A. Howe, and John M. Baxter
Biogeosciences, 14, 5663–5674, https://doi.org/10.5194/bg-14-5663-2017, https://doi.org/10.5194/bg-14-5663-2017, 2017
Short summary
Short summary
Fjord sediments are recognised as hotspots for the burial and long-term storage of carbon. In this study, we use the Scottish fjords as a natural laboratory. Using geophysical and geochemical analysis in combination with upscaling techniques, we have generated the first full national sedimentary C inventory for a fjordic system. The results indicate that the Scottish fjords on a like-for-like basis are more effective as C stores than their terrestrial counterparts, including Scottish peatlands.
Ulrich Kotthoff, Jeroen Groeneveld, Jeanine L. Ash, Anne-Sophie Fanget, Nadine Quintana Krupinski, Odile Peyron, Anna Stepanova, Jonathan Warnock, Niels A. G. M. Van Helmond, Benjamin H. Passey, Ole Rønø Clausen, Ole Bennike, Elinor Andrén, Wojciech Granoszewski, Thomas Andrén, Helena L. Filipsson, Marit-Solveig Seidenkrantz, Caroline P. Slomp, and Thorsten Bauersachs
Biogeosciences, 14, 5607–5632, https://doi.org/10.5194/bg-14-5607-2017, https://doi.org/10.5194/bg-14-5607-2017, 2017
Short summary
Short summary
We present reconstructions of paleotemperature, paleosalinity, and paleoecology from the Little Belt (Site M0059) over the past ~ 8000 years and evaluate the applicability of numerous proxies. Conditions were lacustrine until ~ 7400 cal yr BP. A transition to brackish–marine conditions then occurred within ~ 200 years. Salinity proxies rarely allowed quantitative estimates but revealed congruent results, while quantitative temperature reconstructions differed depending on the proxies used.
Raphaël Morard, Franck Lejzerowicz, Kate F. Darling, Béatrice Lecroq-Bennet, Mikkel Winther Pedersen, Ludovic Orlando, Jan Pawlowski, Stefan Mulitza, Colomban de Vargas, and Michal Kucera
Biogeosciences, 14, 2741–2754, https://doi.org/10.5194/bg-14-2741-2017, https://doi.org/10.5194/bg-14-2741-2017, 2017
Short summary
Short summary
The exploitation of deep-sea sedimentary archive relies on the recovery of mineralized skeletons of pelagic organisms. Planktonic groups leaving preserved remains represent only a fraction of the total marine diversity. Environmental DNA left by non-fossil organisms is a promising source of information for paleo-reconstructions. Here we show how planktonic-derived environmental DNA preserves ecological structure of planktonic communities. We use planktonic foraminifera as a case study.
Philipp M. Munz, Stephan Steinke, Anna Böll, Andreas Lückge, Jeroen Groeneveld, Michal Kucera, and Hartmut Schulz
Clim. Past, 13, 491–509, https://doi.org/10.5194/cp-13-491-2017, https://doi.org/10.5194/cp-13-491-2017, 2017
Short summary
Short summary
We present the results of several independent proxies of summer SST and upwelling SST from the Oman margin indicative of monsoon strength during the early Holocene. In combination with indices of carbonate preservation and bottom water redox conditions, we demonstrate that a persistent solar influence was modulating summer monsoon intensity. Furthermore, bottom water conditions are linked to atmospheric forcing, rather than changes of intermediate water masses.
Clare Bird, Kate F. Darling, Ann D. Russell, Catherine V. Davis, Jennifer Fehrenbacher, Andrew Free, Michael Wyman, and Bryne T. Ngwenya
Biogeosciences, 14, 901–920, https://doi.org/10.5194/bg-14-901-2017, https://doi.org/10.5194/bg-14-901-2017, 2017
Short summary
Short summary
Accurate ecological data on planktic foraminifera (calcifying microbes that play an important role in the carbon cycle) are important for modelling their response to climate change. We studied the species G. bulloides. A lack of algal symbionts and unusual shell chemistry suggest a different life history compared to other spinose species. We demonstrate that G. bulloides hosts cyanobacterial endobionts. This has implications for modelling this species and for understanding its shell chemistry.
Craig Smeaton, William E. N. Austin, Althea L. Davies, Agnès Baltzer, Richard E. Abell, and John A. Howe
Biogeosciences, 13, 5771–5787, https://doi.org/10.5194/bg-13-5771-2016, https://doi.org/10.5194/bg-13-5771-2016, 2016
Short summary
Short summary
Quantifying the carbon (C) stored within coastal sediments is key to improving our knowledge of the local and global C cycle. Here we present a new methodology to calculate the quantity of C held within coastal sediments. Through the application of this method to a mid-latitude fjord we have shown that a substantial quantity of C is held within these sediments. Additionally, we discovered that these sediments are more effective long-term stores of C than their terrestrial equivalents.
Wenxin Ning, Jing Tang, and Helena L. Filipsson
Earth Surf. Dynam., 4, 773–780, https://doi.org/10.5194/esurf-4-773-2016, https://doi.org/10.5194/esurf-4-773-2016, 2016
J. M. Bernhard, W. G. Phalen, A. McIntyre-Wressnig, F. Mezzo, J. C. Wit, M. Jeglinski, and H. L. Filipsson
Biogeosciences, 12, 5515–5522, https://doi.org/10.5194/bg-12-5515-2015, https://doi.org/10.5194/bg-12-5515-2015, 2015
Short summary
Short summary
We present an innovative method using osmotic pumps and the fluorescent marker calcein to help identify where and when calcareous bottom-dwelling organisms mineralize in sediments. These organisms, and their geochemical signatures in their carbonate, are the ocean’s storytellers helping us understand past marine conditions. For many species, the timing and location of their calcite growth is not known. Knowing this will enable us to reconstruct past marine environments with greater accuracy.
C. L. McKay, J. Groeneveld, H. L. Filipsson, D. Gallego-Torres, M. J. Whitehouse, T. Toyofuku, and O.E. Romero
Biogeosciences, 12, 5415–5428, https://doi.org/10.5194/bg-12-5415-2015, https://doi.org/10.5194/bg-12-5415-2015, 2015
Short summary
Short summary
We highlight the proxy potential of foraminiferal Mn/Ca determined by secondary ion mass spectrometry and flow-through inductively coupled plasma optical emission spectroscopy for recording changes in bottom-water oxygen conditions. Comparisons with Mn sediment bulk measurements from the same sediment core largely agree with the results. High foraminiferal Mn/Ca occurs in samples from times of high productivity export and corresponds with the benthic foraminiferal faunal composition.
M. P. Nardelli, C. Barras, E. Metzger, A. Mouret, H. L. Filipsson, F. Jorissen, and E. Geslin
Biogeosciences, 11, 4029–4038, https://doi.org/10.5194/bg-11-4029-2014, https://doi.org/10.5194/bg-11-4029-2014, 2014
J. Groeneveld and H. L. Filipsson
Biogeosciences, 10, 5125–5138, https://doi.org/10.5194/bg-10-5125-2013, https://doi.org/10.5194/bg-10-5125-2013, 2013
B. C. Lougheed, H. L. Filipsson, and I. Snowball
Clim. Past, 9, 1015–1028, https://doi.org/10.5194/cp-9-1015-2013, https://doi.org/10.5194/cp-9-1015-2013, 2013
I. Polovodova Asteman, K. Nordberg, and H. L. Filipsson
Biogeosciences, 10, 1275–1290, https://doi.org/10.5194/bg-10-1275-2013, https://doi.org/10.5194/bg-10-1275-2013, 2013
Related subject area
Benthic foraminifera
Miocene Climatic Optimum and Middle Miocene Climate Transition: a foraminiferal record from the central Ross Sea, Antarctica
Distribution of two notodendrodid foraminiferal congeners in McMurdo Sound, Antarctica: an example of extreme regional endemism?
Benthic foraminifers in coastal habitats of Ras Mohamed Nature Reserve, southern Sinai, Red Sea, Egypt
Late Miocene to Early Pliocene benthic foraminifera from the Tasman Sea (International Ocean Discovery Program Site U1506)
Triassic and Jurassic possible planktonic foraminifera and the assemblages recovered from the Ogrodzieniec Glauconitic Marls Formation (uppermost Callovian and lowermost Oxfordian, Jurassic) of the Polish Basin
Benthic foraminiferal patchiness – revisited
Agglutinated foraminifera from the Turonian–Coniacian boundary interval in Europe – paleoenvironmental remarks and stratigraphy
Meghalayan environmental evolution of the Thapsus coast (Tunisia) as inferred from sedimentological and micropaleontological proxies
Biometry and taxonomy of Adriatic Ammonia species from Bellaria–Igea Marina (Italy)
Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition
Comparative analysis of six common foraminiferal species of the genera Cassidulina, Paracassidulina, and Islandiella from the Arctic–North Atlantic domain
Microfossil assemblages and geochemistry for interpreting the incidence of the Jenkyns Event (early Toarcian) in the south-eastern Iberian Palaeomargin (External Subbetic, SE Spain)
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey
Latest Oligocene to earliest Pliocene deep-sea benthic foraminifera from Ocean Drilling Program (ODP) Sites 752, 1168 and 1139, southern Indian Ocean
Benthic foraminifera indicate Glacial North Pacific Intermediate Water and reduced primary productivity over Bowers Ridge, Bering Sea, since the Mid-Brunhes Transition
Reconstructing the Christian Malford ecosystem in the Oxford Clay Formation (Callovian, Jurassic) of Wiltshire: exceptional preservation, taphonomy, burial and compaction
Benthic foraminiferal assemblages and test accumulation in coastal microhabitats on San Salvador, Bahamas
New species of Mesozoic benthic foraminifera from the former British Petroleum micropalaeontology collection
Monitoring benthic foraminiferal dynamics at Bottsand coastal lagoon (western Baltic Sea)
Paleocene orthophragminids from the Lakadong Limestone, Mawmluh Quarry section, Meghalaya (Shillong, NE India): implications for the regional geology and paleobiogeography
Larger foraminifera of the Devil's Den and Blue Hole sinkholes, Florida
Assessing the composition of fragmented agglutinated foraminiferal assemblages in ancient sediments: comparison of counting and area-based methods in Famennian samples (Late Devonian)
Samantha E. Bombard, R. Mark Leckie, Imogen M. Browne, Amelia E. Shevenell, Robert M. McKay, David M. Harwood, and the IODP Expedition 374 Scientists
J. Micropalaeontol., 43, 383–421, https://doi.org/10.5194/jm-43-383-2024, https://doi.org/10.5194/jm-43-383-2024, 2024
Short summary
Short summary
The Ross Sea record of the Miocene Climatic Optimum (~16.9–14.7 Ma) and the Middle Miocene Climate Transition (~14.7–13.8 Ma) can provide critical insights into the Antarctic ocean–cryosphere system during an ancient time of extreme warmth and subsequent cooling. Benthic foraminifera inform us about water masses, currents, and glacial conditions in the Ross Sea, and planktic foram invaders can inform us of when warm waters melted the Antarctic Ice Sheet in the past.
Andrea Habura, Stephen P. Alexander, Steven D. Hanes, Andrew J. Gooday, Jan Pawlowski, and Samuel S. Bowser
J. Micropalaeontol., 43, 337–347, https://doi.org/10.5194/jm-43-337-2024, https://doi.org/10.5194/jm-43-337-2024, 2024
Short summary
Short summary
Two species of giant, single-celled "trees” inhabit the seafloor in McMurdo Sound, Antarctica. These unicellular creatures are large enough to be seen and counted by scuba divers. We found that one of the tree species is widely spread, whereas the other inhabits only a small region on the western side of the sound. These types of unicellular trees have not been found elsewhere in the world ocean and are particularly vulnerable to the effects of climate change.
Ahmed M. BadrElDin and Pamela Hallock
J. Micropalaeontol., 43, 239–267, https://doi.org/10.5194/jm-43-239-2024, https://doi.org/10.5194/jm-43-239-2024, 2024
Short summary
Short summary
The Red Sea hosts exceptionally diverse marine environments despite elevated salinities. Distributions of benthic foraminifers were used to assess the ecological status of coral reef environments in the Ras Mohamed Nature Reserve, south Sinai. Sediment samples collected in mangrove, shallow-lagoon, and coral reef habitats yielded 95 foraminiferal species. Six species, five hosting algal symbionts, made up ~70 % of the specimens examined, indicating water quality suitable for reef accretion.
Maria Elena Gastaldello, Claudia Agnini, and Laia Alegret
J. Micropalaeontol., 43, 1–35, https://doi.org/10.5194/jm-43-1-2024, https://doi.org/10.5194/jm-43-1-2024, 2024
Short summary
Short summary
This paper examines benthic foraminifera, single-celled organisms, at Integrated Ocean Drilling Program Site U1506 in the Tasman Sea from the Late Miocene to the Early Pliocene (between 7.4 to 4.5 million years ago). We described and illustrated the 36 most common species; analysed the past ocean depth of the site; and investigated the environmental conditions at the seafloor during the Biogenic Bloom phenomenon, a global phase of high marine primary productivity.
Malcolm B. Hart, Holger Gebhardt, Eiichi Setoyama, Christopher W. Smart, and Jarosław Tyszka
J. Micropalaeontol., 42, 277–290, https://doi.org/10.5194/jm-42-277-2023, https://doi.org/10.5194/jm-42-277-2023, 2023
Short summary
Short summary
<p>In the 1960s-1970s some species of Triassic foraminifera were described as having a planktic mode of life. This was questioned and Malcolm Hart studied the material in Vienna, taking some to London for SEM imaging. Samples collected from Poland are compared to these images and the suggested planktic mode of life discussed. Foraminifera collected in Ogrodzieniec are glauconitic steinkerns with no test material present and none of the diagnostic features needed to determine "new" species.</p>
Joachim Schönfeld, Nicolaas Glock, Irina Polovodova Asteman, Alexandra-Sophie Roy, Marié Warren, Julia Weissenbach, and Julia Wukovits
J. Micropalaeontol., 42, 171–192, https://doi.org/10.5194/jm-42-171-2023, https://doi.org/10.5194/jm-42-171-2023, 2023
Short summary
Short summary
Benthic organisms show aggregated distributions due to the spatial heterogeneity of niches or food. We analysed the distribution of Globobulimina turgida in the Gullmar Fjord, Sweden, with a data–model approach. The population densities did not show any underlying spatial structure but a random log-normal distribution. A temporal data series from the same site depicted two cohorts of samples with high or low densities, which represent hypoxic or well-ventilated conditions in the fjord.
Richard M. Besen, Kathleen Schindler, Andrew S. Gale, and Ulrich Struck
J. Micropalaeontol., 42, 117–146, https://doi.org/10.5194/jm-42-117-2023, https://doi.org/10.5194/jm-42-117-2023, 2023
Short summary
Short summary
Turonian–Coniacian agglutinated foraminiferal assemblages from calcareous deposits from the temperate European shelf realm were studied. Acmes of agglutinated foraminifera correlate between different sections and can be used for paleoenvironmental analysis expressing inter-regional changes. Agglutinated foraminiferal morphogroups display a gradual shift from Turonian oligotrophic environments towards more mesotrophic conditions in the latest Turonian and Coniacian.
Mohamed Kamoun, Martin R. Langer, Chahira Zaibi, and Mohamed Ben Youssef
J. Micropalaeontol., 41, 129–147, https://doi.org/10.5194/jm-41-129-2022, https://doi.org/10.5194/jm-41-129-2022, 2022
Short summary
Short summary
Sedimentology and micropaleontology analyses provide the dynamic processes that shaped the environmental evolution of the Thapsus coastline (Tunisia) including its lagoon and Roman harbor. The highlights are paleoenvironmental change records from the coast of Thapsus for the last 4000 years, benthic foraminiferal biota recording the dynamic coastal processes, two transgressive events being recognized, and a presented model for the paleoenvironmental evolution.
Joachim Schönfeld, Valentina Beccari, Sarina Schmidt, and Silvia Spezzaferri
J. Micropalaeontol., 40, 195–223, https://doi.org/10.5194/jm-40-195-2021, https://doi.org/10.5194/jm-40-195-2021, 2021
Short summary
Short summary
Ammonia beccarii was described from Rimini Beach in 1758. This taxon has often been mistaken with other species in the past. Recent studies assessed the biometry of Ammonia species and integrated it with genetic data but relied on a few large and dead specimens only. In a comprehensive approach, we assessed the whole living Ammonia assemblage near the type locality of A. beccarii and identified parameters which are robust and facilitate a secure species identification.
Julien Richirt, Magali Schweizer, Aurélia Mouret, Sophie Quinchard, Salha A. Saad, Vincent M. P. Bouchet, Christopher M. Wade, and Frans J. Jorissen
J. Micropalaeontol., 40, 61–74, https://doi.org/10.5194/jm-40-61-2021, https://doi.org/10.5194/jm-40-61-2021, 2021
Short summary
Short summary
The study presents (1) a validation of a method which was previously published allowing us to recognize different Ammonia phylotypes (T1, T2 and T6) based only on their morphology and (2) a refined biogeographical distribution presented here supporting the putatively invasive character of phylotype T6. Results suggest that phylotype T6 is currently spreading out and supplanting autochthonous phylotypes T1 and T2 along the coastlines of the British Isles and northern France.
Alix G. Cage, Anna J. Pieńkowski, Anne Jennings, Karen Luise Knudsen, and Marit-Solveig Seidenkrantz
J. Micropalaeontol., 40, 37–60, https://doi.org/10.5194/jm-40-37-2021, https://doi.org/10.5194/jm-40-37-2021, 2021
Short summary
Short summary
Morphologically similar benthic foraminifera taxa are difficult to separate, resulting in incorrect identifications, complications understanding species-specific ecological preferences, and flawed reconstructions of past environments. Here we provide descriptions and illustrated guidelines on how to separate some key Arctic–North Atlantic species to circumvent taxonomic confusion, improve understanding of ecological affinities, and work towards more accurate palaeoenvironmental reconstructions.
Matías Reolid
J. Micropalaeontol., 39, 233–258, https://doi.org/10.5194/jm-39-233-2020, https://doi.org/10.5194/jm-39-233-2020, 2020
Short summary
Short summary
During the early Toarcian (Jurassic, 180 Ma) a hyperthermal event, the Jenkyns Event, occurred, affecting the oxygenation of the sea bottom. The integrated study of foraminiferal and ostracod assemblages with geochemical proxies allows us to interpret the incidence of this event in the Western Tethys, more exactly in the South Iberian Palaeomargin. Diminution of diversity, changes in abundance, and opportunist vs. specialist are coincident with the event.
Michael D. Simmons, Vicent Vicedo, İsmail Ö. Yılmaz, İzzet Hoşgör, Oğuz Mülayim, and Bilal Sarı
J. Micropalaeontol., 39, 203–232, https://doi.org/10.5194/jm-39-203-2020, https://doi.org/10.5194/jm-39-203-2020, 2020
Short summary
Short summary
The microfossils from a Cretaceous outcrop in southern Turkey are described and used to interpret the age of the rocks and their depositional setting and how sea level has changed. These results are compared both locally and regionally, identifying broad correspondence with regional sea level events. A new species of microfossil is described, confirming that many microfossils of Arabia are localised in their distribution.
Dana Ridha, Ian Boomer, and Kirsty M. Edgar
J. Micropalaeontol., 38, 189–229, https://doi.org/10.5194/jm-38-189-2019, https://doi.org/10.5194/jm-38-189-2019, 2019
Short summary
Short summary
This paper records the spatial and temporal distribution of deep-sea benthic microfossils (Foraminifera, single-celled organisms) from the latest Oligocene to earliest Pliocene (about 28 to 4 million years ago) from Ocean Drilling Program cores in the southern Indian Ocean. Key taxa are illustrated and their stratigraphic distribution is presented as they respond to a period of marked global climatic changes, with a pronounced warm period in the mid-Miocene followed by subsequent cooling.
Sev Kender, Adeyinka Aturamu, Jan Zalasiewicz, Michael A. Kaminski, and Mark Williams
J. Micropalaeontol., 38, 177–187, https://doi.org/10.5194/jm-38-177-2019, https://doi.org/10.5194/jm-38-177-2019, 2019
Short summary
Short summary
The Mid-Brunhes Transition saw an enigmatic shift towards increased glacial temperature variations about 400 kyr ago. High-latitude Southern Ocean stratification may have been a causal factor, but little is known of the changes to the high-latitude Bering Sea. We generated benthic foraminiferal assemblage data and are the first to document a glacial decrease in episodic primary productivity since the Mid-Brunhes Transition, signifying possible reductions in sea ice summer stratification.
Malcolm B. Hart, Kevin N. Page, Gregory D. Price, and Christopher W. Smart
J. Micropalaeontol., 38, 133–142, https://doi.org/10.5194/jm-38-133-2019, https://doi.org/10.5194/jm-38-133-2019, 2019
Short summary
Short summary
The use of micropalaeontological samples from mudstone successions that have suffered de-watering and compaction means that subtle, lamina-thick, changes in assemblages may be lost when samples are processed that are 1–2 cm thick. As most micropalaeontological samples are often 2–5 cm thick, one must be then cautious of interpretations based on such short-duration changes. This work is part of an integrated study of the Christian Malford lagerstätten that has resulted in a number of papers.
Andrea Fischel, Marit-Solveig Seidenkrantz, and Bent Vad Odgaard
J. Micropalaeontol., 37, 499–518, https://doi.org/10.5194/jm-37-499-2018, https://doi.org/10.5194/jm-37-499-2018, 2018
Short summary
Short summary
Benthic foraminifera often colonize marine underwater vegetation in tropical regions. We studied these so-called epiphytic foraminifera in a shallow bay in the Bahamas. Here the foraminifera differed between types of vegetation, but sedimentological processes seem to be the main controller of the dead foraminifera in the sediment. This indicates that in carbonate platform regions, epiphytic foraminifera should only be used cautiously as direct indicators of past in situ marine vegetation.
Lyndsey R. Fox, Stephen Stukins, Tom Hill, and Haydon W. Bailey
J. Micropalaeontol., 37, 395–401, https://doi.org/10.5194/jm-37-395-2018, https://doi.org/10.5194/jm-37-395-2018, 2018
Short summary
Short summary
This paper describes five new Mesozoic deep-water benthic foraminifera from the former British Petroleum microfossil reference collections at the Natural History Museum, London.
Joachim Schönfeld
J. Micropalaeontol., 37, 383–393, https://doi.org/10.5194/jm-37-383-2018, https://doi.org/10.5194/jm-37-383-2018, 2018
Short summary
Short summary
Benthic foraminifera from the Bottsand coastal lagoon, western Baltic Sea, have been monitored annually since 2003 and accompanied by hydrographic measurements since 2012. Elphidium incertum, a stenohaline species of the Baltic deep water fauna, colonised the lagoon in 2016, most likely during a period of salinities > 19 units and average temperatures of 18 °C in early autumn. The high salinities probably triggered their germination from a propagule bank in the lagoonal bottom sediment.
Ercan Özcan, Johannes Pignatti, Christer Pereira, Ali Osman Yücel, Katica Drobne, Filippo Barattolo, and Pratul Kumar Saraswati
J. Micropalaeontol., 37, 357–381, https://doi.org/10.5194/jm-37-357-2018, https://doi.org/10.5194/jm-37-357-2018, 2018
Short summary
Short summary
We carried out a morphometric study of late Paleocene orthophragminids from the Mawmluh Quarry section in the Shillong Plateau, India. We recorded the occurrence of two species of Orbitoclypeus, whereas the other typical Tethyan genera Discocyclina is absent. We also identified the associated benthic foraminifera and algae. Shallow benthic zones (SBZ) 3 and 4 have been recognized in the section. The timing of transition from shallow marine to continental deposition is commented on.
Laura J. Cotton, Wolfgang Eder, and James Floyd
J. Micropalaeontol., 37, 347–356, https://doi.org/10.5194/jm-37-347-2018, https://doi.org/10.5194/jm-37-347-2018, 2018
Short summary
Short summary
Shallow-water carbonate deposits rich in larger benthic foraminifera (LBF) are well-known from the Eocene of the Americas. However, there have been few recent LBF studies in this region. Here we present the LBF ranges from two previously unpublished sections from the Ocala limestone, Florida. The study indicates that the lower member of the Ocala limestone may be Bartonian rather than Priabonian in age, with implications for regional biostratigraphy.
Catherine Girard, Anne-Béatrice Dufour, Anne-Lise Charruault, and Sabrina Renaud
J. Micropalaeontol., 37, 87–95, https://doi.org/10.5194/jm-37-87-2018, https://doi.org/10.5194/jm-37-87-2018, 2018
Short summary
Short summary
This study constitutes an attempt to analyze the variations in foraminiferal assemblages using the morphogroup approach in the Late Devonian. Our results show that both methods of estimating morphotype percentages, the traditional counting and the cumulated area methods, provide similar results, are highly correlated with each other, and provide similar relationships with paleoenvironmental proxies.
Cited articles
Alve, E.: Colonization of new habitats by benthic foraminifera: A review,
Earth Sci. Rev.,
46, 167–185, 1999.
Alve, E. and Murray, J. W.: Marginal marine environments of the Skagerrak
and Kattegat: a
baseline study of living (stained) benthic foraminiferal ecology,
Palaeogeogr.
Palaeocl., 146, 171–193, 1999.
Andrén, T., Jørgensen, B. B., Cotterill, C., and Expedition 347
Scientists: Baltic Sea Paleoenvironment, Proc. IODP, 347, College Station, TX (Integrated Ocean Drilling Program),
https://doi.org/10.2204/iodp.proc.347.2015, 2015.
Anjar, J., Adrielsson, L., Bennike, O., Björck, S., Filipsson, H. L.,
Groeneveld, J., Knudsen, K. L.,
Larsen, N. K., and Möller, P.: Palaeoenvironmental history of the Baltic
Sea basin during
Marine Isotope Stage 3, Quaternary Sci. Rev., 34, 81–92, 2012.
Austin, W. E. N., Cage, A. G., and Scourse, J. D.: Mid-latitude shelf seas:
a NW European perspective
on the seasonal dynamics of temperature, salinity, and oxygen isotopes,
Holocene, 16,
937–947, 2006.
Bahr, A., Schönfeld, J., Hofmann, J., Voigt, S., Aurahs, R., Kucera, M.,
Flögel, S., Jentzen, A., and
Gerdes, A.: Comparison of Ba∕Ca and δ18Owater as
freshwater proxies: A multi-species
core-top study on planktonic foraminifera from the vicinity of the Orinoco
River mouth, Earth
Planet. Sc. Lett., 383, 45–57, 2013.
Barker, S., Greaves, M., and Elderfield, H.: A study of cleaning procedures
used for foraminiferal
Mg∕Ca paleothermometry, Geochem. Geophys. Geosys., 4, 8407,
https://doi.org/10.1029/2003GC000559,
2003.
Barras, C., Mouret, A., Nardelli, M. P., Metzger, E., Petersen, J., La, C.,
Filipsson, H. L., and Jorissen, F.:
Experimental calibration of manganese incorporation in foraminiferal
calcite, Geochim. Cosmochim. Ac., 237, 49–64, 2018.
Barrientos, N., Lear, C. H., Jakobsson, M., Stranne, C., O'Regan, M.,
Cronin, T. M., Gukov, A. Y., and
Coxall, H. K.: Arctic Ocean benthic foraminifera Mg∕Ca ratios and global
Mg∕Ca-temperature calibrations: New constraints at low temperatures, Geochim.
Cosmochim. Ac., 236, 240–259,
https://doi.org/10.1016/j.gca.2018.02.036, 2018.
Bauch, H. A., Erlenkeuser, H., Bauch, D., Mueller-Lupp, T., and Taldenkova,
E.: Stable oxygen and
carbon isotopes in modern benthic foraminifera from the Laptev Sea shelf:
implications for
reconstructing proglacial and profluvial environments in the Arctic, Mar. Micropaleontol., 51, 285–300, 2004.
Bemis, B. E., Spero, H. J., Bijma, J., and Lea, D. W.: Reevaluation of the
oxygen isotopic composition of
planktonic foraminifera: Experimental results and revised paleotemperature
equations,
Paleoceanography, 13, 150–160, 1998.
Bernard, P. C., van Grieken, R. E., and Brügmann, L.: Geochemistry of
suspended matter from the
Baltic Sea. 1. Results of individual particle characterization by automated
electron
microprobe, Mar. Chem., 26, 155–177, 1989.
Björck, S.: A review of the history of the Baltic Sea, 13.0–8.0 ka BP,
Quat. Internat., 27, 19–40, 1995.
Björck, S.: The late quaternary development of the Baltic Sea Basin, in:
Assessment of Climate Change for the Baltic Sea Basin, edited by: The BACC Author Team, Springer-Verlag, Berlin-Heidelberg, 398–407, 2008.
Boström, K., Wiborg, L., and Ingri, J.: Geochemistry and origin of
ferromanganese concretions in the
Gulf of Bothnia, Mar. Geol., 50, 1–24, 1982.
Branson, O., Redfern, S. A. T., Tyliszczak, T., Sadekov, A., Langer, G.,
Kimoto, K., and Elderfield, H.: The
coordination of Mg in foraminiferal calcite, Earth Planet. Sc. Lett., 383,
134–141, 2013.
Burdige, D. J.: The biogeochemistry of manganese and iron reduction in
marine sediments, Earth Sci. Rev., 35, 249–284, 1993.
Burton, J. D., Statham, P. J., and Elderfield, H.: Trace metals as tracers
in the ocean, Philos.
T. R. Soc. Lond., 325, 127–145, 1988.
Butruille, C., Krossa, V. R., Schwab, C., and Weinelt, M.: Reconstruction of
mid- to late-Holocene
winter temperatures in the Skagerrak region using benthic foraminiferal
Mg∕Ca and δ18O,
Holocene, 27, 1–10, https://doi.org/10.1177/0959683616652701, 2016.
Calvert, S. E. and Pedersen, T. F.: Geochemistry of recent oxic and anoxic
marine sediments:
Implications for the geological record, Mar. Geol., 113, 67–88, 1993.
Canfield, D. E., Thamdrup, B., and Hansen, J. W.: The anaerobic degradation
of organic matter in
Danish coastal sediments: Iron reduction, manganese reduction, and sulfate
reduction,
Geochim. Cosmochim. Ac., 57, 3867–3883, 1993.
Charrieau, L. M., Filipsson, H. L., Ljung, K., Chierici, M., Knudsen, K. L.,
and Kritzberg, E.: The effects of
multiple stressors on the distribution of coastal benthic foraminifera: A
case study from the
Skagerrak-Baltic Sea region, Mar. Micropaleontol., 139, 42–56, 2018.
Conley, D. J., Carstensen, J., Aigars, J., Axe, P., Bonsdorff, E., Eremina,
T., Haahti, B.-M., Humborg, C.,
Jonsson, P., Kotta, J., Lännegren, C., Larsson, U., Maximov, A., Medina,
M. R., Lysiak-Pastuszak, E., Remeikaite-Nikiene, N., Walve, J., Wilhelms, S., and
Zillén, L.: Hypoxia is
increasing in the coastal zone of the Baltic Sea, Environ. Sci. Technol., 45,
6777–6783, 2011.
Conradsen, K., Bergsten, H., Knudsen, K. L., Nordberg, K., and Seidenkrantz,
M. S.: Recent
benthic foraminiferal distribution in the Kattegat-Skagerrak, Scandinavia,
J. Foramin. Res., 32,
53–68, 1994.
Corliss, B. H.: Microhabitats of benthic foraminifera within deep-sea sediments, Nature, 314, 435–438, 1985.
Darling, K. F., Schweizer, M., Knudsen, K. L., Evans, K. M., Bird, C.,
Roberts, A., Filipsson, H. L., Kim, J.-H., Gudmundsson, G., Wade, C. M., Sayer, M. D., and Austin, W. E. N.: The
genetic diversity,
phylogeography and morphology of Elphidiidae (foraminifera) in the Northeast
Atlantic,
Mar. Micropaleontol., 129, 1–23, https://doi.org/10.1016/j.marmicro.2016.09.001,
2016.
Dekens, P. S., Lea, D. W., Pak, D. K., and Spero, H. J.: Core top
calibration of Mg∕Ca in tropical
foraminifera: Refining paleotemperature estimation, Geochem., Geophys,.
Geosys., 3, 1–29,
https://doi.org/10.1029/2001GC000200, 2002.
de Nooijer, L. J., Brombacher, A., Mewes, A., Langer, G., Nehrke, G., Bijma, J.,
and Reichart, G.-J.: Ba incorporation in benthic foraminifera, Biogeosciences, 14, 3387–3400, https://doi.org/10.5194/bg-14-3387-2017, 2017.
Diaz, R. J. and Rosenberg, R.: Spreading dead zones and consequences for
marine ecosystems,
Science, 321, 926–929, https://doi.org/10.1126/science.1156401, 2008.
Dijkstra, N., Quintana Krupinski, N. B., Yamane, M., Obrochta, S. P.,
Yokoyama, Y., and Slomp, C. P.:
Holocene refreshing and reoxygenation of a Bothnian Sea estuary led to
enhanced
phosphorus burial, Estuar. Coast., 41, 139–157, 2018.
Dissard, D., Nehrke, G., Reichart, G. J., and Bijma, J.: The impact of
salinity on the Mg∕Ca and Sr∕Ca
ratio in the benthic foraminifera Ammonia tepida: Results from culture experiments,
Geochim. Cosmochim. Ac., 74, 928–940, 2010.
Diz, P., Barras, C., Geslin, E., Reichart, G. J., Metzger, E., Jorissen, F.,
and Bijma, J.: Incorporation
of Mg and Sr and oxygen and carbon stable isotope fractionation in cultured
Ammonia tepida, Mar. Micropaleontol., 92–93, 16–28, 2012.
Dyrssen, D.: The Baltic-Kattegat-Skagerrak estuarine system, Estuaries, 16,
446–452, 1993.
Elderfield, H. and Ganssen, G.: Past temperatures and δ18O of
surface ocean waters inferred from
foraminiferal Mg∕Ca ratios, Nature, 405, 442–445, 2000.
Elderfield, H., Yu. J., Anand, P., Kiefer, T., and Nyland, B.: Calibrations
for benthic foraminiferal
Mg∕Ca paleothermometry and the carbonate ion hypothesis, Earth Planet. Sc.
Lett., 250, 633–649, https://doi.org/10.1016/j.epsl.2006.07.041, 2006.
Ellis, B. F. and Messina, A. R.: Catalogue of Foraminifera,
Micropaleontology Press, New York,
The American Museum of Natural History, 1940.
Epstein, S., Buchsbaum, R., Lowenstam, H. A., and Urey, H. C.: Revised
carbonate-water
isotopic temperature scale, Geol. Soc. Am. Bull., 64, 1315–1325,
1953.
Erbs-Hansen, D. R., Knudsen, K. L., Gary, A. C., Gyllencreutz, R., and
Jansen, E.: Holocene
climatic development in Skagerrak, eastern North Atlantic: Foraminiferal and
stable isotopic
evidence, Holocene, 22, 301–312, 2012.
Evans, D. and Müller, W.: Deep time foraminifera Mg∕Ca
paleothermometry: Nonlinear correction
for secular change in seawater Mg∕Ca, Paleoceanography, 27, PA4205,
https://doi.org/10.1029/2012PA002315, 2012.
Feyling-Hanssen, R. W.: Foraminifera in Late Quaternary Deposits from the
Oslofjord Area, Skrifter
(Norges geologiske undersøkelse), Universitetsforlaget, Oslo, 225, 1964.
Feyling-Hanssen, R. W.: The foraminifer Elphidium excavatum (Terquem) and its variant forms,
Micropaleontology, 18, 337–354, 1972.
Feyling-Hanssen, R. W., Jørgensen, J. A., Knudsen, K. L., and Andersen,
A. I.: Late Quaternary
foraminifera from Vendsyssel, Denmark and Sandnes, Norway, Bull. Geol. Soc.
Den., 21, 61–317, 1971.
Filipsson, H. L. and Nordberg, K.: Climate variations, an overlooked
factor influencing the
recent marine environment. An example from Gullmar Fjord, Sweden,
illustrated by benthic
foraminifera and hydrographic data, Estuaries, 27, 867–881, 2004a.
Filipsson, H. L. and Nordberg, K.: A 200-year environmental record of a
low-oxygen fjord,
Sweden, elucidated by benthic foraminifera, sediment characteristics and
hydrographic
data, J. Foram. Res., 34, 277–293, https://doi.org/10.2113/34.4.277, 2004b.
Filipsson, H. L., Nordberg, K., and Gustafsson, M.: Seasonal study of
δ18O and δ13C in living
(stained) benthic foraminifera from two Swedish fjords, Mar. Micropaleontol., 53,
159–172, 2004.
Filipsson, H. L., McCorkle, D. C., Mackensen, A., Bernhard, J. M.,
Andersson, L. S., Naustvoll, L. J.,
Caballero-Alfonso, A. M., Nordberg, K., and Danielssen, D. S.: Seasonal
variability of stable
carbon isotopes (δ13CDIC) in the Skagerrak and the Baltic
Sea: Distinguishing between mixing
and biological productivity, Palaeogeogr. Palaeocl., 483,
15–30, 2017.
Fontanier, C., Duros, P., Toyofuku, T., Oguri, K., Koho, K. A., Buscail, R.,
Gremare, A., Radakovitch, O., Deflandre, B., De Nooijer, L. J., Bichon, S., Goubet, S.,
Ivanovsky, A., Chabaud, G., Menniti, C., Reichart, G.-J., and Kitazato, H.: Living (stained) deep-sea foraminifera off Hachinohe
(NE Japan, Western
Pacific): Environmental interplay in oxygen-depleted ecosystems, J. Foram.
Res., 44, 281–299,
2014.
Froelich, P. N., Klinkhammer, G. P., Bender, M. L., Luedtke, N. A., Heath,
G. R., Cullen, D., Dauphin, P.,
Hammond, D., Hartman, B., and Maynard, V.: Early oxidation of organic matter
in
pelagic sediments of the eastern equatorial Atlantic: suboxic diagenesis,
Geochim.
Cosmochim. Ac., 43, 1075–1090, 1979.
Fröhlich, K., Grabczak, J., and Rozanski, K.: Deuterium and oxygen-18 in
the Baltic Sea, Chem. Geol.,
72, 77–83, 1988.
Geslin, E., Heinz, P., Jorissen, F., and Hemleben, Ch.: Migratory responses
of deep-sea benthic
foraminifera to variable oxygen conditions: laboratory investigations, Mar. Micropaleontol., 53,
227–243, 2004.
Glock, N., Eisenhauer, A., Liebetrau, V., Wiedenbeck, M., Hensen, C., and Nehrke, G.:
EMP and SIMS studies on Mn∕Ca and Fe∕Ca
systematics in benthic foraminifera from the Peruvian OMZ: a contribution to the
identification of potential redox proxies and the impact of cleaning
protocols, Biogeosciences, 9, 341–359, https://doi.org/10.5194/bg-9-341-2012, 2012.
Goldberg, T., Archer, C., Vance, D., Thamdrup, B., McAnena, A., and Poulton,
S. W.: Controls on Mo
isotope fractionation in a Mn-rich anoxic marine sediment, Gullmar Fjord,
Sweden, Chem.
Geol., 296–297, 73–82, 2012.
Grasshoff, K. and Voipio, A.: Chemical Oceanography, in: The Baltic Sea, edited by: Voipio, A.,
Elsevier
Oceanography Series 30, Amsterdam, 183–218, 1981.
Greaves, M., Caillon, N., Rebaubier, H., Bartoli, G., Bohaty, S., Cacho, I.,
Clarke, L., Cooper, M. Daunt, C., Delaney, M., deMenocal, P., Dutton, A., Eggins, S.,
Elderfield, H., Garbe-Schönberg, D., Goddard, E., Green, D., Groeneveld, J., Hastings, D.,
Hathorne, E., Kimoto, K., Klinkhammer, G., Labeyrie, L., Lea, D. W., Marchitto, T.,
Martinez-Boti, M. A., Mortyn, P. G., Ni, Y., Nürnberg, D., Paradis, G., Pena, L.,
Quinn, T., Rosenthal, Y., Russell, A., Sagawa, T., Sosdian, S., Stott, L., Tachikawa, K.,
Tappa, E., Thunell, R., and Wilson, P. A.: Interlaboratory comparison
study of calibration
standards for foraminiferal Mg∕Ca thermometry, Geochem. Geophys. Geosyst.,
9, Q08010, https://doi.org/10.1029/2008GC001974, 2008.
Groeneveld, J. and Filipsson, H. L.: Mg∕Ca and Mn∕Ca
ratios in benthic foraminifera: the potential to reconstruct past variations in
temperature and hypoxia in shelf regions, Biogeosciences, 10, 5125–5138, https://doi.org/10.5194/bg-10-5125-2013, 2013.
Grunert, P., Rosenthal, Y., Jorissen, F., Holbourn, A., Zhou, X., and
Piller, W.: Mg∕Ca-temperature
calibration for costate Bulimina species (B. costata, B. inflata, B. mexicana): A
paleothermometer for hypoxic environments, Geochim. Cosmochim. Ac., 220,
36–54, 2018.
Gustafsson, M. and Nordberg, K.: Living (stained) benthic foraminifera and
their response to the
seasonal hydrographic cycle, periodic hypoxia and to primary production in
Havstens
Fjord on the Swedish west coast, Estuar. Coast. Shelf Sci., 51, 743–761,
2000.
Gustafsson, B. G. and Westman, P.: On the causes for salinity variations in
the Baltic Sea
during the last 8500 years, Paleoceanography, 17, 1–14, https://doi.org/10.1029/2000PA000572,
2002.
Hall, J. M. and Chan, L. -H.: Li/Ca in multiple species of benthic and
planktonic foraminifera:
Thermocline, latitudinal, and glacial-interglacial variation, Geochim.
Cosmochim. Ac., 68, 529–545, 2004.
Hall, T. A.: BioEdit: a user-friendly biological sequence alignment editor
and analysis program for
Windows 95/98/NT, Nucl. Acid. S., 41, 95–98, 1999.
Hammer, Ø., Harper, D. A. T., and Ryan, P. D.: PAST: Paleontological
Statistics Software Package for
Education and Data Analysis, Palaeontol. Electron., 4, 4,
2001.
Hartman, M.: Zur Geochemie von Mangan und Eisen in der Ostsee, Meyniana, 14,
3–20, 1964.
Hathorne, E. C., James, R. H., and Lampitt, R. S.: Environmental versus
biomineralization controls on the intratest variation in the trace element
composition of the planktonic
foraminifera G. inflata and G. scitula, Paleoceanography, 24, PA4204, https://doi.org/10.1029/2009PA001742,
2009.
Havach, S. M., Chandler, G. T., Wilson-Fenelli, A., and Shaw, T. J.:
Experimental determination of
trace element partition coefficients in cultured benthic foraminifera,
Geochim. Cosmochim.
Ac., 65, 1277–1283, 2001.
Haynes, J. R.: Supposed pronounced ecophenotypy in foraminifera, J.
Micropaleontology, 11, 59–63,
1992.
Hayward, B. W., Holzmann, M., Grenfell, H. R., Pawlowski, J., and Triggs, C.
M.: Morphological distinction of molecular types in Ammonia – towards a taxonomic
revision of the world's most commonly misidentified foraminifera, Mar. Micropaleontol., 50, 237–271, 2004.
Hayward, B. W., Figueira, B. O., Sabaa, A. T., and Buzas, M. A.: Multi-year
life spans of high salt marsh agglutinated foraminifera from New Zealand,
Mar. Micropaleontol., 109, 54–65, 2014.
Hjalmarsson, S., Chierici, M., and Anderson, L. G.: Carbon dynamics in a
productive coastal region –
The Skagerrak, J. Mar. Sys., 82, 245–251, 2010.
Holzmann, M. and Pawlowski, J.: Taxonomic relationships in the genus
Ammonia (Foraminifera)
based on ribosomal DNA sequences, J. Micropaleont., 19, 85–95, 2000.
Holzmann, M. and Pawlowski, J.: An updated classification of rotaliid
foraminifera based on
ribosomal DNA phylogeny, Mar. Micropaleontol., 132, 18–34, 2017.
Hönisch, B., Allen, K. A., Russell, A. D., Eggins, S. M., Bijma, J.,
Spero, H. J., Lea, D. W., and Yu, J.:
Planktic foraminifers as recorders of sea water Ba∕Ca, Mar. Micropaleontol., 79,
52–57, 2011.
Huang, E., Mulitza, S., Paul, A., Groeneveld, J., Steinke, S., and Schulz,
M.: Response of eastern
tropical Atlantic central waters to Atlantic meridional overturning
circulation changes during
the Last Glacial Maximum and Heinrich Stadial 1, Paleoceanography, 27,
PA3229,
https://doi.org/10.1029/2012PA002294, 2012.
Huckriede, H. and Meischner, D.: Origin and environment of manganese-rich
sediments within black-shale basins, Geochim. Cosmochim. Ac., 60, 1399–1413, 1996.
Ingri, J., Löfvendahl, R., and Boström, K.: Chemistry of suspended
particles in the southern Baltic Sea,
Mar. Chem., 32, 73–87, 1991.
Jakobsson, M., Björck, S., Alm, G., Andrén, T., Lindeberg, G., and
Svensson, N. O.: Reconstructing the
Younger Dryas ice dammed lake in the Baltic Basin: bathymetry, area and
volume, Global
Planet. Change, 57, 355–370, 2007.
Jilbert, T. and Slomp, C. P.: Rapid high-amplitude variability in Baltic
Sea hypoxia during the
Holocene, Geology, 41, 1183–1186, 2013.
Jones, R. W.: Henry Bowman Brady (1835–1891): the man, the scientist and the
scientific legacy, in: Landmarks in Foraminiferal Micropalaeontology, History and Development, edited by: Bowden, J., Gregory, F. J., and Henderson, A. S., The
Micropalaentological Society,
Special Publications, Geological Society, London, 23–30, 2013.
Jorissen, F. J., de Stigter, H. C., and Widmark, J. G. V.: A conceptual
model explaining benthic
foraminiferal microhabitats, Mar. Micropaleontol., 26, 3–15, 1995.
Keeling, R. F. and Garcia, H. E.: The change in oceanic O2 inventory
associated with recent global
warming, P. Natl. Acad. Sci. USA, 99, 7848–7853, 2002.
Kisakürek, B., Eisenhauer, T., Böhm, F., Garbe-Schönberg, D.,
and Erez, J.: Controls on shell Mg∕Ca
and Sr∕Ca in cultured planktonic foraminifera, Globigerinoides ruber (white), Earth Planet. Sc.
Lett., 273, 260–269, https://doi.org/10.1016/j.epsl.2008.06.026, 2008.
Klinkhammer, G. P., Mix, A. C., and Haley, B. A.: Increased dissolved
terrestrial input to the coastal
ocean during the deglaciation, Geochem. Geophys. Geosys., 10, Q03009,
https://doi.org/10.1029/2008GC002219, 2009.
Koho, K. A., de Nooijer, L. J., and Reichart, G. J.: Combining benthic
foraminiferal ecology and shell
Mn∕Ca to deconvolve past bottom water oxygenation and paleoproductivity,
Geochim.
Cosmochim. Ac., 165, 294–306, 2015.
Koho, K. A., de Nooijer, L. J., Fontanier, C., Toyofuku, T., Oguri, K., Kitazato, H.,
and Reichart, G.-J.: Benthic foraminiferal Mn∕Ca ratios
reflect microhabitat preferences, Biogeosciences, 14, 3067–3082, https://doi.org/10.5194/bg-14-3067-2017, 2017.
Kotilainen, A. T., Arppe, L., Dobosz, S., Jansen, E., Kabel, K., Karhu, J., Kotilainen, M. M.,
Kuijpers, A., Lougheed, B. C., Meier, H. E. M., Moros, M., Neumann, T., Porsche, C.,
Poulsen, N. Rasmussen, P., Ribeiro, S., Risebrobakken, B., Ryabchuk, D.,
Schimanke, S., Snowball, I., Spiridonov, M., Virtasalo, J. J., Weckström, K., Witkowski, A., and Zhamoida, V.: Echoes from the past: A healthy Baltic Sea
requires more effort, Ambio, 43, 60–68, 2014.
Kotthoff, U., Groeneveld, J., Ash, J. L., Fanget, A.-S., Krupinski, N. Q., Peyron, O., Stepanova, A.,
Warnock, J., Van Helmond, N. A. G. M., Passey, B. H., Clausen, O. R., Bennike, O.,
Andrén, E., Granoszewski, W., Andrén, T., Filipsson, H. L., Seidenkrantz, M.-S.,
Slomp, C. P., and Bauersachs, T.: Reconstructing Holocene temperature and salinity
variations in the western Baltic Sea region: a multi-proxy comparison from the
Little Belt (IODP Expedition 347, Site M0059), Biogeosciences, 14, 5607–5632, https://doi.org/10.5194/bg-14-5607-2017, 2017.
Kremling, K. and Wilhelm, G.: Recent increase of the calcium concentrations
in the Baltic Sea
waters, Mar. Poll. Bull., 34, 763–767, 1997.
Kristensen, P. H. and Knudsen, K. L.: Palaeoenvironments of a complete
Eemian sequences at
Mommark, South Denmark: foraminifera, ostracods and stable isotopes, Boreas,
35, 349–366,
2006.
Kristjánsdóttir, G. B., Lea, D. W., Jennings, A. E., Pak, D. K., and
Belanger, C.: New spatial Mg∕Ca-temperature calibrations for three Arctic, benthic foraminifera and
reconstruciton of north
Iceland shelf temperature for the past 4000 years, Geochem. Geophys.
Geosys., 8, Q03P21,
https://doi.org/10.1029/2006GC001425, 2007.
Lea, D. and Boyle, E.: Barium content of benthic foraminifera controlled by
bottom-water
composition, Nature, 338, 751–753, 1989.
Lea, D. W. and Boyle, E. A.: Barium in planktonic foraminifera, Geochim.
Cosmochim. Ac., 55, 3321–3331, 1991.
Lea, D. W. and Spero, H. J.: Assessing the reliability of paleochemical
tracers: Barium uptake in the
shells of planktonic foraminifera, Paleoceanography, 9, 445–452,
1994.
Lea, D. W., Mashiotta, T. A., and Spero, H. J.: Controls on magnesium and
strontium uptake in
planktonic foraminifera determined by live culturing, Geochim. Cosmochim.
Ac., 63, 2369–2379, 1999.
Lear, C. H., Rosenthal, Y., and Slowey, N.: Benthic foraminiferal
Mg∕Ca-paleothermometry: A revised
core-top calibration, Geochim. Cosmochim. Ac., 66, 3375–3387, 2002.
Lenz, C., Jilbert, T., Conley, D. J., and Slomp, C. P.: Hypoxia-driven
variations in iron and manganese
shuttling in the Baltic Sea over the past 8 kyrs, Geochem. Geophys.
Geosys., 16,
3754–3766, https://doi.org/10.1002/2015GC005960, 2015.
Loeblich, A. R. and Tappan, H.: Part C, Protista 2, Sarcodina, Chiefly
`Thecamoebians' and
Foraminiferida, in: Treatise on Invertebrate Paleontology, edited by: Moore, R. C., The
Geological Society of America and the University of Kansas, 900 pp.,
1964.
Löfvendahl, R., Åberg, G., and Hamilton, P. J.: Strontium in rivers
of the Baltic Basin, Aquat. Sci.,
52, 315–329, 1990.
Lutze, G. F.: Zur Foraminiferen-Fauna der Ostsee, Meyniana, 15, 75–142,
1965.
Madden, T.: The BLAST Sequence Analysis Tool, in: The NCBI Handbook, edited by: McEntyre, J. and Ostell,
J., Bethesda (MD): National Center for Biotechnology Information
(US), Chapter
16, available at: http://www.ncbi.nlm.nih.gov/books/NBK21097/ (last access: June 2016),
2002.
Matthäus, W. and Schinke, H.: The influence of river runoff on deep
water conditions of the Baltic
Sea, Hydrobiologia, 393, 1–10, 1999.
McCorkle, D. C., Corliss, B. H., and Farnham, C. A.: Vertical distributions
and stable isotopic
compositions of live (stained) benthic foraminifera from the North Carolina
and California
continental margins, Deep-Sea Res. Pt. I, 44, 983–1024, 1997.
McKay, C. L., Groeneveld, J., Filipsson, H. L., Gallego-Torres, D., Whitehouse, M. J.,
Toyofuku, T., and Romero, O. E.: A comparison of benthic foraminiferal Mn∕Ca
and sedimentary Mn∕Al as proxies of relative bottom-water
oxygenation in the low-latitude NE Atlantic upwelling system, Biogeosciences, 12, 5415–5428, https://doi.org/10.5194/bg-12-5415-2015, 2015.
McKenna, C., Berx, B., and Austin, W. E. N.: The decomposition of the
Faroe-Shetland Channel water
masses using Parametric Optimum Multi-Parameter analysis, Deep-Sea Res. Pt. I,
107, 9–21,
2016.
Mehrbach, C., Culberso, C. H., Hawley, J. E., and Pytkowic, R. M.:
Measurement of apparent
dissociation constants of carbonic acid in seawater at atmospheric pressure,
Limnol.
Oceanogr., 18, 897–907, 1973.
Meier, H. E. M., Andersson, H. C., Eilola, K., Gustafsson, B. G., Kuznetsov,
I., Müller-Karulis, B.,
Neumann, T., and Savchuk, O. P.: Hypoxia in future climates: A model
ensemble study for the
Baltic Sea, Geophys. Res. Lett., 38, L24608, https://doi.org/10.1029/2011GL049929,
2011.
Mertens, K. N., Bringue, M., van Nieuwenhove, N., Takano, Y., Pospelova, V., Rochon, A.,
de Vernal, A., Radi, T., Dale, B., Patterson, R. T., Weckström, K., Andren, E., Louwye, S., and Matsuoka, K.: Process length variation of the cyst of the
dinoflagellate Protoceratium
reticulatum in the North Pacific and Baltic-Skagerrak region: calibration as an annual
density
proxy and first evidence of pseudo-cryptic speciation, J. Quaternary Sci., 27,
734–744, 2012.
Mohrholz, V., Naumann, M., Nausch, G., Krüger, S., and Gräwe, U.:
Fresh oxygen for the Baltic Sea –
An exceptional saline inflow after a decade of stagnation, J. Mar. Sys.,
148, 152–166, 2015.
Murray, J. W. (Ed.): Ecology and applications of benthic foraminifera,
Cambridge University Press, Cambridge, 426 pp., 2006.
Murray, J. W.: Biodiversity of living benthic foraminifera: How many species
are there?, Mar. Micropaleontol., 64, 163–176, https://doi.org/10.1016/j.marmicro.2007.04.002, 2007.
Murray, J. W. and Alve, E.: The distribution of agglutinated Foraminifera
in NW European seas:
baseline data for the interpretation of fossil assemblages, Palaeontol.
Electron., 14, 14A, 1–41,
2011.
Nardelli, M. P., Barras, C., Metzger, E., Mouret, A., Filipsson, H. L., Jorissen, F.,
and Geslin, E.: Experimental evidence for foraminiferal calcification
under anoxia, Biogeosciences, 11, 4029–4038, https://doi.org/10.5194/bg-11-4029-2014, 2014.
Nehring, D.: Hydrographic and chemical conditions in the Western and Central
Baltic Sea from 1979
to 1988 – a comparison, Mar. Sci. Rep., 2, 2–45, 1990.
Ní Fhlaithearta, S., Reichart, G.-J., Jorissen, F. J., Fontanier, C.,
Rohling, E. J., Thomson, J., and De
Lange, G. J.: Reconstructing the seafloor environment during sapropel
formation using
benthic foraminiferal trace metals, stable isotopes, and sediment
composition,
Paleoceanography, 25, PA4225, https://doi.org/10.1029/2009PA001869, 2010.
Ning, W., Ghosh, A., Jilbert, T., Slomp, C. P., Khan, M., Nyberg, J.,
Conley, D. J., and Filipsson, H. L.:
Evolving coastal character of a Baltic Sea inlet during the Holocene
shoreline regression:
impact on coastal zone hypoxia, J. Paleolimno., 55, 319–338,
https://doi.org/10.1007/s10933-016-9882-6,
2016.
Ning, W., Andersson, P. S., Ghosh, A., Khan, M., and Filipsson, H. L.:
Quantitative salinity
reconstructions of the Baltic Sea during the mid-Holocene, Boreas, 46,
100–110, https://doi.org/10.1111/bor.12156, 2017.
Nordberg, K. and Bergsten, H.: Biostratigraphic and sedimentological
evidence of hydrographic
changes in the Kattegat during the later part of the Holocene, Mar. Geol.,
83, 135–158, 1988.
Nürnberg, D.: Taking the temperature of past ocean surfaces, Science,
289, 1698–1699, https://doi.org/10.1126/science.289.5485.1698, 2000.
Ohlson, M. and Anderson, L.: Recent investigation of total carbonate in the
Baltic Sea: changes from
the past as a result of acid rain?, Mar. Chem., 30, 259–267, 1991.
Osterman, L. E., Poore, R. Z., Swarzenski, P. W., and Turner, R. E.:
Reconstructing a 180 yr
record of natural and anthropogenic induced low-oxygen conditions from
Louisiana
continental shelf sediments, Geology, 33, 329–332, https://doi.org/10.1130/G21341.1,
2005.
Pawlowski, J.: Introduction to the molecular systematics of foraminifera,
Micropaleontology, 46, 1–12, 2000.
Pawlowski, J. and Holzmann, M.: Diversity and geographic distribution of
benthic foraminifera: a
molecular perspective, Biodivers. Conserv., 17, 317–328,
2008.
Pawlowski, J. and Holzmann, M.: A plea for DNA barcoding of foraminifera,
J. Foram. Res., 44, 62–67,
2014.
Pedersen, T. F. and Price, N. B.: The geochemistry of manganese carbonate
in Panama Basin
sediments, Geochim. Cosmochim. Ac., 46, 59–68, 1982.
Petersen, J., Riedel, B., Barras, C., Pays, O., Guihéneuf, A.,
Mabilleau, G., Schweizer, M., Meysman, F.
J. R., and Jorissen, F. J.: Improved methodology for measuring pore
patterns in the benthic
foraminiferal genus Ammonia, Mar. Micropaleontol., 128, 1–13, 2016.
Petersen, J., Barras, C., Bézos, A., La, C., de Nooijer, L. J., Meysman, F. J. R.,
Mouret, A., Slomp, C. P., and Jorissen, F. J.: Mn∕Ca intra- and inter-test variability
in the benthic foraminifer Ammonia tepida, Biogeosciences, 15, 331–348, https://doi.org/10.5194/bg-15-331-2018, 2018.
Pierrot, D., Lewis, E., Wallace, D. W. R. (Eds.): MS Excel program developed for CO2 system
calculations, ORNL/CDIAC-105, Carbon Dioxide Inf. Anal. Cent., Oak Ridge Natl. Lab, US
Dep. of Energy, Oak Ridge, Tenn., 2006.
Pillet, L., Voltski, I., Korsun, S., and Pawlowski, J.: Molecular phylogeny
of Elphidiidae
(foraminifera), Mar. Micropaleontol., 103, 1–14, 2013.
Platon, E., Sen Gupta, B. K., Rabalais, N. N., and Turner, R. E.: Effect of
seasonal hypoxia on the
benthic foraminiferal community of the Louisiana inner continental shelf:
The 20th century
record, Mar. Micropaleontol., 54, 263–283, 2005.
Polovodova, I. and Schönfeld, J.: Foraminiferal test abnormalities in
the western Baltic Sea, J. Foram.
Res., 38, 318–336, 2008.
Polyak, L., Stanovoy, V., and Lubinski, D. J.: Stable isotopes in benthic
foraminiferal calcite from
a river-influenced Arctic marine environment, Kara and Pechora Seas,
Paleoceanography, 18,
1003, https://doi.org/10.1029/2001PA000752, 2003.
Punning, J.-M., Martma, T., Kessel, H., and Vaikmäe, R.: The isotopic
composition of oxygen and
carbon in the subfossil mollusc shells of the Baltic Sea as an indicator of
palaeosalinity,
Boreas, 17, 27–31, 1988.
Raitzsch, M., Kuhnert, H., Groeneveld, J., and Bickert, T.: Benthic
foraminifer Mg∕Ca anomalies in
South Atlantic core top sediments and their implications for
paleothermometry,
Geochem. Geophys. Geosys., 9, Q05010, https://doi.org/10.1029/2007GC001788,
2008.
Raitzsch, M., Dueñas-Bohórquez, A., Reichart, G.-J., de Nooijer, L. J., and
Bickert, T.: Incorporation of Mg and Sr in calcite of cultured benthic foraminifera:
impact of calcium concentration and associated calcite saturation
state, Biogeosciences, 7, 869–881, https://doi.org/10.5194/bg-7-869-2010, 2010.
Raitzsch, M., Hathorne, E. C., Kuhnert, H., Groeneveld, J., and Bickert, T.:
Modern and late
Pleistocene B∕Ca ratios of the benthic foraminifer Planulina wuellerstorfi determined with
laser ablation ICP-MS, Geology, 39, 1039–1042, https://doi.org/10.1130/G32009.1,
2011.
Regenberg, M., Nürnberg, D., Steph, S., Groeneveld, J., Garbe-Schönberg, D., Tiedemann, R., and Dullo, W.: Assessing the effect of dissolution
on planktonic foraminiferal Mg/Ca ratios: Evidence from Caribbean
core tops, Geochem. Geophys. Geosyst., 7, Q07P15, https://doi.org/10.1029/2005GC001019, 2006.
Roberts, A., Austin, W. E. N., Evans, K., Bird, C., Schweizer, M., and
Darling, K.: A new integrated
approach to taxonomy: the fusion of molecular and morphological systematics
with type
material in benthic foraminifera, PLoS One, 11, e0158754,
https://doi.org/10.1371/journal.pone.0158754, 2016.
Sadekov, A. Y., Eggins, S. M., and De Deckker, P.: Characterization of Mg∕Ca
distributions in
planktonic foraminifera species by electron microprobe mapping, Geochem.
Geophys. Geosys., 6, Q12P06, https://doi.org/10.1029/2005GC000973, 2005.
Salminen, R. (Ed.): Geochemical Atlas of Europe. Part 1: Background
information, methodology
and maps, Geological Survey of Finland, Espoo, 526 pp., 2005.
Schmiedl, G., Pfeilsticker, M., Hemleben, Ch., and Mackensen, A.:
Environmental and biological effects on the stable isotope composition of
recent deep-sea benthic foraminifera from the western Mediterranean Sea,
Mar. Micropaleontol., 51, 129–152, 2004.
Scholz, F., Hensen, C., Noffke, A., Rohde, A., Liebetrau, V., and Wallmann,
K.: Early diagenesis of
redox-sensitive trace metals in the Peru upwelling area – response to
ENSO-related oxygen
fluctuations in the water column, Geochim. Cosmochim. Ac., 75, 7257–7276,
2011.
Schönfeld, J. and Numberger, L.: The benthic foraminiferal response to
the 2004 spring bloom in the
western Baltic Sea, Mar. Micropaleontol., 65, 78–95, 2007.
Schweizer, M.: How long after death is DNA preserved in situ in intertidal
foraminifera?, J. Micropal., 34, 217–219, 2015.
Schweizer, M., Pawlowski, J., Duijnstee, I. A. P., Kouwenhoven, T. J., and
van der Zwaan, G. J.: Molecular phylogeny of the foraminiferal genus
Uvigerina based on ribosomal DNA sequences, Mar. Micropaleontol., 57, 51–67, 2005.
Schweizer, M., Pawlowski, J., Kouwenhoven, T. J., Guiard, J., and van der
Zwaan, B.: Molecular phylogeny of Rotaliida (Foraminifera) based on complete
small subunit rDNA sequences, Mar. Micropaleontol., 66, 233–246, 2008.
Schweizer, M., Pawlowski, J., Kouwenhoven, T., and van der Zwaan, B.:
Molecular phylogeny of common cibicidids and related Rotaliida
(Foraminifera) based on small subunit rDNA sequences, J. Foram. Res., 39,
300–315, 2009.
Schweizer, M., Jorissen, F., and Geslin, E.: Contributions of molecular
phylogenetics to foraminiferal taxonomy: General overview and an example
with Pseudoeponides falsobeccarii Rouvillois, 1974, C. R. Palevol., 10, 95–105, 2011a.
Schweizer, M., Polovodova, I., Nikulina, A., and Schönfeld, J.:
Molecular identification of Ammonia and Elphidium species (Foraminifera, Rotaliida) from the
Kiel Fjord (SW Baltic Sea) with rDNA sequences, Helgoland Mar. Res., 65,
1–10, 2011b.
Segev, E. and Erez, J.: Effect of Mg∕Ca ratio in seawater on shell
composition in shallow benthic foraminifera, Geochem. Geophys. Geosys., 7,
Q02P09, https://doi.org/10.1029/2005GC000969,
2006.
Skirbekk, K., Hald, M., Marchitto, T. M., Junttila, J., Kristensen, D. K.,
and Sörensen, S. A.:
Benthic foraminiferal growth seasons implied from Mg∕Ca-temperature
correlations for
three Arctic species, Geochem. Geophys. Geosys., 17, 4684–4704,
https://doi.org/10.1002/2016GC006505, 2016.
Tappan, H. and Loeblich, A. R.: Foraminiferal Evolution, Diversification,
and Extinction, J.
Paleontology, 62, 695–714, 1988.
Toyofuku, T., Suzuki, M., Suga, H., Sakai, S., Suzuki, A., Ishikawa, T., De
Nooijer, L. J., Schiebel, R.,
Kawahata, H., and Kitazato, H.: Mg∕Ca and δ18O in the brackish
shallow-water benthic
foraminifer Ammonia beccarii, Mar. Micropaleontol., 78, 113–120, 2011.
Tribovillard, N., Algeo, T. J., Lyons, T., and Riboulleau, A.: Trace metals
as paleoredox and
paleoproductivity proxies: An update, Chem. Geol., 232, 12–32,
2006.
Turner, D. R., Dickson, A. G., and Whitfield, M.: Water-rock partition
coefficients and the composition of
natural waters – a reassessment, Mar. Chem., 9, 211–218, 1980.
Van Helmond, N. A. G. M., Krupinski, N. Q., Lougheed, B. C., Obrochta, S.
P., Andrén, T., and Slomp, C.
P.: Seasonal hypoxia was a natural feature of the coastal zone in the Little
Belt, Denmark,
during the past 8 ka, Mar. Geol., 387, 45–57, https://doi.org/10.1016/j.margeo.2017.03.008,
2017.
Weber, A. A.-T. and Pawlowski, J.: Wide occurrence of SSU rDNA
intragenomic polymorphism in
foraminifera and its implications for molecular species identification,
Protist, 165, 645–661,
2014.
Weldeab, S., Lea, D. W., Schneider, R. R., and Andersen, N.: 155,000 years
of West African
monsoon and ocean thermal evolution, Science, 316, 1303–1307, 2007.
White, T. J., Bruns, T., Lee, S. J. W. T., and Taylor, J. W.: Amplification and
direct sequencing of fungal
ribosomal RNA genes for phylogenetics, PCR protocols: a Guide to Methods and
Applications, 18, 315–322, 1990.
Widerlund, A. and Andersson, P. S.: Late Holocene freshening of the Baltic
Sea derived from high-resolution strontium isotope analyses of mollusk shells, Geology, 39,
187–190, 2011.
Wit, J. C., de Nooijer, L. J., Barras, C., Jorissen, F. J., and Reichart, G. J.:
A reappraisal of the vital effect in cultured benthic foraminifer Bulimina marginata on Mg∕Ca values: assessing temperature uncertainty
relationships, Biogeosciences, 9, 3693–3704, https://doi.org/10.5194/bg-9-3693-2012, 2012.
Zillén, L., Conley, D. J., Andrén, T., Andrén, E., and
Björck, S.: Past occurrences of hypoxia in the Baltic
Sea and the role of climate variability, environmental change and human
impact, Earth-Sci.
Rev., 91, 77–92, 2008.
Short summary
Current climate and environmental changes strongly affect shallow marine and coastal areas like the Baltic Sea. The combination of foraminiferal geochemistry and environmental parameters demonstrates that in a highly variable setting like the Baltic Sea, it is possible to separate different environmental impacts on the foraminiferal assemblages and therefore use chemical factors to reconstruct how seawater temperature, salinity, and oxygen varied in the past and may vary in the future.
Current climate and environmental changes strongly affect shallow marine and coastal areas like...
