Articles | Volume 42, issue 2
https://doi.org/10.5194/jm-42-257-2023
© Author(s) 2023. 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-42-257-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Nov 2023
Research article |
| 27 Nov 2023
| 27 Nov 2023
Dinoflagellate cyst and pollen assemblages as tracers for marine productivity and river input in the northern Gulf of Mexico
Department of Earth Sciences, Utrecht University, 3584 CB Utrecht, the Netherlands
Timme Donders
Department of Physical Geography, Utrecht University, 3584 CB Utrecht, the Netherlands
Francien Peterse
Department of Earth Sciences, Utrecht University, 3584 CB Utrecht, the Netherlands
Francesca Sangiorgi
Department of Earth Sciences, Utrecht University, 3584 CB Utrecht, the Netherlands
Related authors
Yord W. Yedema, Francesca Sangiorgi, Appy Sluijs, Jaap S. Sinninghe Damsté, and Francien Peterse
Biogeosciences, 20, 663–686, https://doi.org/10.5194/bg-20-663-2023, https://doi.org/10.5194/bg-20-663-2023, 2023
Short summary
Short summary
Terrestrial organic matter (TerrOM) is transported to the ocean by rivers, where its burial can potentially form a long-term carbon sink. This burial is dependent on the type and characteristics of the TerrOM. We used bulk sediment properties, biomarkers, and palynology to identify the dispersal patterns of plant-derived, soil–microbial, and marine OM in the northern Gulf of Mexico and show that plant-derived OM is transported further into the coastal zone than soil and marine-produced TerrOM.
Frida S. Hoem, Karlijn van den Broek, Adrián López-Quirós, Suzanna H. A. van de Lagemaat, Steve M. Bohaty, Claus-Dieter Hillenbrand, Robert D. Larter, Tim E. van Peer, Henk Brinkhuis, Francesca Sangiorgi, and Peter K. Bijl
J. Micropalaeontol., 43, 497–517, https://doi.org/10.5194/jm-43-497-2024, https://doi.org/10.5194/jm-43-497-2024, 2024
Short summary
Short summary
The timing and impact of onset of Antarctic Circumpolar Current (ACC) on climate and Antarctic ice are unclear. We reconstruct late Eocene to Miocene southern Atlantic surface ocean environment using microfossil remains of dinoflagellates (dinocysts). Our dinocyst records shows the breakdown of subpolar gyres in the late Oligocene and the transition into a modern-like oceanographic regime with ACC flow, established frontal systems, Antarctic proximal cooling, and sea ice by the late Miocene.
Allix J. Baxter, Francien Peterse, Dirk Verschuren, Aihemaiti Maitituerdi, Nicolas Waldmann, and Jaap S. Sinninghe Damsté
Biogeosciences, 21, 2877–2908, https://doi.org/10.5194/bg-21-2877-2024, https://doi.org/10.5194/bg-21-2877-2024, 2024
Short summary
Short summary
This study investigates the impact of long-term lake-system evolution on the climate signal recorded by glycerol dialkyl glycerol tetraethers (GDGTs), a popular biomarker in paleoclimate research. It compares downcore changes in GDGTs in the 250 000 year sediment sequence of Lake Chala (Kenya/Tanzania) to independent data for lake mixing and water-column chemistry. These factors influence the GDGT proxies in the earliest depositional phases (before ~180 ka), confounding the climate signal.
Jingjing Guo, Martin Ziegler, Louise Fuchs, Youbin Sun, and Francien Peterse
EGUsphere, https://doi.org/10.5194/egusphere-2024-1648, https://doi.org/10.5194/egusphere-2024-1648, 2024
Short summary
Short summary
In this study, we use the distribution of soil bacterial membrane lipids stored on the Chinese Loess Plateau (CLP) to quantitatively reconstruct variations in precipitation amount over the past 130 kyr. The precipitation record shows orbital- and millennial-scale variations and varies at precession and obliquity scale. The application of this precipitation proxy across the CLP indicates a more pronounced spatial gradient during glacials, when the western CLP experiences more arid conditions.
Chris D. Fokkema, Tobias Agterhuis, Danielle Gerritsma, Myrthe de Goeij, Xiaoqing Liu, Pauline de Regt, Addison Rice, Laurens Vennema, Claudia Agnini, Peter K. Bijl, Joost Frieling, Matthew Huber, Francien Peterse, and Appy Sluijs
Clim. Past, 20, 1303–1325, https://doi.org/10.5194/cp-20-1303-2024, https://doi.org/10.5194/cp-20-1303-2024, 2024
Short summary
Short summary
Polar amplification (PA) is a key uncertainty in climate projections. The factors that dominantly control PA are difficult to separate. Here we provide an estimate for the non-ice-related PA by reconstructing tropical ocean temperature variability from the ice-free early Eocene, which we compare to deep-ocean-derived high-latitude temperature variability across short-lived warming periods. We find a PA factor of 1.7–2.3 on 20 kyr timescales, which is somewhat larger than model estimates.
Alison J. Smith, Emi Ito, Natalie Burls, Leon Clarke, Timme Donders, Robert Hatfield, Stephen Kuehn, Andreas Koutsodendris, Tim Lowenstein, David McGee, Peter Molnar, Alexander Prokopenko, Katie Snell, Blas Valero Garcés, Josef Werne, Christian Zeeden, and the PlioWest Working Consortium
Sci. Dril., 32, 61–72, https://doi.org/10.5194/sd-32-61-2023, https://doi.org/10.5194/sd-32-61-2023, 2023
Short summary
Short summary
Western North American contains accessible and under-recognized paleolake records that hold the keys to understanding the drivers of wetter conditions in Pliocene Epoch subtropical drylands worldwide. In a 2021 ICDP workshop, we chose five paleolake basins to study that span 7° of latitude in a unique array able to capture a detailed record of hydroclimate during the Early Pliocene warm period and subsequent Pleistocene cooling. We propose new drill cores for three of these basins.
Frida S. Hoem, Adrián López-Quirós, Suzanna van de Lagemaat, Johan Etourneau, Marie-Alexandrine Sicre, Carlota Escutia, Henk Brinkhuis, Francien Peterse, Francesca Sangiorgi, and Peter K. Bijl
Clim. Past, 19, 1931–1949, https://doi.org/10.5194/cp-19-1931-2023, https://doi.org/10.5194/cp-19-1931-2023, 2023
Short summary
Short summary
We present two new sea surface temperature (SST) records in comparison with available SST records to reconstruct South Atlantic paleoceanographic evolution. Our results show a low SST gradient in the Eocene–early Oligocene due to the persistent gyral circulation. A higher SST gradient in the Middle–Late Miocene infers a stronger circumpolar current. The southern South Atlantic was the coldest region in the Southern Ocean and likely the main deep-water formation location in the Middle Miocene.
Lena Mareike Thöle, Peter Dirk Nooteboom, Suning Hou, Rujian Wang, Senyan Nie, Elisabeth Michel, Isabel Sauermilch, Fabienne Marret, Francesca Sangiorgi, and Peter Kristian Bijl
J. Micropalaeontol., 42, 35–56, https://doi.org/10.5194/jm-42-35-2023, https://doi.org/10.5194/jm-42-35-2023, 2023
Short summary
Short summary
Dinoflagellate cysts can be used to infer past oceanographic conditions in the Southern Ocean. This requires knowledge of their present-day ecologic affinities. We add 66 Antarctic-proximal surface sediment samples to the Southern Ocean data and derive oceanographic conditions at those stations. Dinoflagellate cysts are clearly biogeographically separated along latitudinal gradients of temperature, sea ice, nutrients, and salinity, which allows us to reconstruct these parameters for the past.
Suning Hou, Foteini Lamprou, Frida S. Hoem, Mohammad Rizky Nanda Hadju, Francesca Sangiorgi, Francien Peterse, and Peter K. Bijl
Clim. Past, 19, 787–802, https://doi.org/10.5194/cp-19-787-2023, https://doi.org/10.5194/cp-19-787-2023, 2023
Short summary
Short summary
Neogene climate cooling is thought to be accompanied by increased Equator-to-pole temperature gradients, but mid-latitudes are poorly represented. We use biomarkers to reconstruct a 23 Myr continuous sea surface temperature record of the mid-latitude Southern Ocean. We note a profound mid-latitude cooling which narrowed the latitudinal temperature gradient with the northward expansion of subpolar conditions. We surmise that this reflects the strengthening of the ACC and the expansion of sea ice.
Yord W. Yedema, Francesca Sangiorgi, Appy Sluijs, Jaap S. Sinninghe Damsté, and Francien Peterse
Biogeosciences, 20, 663–686, https://doi.org/10.5194/bg-20-663-2023, https://doi.org/10.5194/bg-20-663-2023, 2023
Short summary
Short summary
Terrestrial organic matter (TerrOM) is transported to the ocean by rivers, where its burial can potentially form a long-term carbon sink. This burial is dependent on the type and characteristics of the TerrOM. We used bulk sediment properties, biomarkers, and palynology to identify the dispersal patterns of plant-derived, soil–microbial, and marine OM in the northern Gulf of Mexico and show that plant-derived OM is transported further into the coastal zone than soil and marine-produced TerrOM.
Frédérique M. S. A. Kirkels, Hugo J. de Boer, Paulina Concha Hernández, Chris R. T. Martes, Marcel T. J. van der Meer, Sayak Basu, Muhammed O. Usman, and Francien Peterse
Biogeosciences, 19, 4107–4127, https://doi.org/10.5194/bg-19-4107-2022, https://doi.org/10.5194/bg-19-4107-2022, 2022
Short summary
Short summary
The distinct carbon isotopic values of C3 and C4 plants are widely used to reconstruct past hydroclimate, where more C3 plants reflect wetter and C4 plants drier conditions. Here we examine the impact of regional hydroclimatic conditions on plant isotopic values in the Godavari River basin, India. We find that it is crucial to identify regional plant isotopic values and consider drought stress, which introduces a bias in C3 / C4 plant estimates and associated hydroclimate reconstructions.
Frédérique M. S. A. Kirkels, Huub M. Zwart, Muhammed O. Usman, Suning Hou, Camilo Ponton, Liviu Giosan, Timothy I. Eglinton, and Francien Peterse
Biogeosciences, 19, 3979–4010, https://doi.org/10.5194/bg-19-3979-2022, https://doi.org/10.5194/bg-19-3979-2022, 2022
Short summary
Short summary
Soil organic carbon (SOC) that is transferred to the ocean by rivers forms a long-term sink of atmospheric CO2 upon burial on the ocean floor. We here test if certain bacterial membrane lipids can be used to trace SOC through the monsoon-fed Godavari River basin in India. We find that these lipids trace the mobilisation and transport of SOC in the wet season but that these lipids are not transferred far into the sea. This suggests that the burial of SOC on the sea floor is limited here.
Carolien M. H. van der Weijst, Koen J. van der Laan, Francien Peterse, Gert-Jan Reichart, Francesca Sangiorgi, Stefan Schouten, Tjerk J. T. Veenstra, and Appy Sluijs
Clim. Past, 18, 1947–1962, https://doi.org/10.5194/cp-18-1947-2022, https://doi.org/10.5194/cp-18-1947-2022, 2022
Short summary
Short summary
The TEX86 proxy is often used by paleoceanographers to reconstruct past sea-surface temperatures. However, the origin of the TEX86 signal in marine sediments has been debated since the proxy was first proposed. In our paper, we show that TEX86 carries a mixed sea-surface and subsurface temperature signal and should be calibrated accordingly. Using our 15-million-year record, we subsequently show how a TEX86 subsurface temperature record can be used to inform us on past sea-surface temperatures.
Carolien M. H. van der Weijst, Josse Winkelhorst, Wesley de Nooijer, Anna von der Heydt, Gert-Jan Reichart, Francesca Sangiorgi, and Appy Sluijs
Clim. Past, 18, 961–973, https://doi.org/10.5194/cp-18-961-2022, https://doi.org/10.5194/cp-18-961-2022, 2022
Short summary
Short summary
A hypothesized link between Pliocene (5.3–2.5 million years ago) global climate and tropical thermocline depth is currently only backed up by data from the Pacific Ocean. In our paper, we present temperature, salinity, and thermocline records from the tropical Atlantic Ocean. Surprisingly, the Pliocene thermocline evolution was remarkably different in the Atlantic and Pacific. We need to reevaluate the mechanisms that drive thermocline depth, and how these are tied to global climate change.
Peter K. Bijl, Joost Frieling, Marlow Julius Cramwinckel, Christine Boschman, Appy Sluijs, and Francien Peterse
Clim. Past, 17, 2393–2425, https://doi.org/10.5194/cp-17-2393-2021, https://doi.org/10.5194/cp-17-2393-2021, 2021
Short summary
Short summary
Here, we use the latest insights for GDGT and dinocyst-based paleotemperature and paleoenvironmental reconstructions in late Cretaceous–early Oligocene sediments from ODP Site 1172 (East Tasman Plateau, Australia). We reconstruct strong river runoff during the Paleocene–early Eocene, a progressive decline thereafter with increased wet/dry seasonality in the northward-drifting hinterland. Our critical review leaves the anomalous warmth of the Eocene SW Pacific Ocean unexplained.
Frida S. Hoem, Isabel Sauermilch, Suning Hou, Henk Brinkhuis, Francesca Sangiorgi, and Peter K. Bijl
J. Micropalaeontol., 40, 175–193, https://doi.org/10.5194/jm-40-175-2021, https://doi.org/10.5194/jm-40-175-2021, 2021
Short summary
Short summary
We use marine microfossil (dinocyst) assemblage data as well as seismic and tectonic investigations to reconstruct the oceanographic history south of Australia 37–20 Ma as the Tasmanian Gateway widens and deepens. Our results show stable conditions with typically warmer dinocysts south of Australia, which contrasts with the colder dinocysts closer to Antarctica, indicating the establishment of modern oceanographic conditions with a strong Southern Ocean temperature gradient and frontal systems.
Frida S. Hoem, Luis Valero, Dimitris Evangelinos, Carlota Escutia, Bella Duncan, Robert M. McKay, Henk Brinkhuis, Francesca Sangiorgi, and Peter K. Bijl
Clim. Past, 17, 1423–1442, https://doi.org/10.5194/cp-17-1423-2021, https://doi.org/10.5194/cp-17-1423-2021, 2021
Short summary
Short summary
We present new offshore palaeoceanographic reconstructions for the Oligocene (33.7–24.4 Ma) in the Ross Sea, Antarctica. Our study of dinoflagellate cysts and lipid biomarkers indicates warm-temperate sea surface conditions. We posit that warm surface-ocean conditions near the continental shelf during the Oligocene promoted increased precipitation and heat delivery towards Antarctica that led to dynamic terrestrial ice sheet volumes in the warmer climate state of the Oligocene.
Appy Sluijs, Joost Frieling, Gordon N. Inglis, Klaas G. J. Nierop, Francien Peterse, Francesca Sangiorgi, and Stefan Schouten
Clim. Past, 16, 2381–2400, https://doi.org/10.5194/cp-16-2381-2020, https://doi.org/10.5194/cp-16-2381-2020, 2020
Short summary
Short summary
We revisit 15-year-old reconstructions of sea surface temperatures in the Arctic Ocean for the late Paleocene and early Eocene epochs (∼ 57–53 million years ago) based on the distribution of fossil membrane lipids of archaea preserved in Arctic Ocean sediments. We find that improvements in the methods over the past 15 years do not lead to different results. However, data quality is now higher and potential biases better characterized. Results confirm remarkable Arctic warmth during this time.
Loes G. J. van Bree, Francien Peterse, Allix J. Baxter, Wannes De Crop, Sigrid van Grinsven, Laura Villanueva, Dirk Verschuren, and Jaap S. Sinninghe Damsté
Biogeosciences, 17, 5443–5463, https://doi.org/10.5194/bg-17-5443-2020, https://doi.org/10.5194/bg-17-5443-2020, 2020
Short summary
Short summary
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are used as a paleothermometer based on their temperature dependence in global soils, but aquatic production complicates their use in lakes. BrGDGTs in the water column of Lake Chala, East Africa, respond to oxygen conditions and mixing. Changes in their signal can be linked to bacterial community composition rather than membrane adaptation to changing conditions. Their integrated signal in the sediment reflects mean air temperature.
Marlow Julius Cramwinckel, Lineke Woelders, Emiel P. Huurdeman, Francien Peterse, Stephen J. Gallagher, Jörg Pross, Catherine E. Burgess, Gert-Jan Reichart, Appy Sluijs, and Peter K. Bijl
Clim. Past, 16, 1667–1689, https://doi.org/10.5194/cp-16-1667-2020, https://doi.org/10.5194/cp-16-1667-2020, 2020
Short summary
Short summary
Phases of past transient warming can be used as a test bed to study the environmental response to climate change independent of tectonic change. Using fossil plankton and organic molecules, here we reconstruct surface ocean temperature and circulation in and around the Tasman Gateway during a warming phase 40 million years ago termed the Middle Eocene Climatic Optimum. We find that plankton assemblages track ocean circulation patterns, with superimposed variability being related to temperature.
Erin L. McClymont, Heather L. Ford, Sze Ling Ho, Julia C. Tindall, Alan M. Haywood, Montserrat Alonso-Garcia, Ian Bailey, Melissa A. Berke, Kate Littler, Molly O. Patterson, Benjamin Petrick, Francien Peterse, A. Christina Ravelo, Bjørg Risebrobakken, Stijn De Schepper, George E. A. Swann, Kaustubh Thirumalai, Jessica E. Tierney, Carolien van der Weijst, Sarah White, Ayako Abe-Ouchi, Michiel L. J. Baatsen, Esther C. Brady, Wing-Le Chan, Deepak Chandan, Ran Feng, Chuncheng Guo, Anna S. von der Heydt, Stephen Hunter, Xiangyi Li, Gerrit Lohmann, Kerim H. Nisancioglu, Bette L. Otto-Bliesner, W. Richard Peltier, Christian Stepanek, and Zhongshi Zhang
Clim. Past, 16, 1599–1615, https://doi.org/10.5194/cp-16-1599-2020, https://doi.org/10.5194/cp-16-1599-2020, 2020
Short summary
Short summary
We examine the sea-surface temperature response to an interval of climate ~ 3.2 million years ago, when CO2 concentrations were similar to today and the near future. Our geological data and climate models show that global mean sea-surface temperatures were 2.3 to 3.2 ºC warmer than pre-industrial climate, that the mid-latitudes and high latitudes warmed more than the tropics, and that the warming was particularly enhanced in the North Atlantic Ocean.
Carolien Maria Hendrina van der Weijst, Josse Winkelhorst, Anna von der Heydt, Gert-Jan Reichart, Francesca Sangiorgi, and Appy Sluijs
Clim. Past Discuss., https://doi.org/10.5194/cp-2020-105, https://doi.org/10.5194/cp-2020-105, 2020
Manuscript not accepted for further review
Jingjing Guo, Miriam Glendell, Jeroen Meersmans, Frédérique Kirkels, Jack J. Middelburg, and Francien Peterse
Biogeosciences, 17, 3183–3201, https://doi.org/10.5194/bg-17-3183-2020, https://doi.org/10.5194/bg-17-3183-2020, 2020
Short summary
Short summary
The fluxes of soil organic carbon (OC) transport from land to sea are poorly constrained, mostly due to the lack of a specific tracer for soil OC. Here we evaluate the use of specific molecules derived from soil bacteria as a tracer for soil OC in a small river catchment. We find that the initial soil signal is lost upon entering the aquatic environment. However, the local environmental history of the catchment is reflected by these molecules in the lake sediments that act as their sink.
Emily Dearing Crampton-Flood, Lars J. Noorbergen, Damian Smits, R. Christine Boschman, Timme H. Donders, Dirk K. Munsterman, Johan ten Veen, Francien Peterse, Lucas Lourens, and Jaap S. Sinninghe Damsté
Clim. Past, 16, 523–541, https://doi.org/10.5194/cp-16-523-2020, https://doi.org/10.5194/cp-16-523-2020, 2020
Short summary
Short summary
The mid-Pliocene warm period (mPWP; 3.3–3.0 million years ago) is thought to be the last geological interval with similar atmospheric carbon dioxide concentrations as the present day. Further, the mPWP was 2–3 °C warmer than present, making it a good analogue for estimating the effects of future climate change. Here, we construct a new precise age model for the North Sea during the mPWP, and provide a detailed reconstruction of terrestrial and marine climate using a multi-proxy approach.
Charlotte Miller, Jemma Finch, Trevor Hill, Francien Peterse, Marc Humphries, Matthias Zabel, and Enno Schefuß
Clim. Past, 15, 1153–1170, https://doi.org/10.5194/cp-15-1153-2019, https://doi.org/10.5194/cp-15-1153-2019, 2019
Short summary
Short summary
Here we reconstruct vegetation and precipitation, in eastern South Africa, over the last 32 000 years, by measuring the stable carbon and hydrogen isotope composition of plant waxes from Mfabeni peat bog (KwaZulu-Natal). Our results indicate that the late Quaternary climate in eastern South Africa did not respond directly to orbital forcing or to changes in sea-surface temperatures. Our findings stress the influence of the Southern Hemisphere westerlies in driving climate change in the region.
Thomas M. Hoyle, Manuel Sala-Pérez, and Francesca Sangiorgi
J. Micropalaeontol., 38, 55–65, https://doi.org/10.5194/jm-38-55-2019, https://doi.org/10.5194/jm-38-55-2019, 2019
Short summary
Short summary
Morphology of dinoflagellate cysts (which are valuable tools in deciphering past environmental and climate changes) depends not only on genetics, but also on a range of environmental factors. We review frequently occurring (Black Sea) morphotypes and propose use of matrices to record gradual variation between endmember forms as a pragmatic approach until cyst–theca studies and genetic sequencing can demonstrate relationships between genetically and environmentally controlled morphotypes.
Loeka L. Jongejans, Jens Strauss, Josefine Lenz, Francien Peterse, Kai Mangelsdorf, Matthias Fuchs, and Guido Grosse
Biogeosciences, 15, 6033–6048, https://doi.org/10.5194/bg-15-6033-2018, https://doi.org/10.5194/bg-15-6033-2018, 2018
Short summary
Short summary
Arctic warming mobilizes belowground organic matter in northern high latitudes. This study focused on the size of organic carbon pools and organic matter quality in ice-rich permafrost on the Baldwin Peninsula, West Alaska. We analyzed biogeochemistry and found that three-quarters of the carbon is stored in degraded permafrost deposits. Nonetheless, using biomarker analyses, we showed that the organic matter in undisturbed yedoma permafrost has a higher potential for decomposition.
Julian D. Hartman, Peter K. Bijl, and Francesca Sangiorgi
J. Micropalaeontol., 37, 445–497, https://doi.org/10.5194/jm-37-445-2018, https://doi.org/10.5194/jm-37-445-2018, 2018
Short summary
Short summary
We present an extensive overview of the organic microfossil remains found at Site U1357, Adélie Basin, East Antarctica. The organic microfossil remains are exceptionally well preserved and are derived from unicellular as well as higher organisms. We provide a morphological description, photographic images, and a discussion of the ecological preferences of the biological species from which the organic remains were derived.
Julian D. Hartman, Francesca Sangiorgi, Ariadna Salabarnada, Francien Peterse, Alexander J. P. Houben, Stefan Schouten, Henk Brinkhuis, Carlota Escutia, and Peter K. Bijl
Clim. Past, 14, 1275–1297, https://doi.org/10.5194/cp-14-1275-2018, https://doi.org/10.5194/cp-14-1275-2018, 2018
Short summary
Short summary
We reconstructed sea surface temperatures for the Oligocene and Miocene periods (34–11 Ma) based on archaeal lipids from a site close to the Wilkes Land coast, Antarctica. Our record suggests generally warm to temperate surface waters: on average 17 °C. Based on the lithology, glacial and interglacial temperatures could be distinguished, showing an average 3 °C offset. The long-term temperature trend resembles the benthic δ18O stack, which may have implications for ice volume reconstructions.
Peter K. Bijl, Alexander J. P. Houben, Julian D. Hartman, Jörg Pross, Ariadna Salabarnada, Carlota Escutia, and Francesca Sangiorgi
Clim. Past, 14, 1015–1033, https://doi.org/10.5194/cp-14-1015-2018, https://doi.org/10.5194/cp-14-1015-2018, 2018
Short summary
Short summary
We document Southern Ocean surface ocean conditions and changes therein during the Oligocene and Miocene (34–10 Myr ago). We infer profound long-term and short-term changes in ice-proximal oceanographic conditions: sea surface temperature, nutrient conditions and sea ice. Our results point to warm-temperate, oligotrophic, ice-proximal oceanographic conditions. These distinct oceanographic conditions may explain the high amplitude in inferred Oligocene–Miocene Antarctic ice volume changes.
Ariadna Salabarnada, Carlota Escutia, Ursula Röhl, C. Hans Nelson, Robert McKay, Francisco J. Jiménez-Espejo, Peter K. Bijl, Julian D. Hartman, Stephanie L. Strother, Ulrich Salzmann, Dimitris Evangelinos, Adrián López-Quirós, José Abel Flores, Francesca Sangiorgi, Minoru Ikehara, and Henk Brinkhuis
Clim. Past, 14, 991–1014, https://doi.org/10.5194/cp-14-991-2018, https://doi.org/10.5194/cp-14-991-2018, 2018
Short summary
Short summary
Here we reconstruct ice sheet and paleoceanographic configurations in the East Antarctic Wilkes Land margin based on a multi-proxy study conducted in late Oligocene (26–25 Ma) sediments from IODP Site U1356. The new obliquity-forced glacial–interglacial sedimentary model shows that, under the high CO2 values of the late Oligocene, ice sheets had mostly retreated to their terrestrial margins and the ocean was very dynamic with shifting positions of the polar fronts and associated water masses.
Julie Lattaud, Frédérique Kirkels, Francien Peterse, Chantal V. Freymond, Timothy I. Eglinton, Jens Hefter, Gesine Mollenhauer, Sergio Balzano, Laura Villanueva, Marcel T. J. van der Meer, Ellen C. Hopmans, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 4147–4161, https://doi.org/10.5194/bg-15-4147-2018, https://doi.org/10.5194/bg-15-4147-2018, 2018
Short summary
Short summary
Long-chain diols (LCDs) are biomarkers that occur widespread in marine environments and also in lakes and rivers. In this study, we looked at the distribution of LCDs in three river systems (Godavari, Danube, and Rhine) in relation to season, precipitation, and temperature. We found out that the LCDs are likely being produced in calm areas of the river systems and that marine LCDs have a different distribution than riverine LCDs.
Muhammed Ojoshogu Usman, Frédérique Marie Sophie Anne Kirkels, Huub Michel Zwart, Sayak Basu, Camilo Ponton, Thomas Michael Blattmann, Michael Ploetze, Negar Haghipour, Cameron McIntyre, Francien Peterse, Maarten Lupker, Liviu Giosan, and Timothy Ian Eglinton
Biogeosciences, 15, 3357–3375, https://doi.org/10.5194/bg-15-3357-2018, https://doi.org/10.5194/bg-15-3357-2018, 2018
Timme H. Donders, Niels A. G. M. van Helmond, Roel Verreussel, Dirk Munsterman, Johan ten Veen, Robert P. Speijer, Johan W. H. Weijers, Francesca Sangiorgi, Francien Peterse, Gert-Jan Reichart, Jaap S. Sinninghe Damsté, Lucas Lourens, Gesa Kuhlmann, and Henk Brinkhuis
Clim. Past, 14, 397–411, https://doi.org/10.5194/cp-14-397-2018, https://doi.org/10.5194/cp-14-397-2018, 2018
Short summary
Short summary
The buildup and melting of ice during the early glaciations in the Northern Hemisphere, around 2.5 million years ago, were far shorter in duration than during the last million years. Based on molecular compounds and microfossils from sediments dating back to the early glaciations we show that the temperature on land and in the sea changed simultaneously and was a major factor in the ice buildup in the Northern Hemisphere. These data provide key insights into the dynamics of early glaciations.
Joost Frieling, Emiel P. Huurdeman, Charlotte C. M. Rem, Timme H. Donders, Jörg Pross, Steven M. Bohaty, Guy R. Holdgate, Stephen J. Gallagher, Brian McGowran, and Peter K. Bijl
J. Micropalaeontol., 37, 317–339, https://doi.org/10.5194/jm-37-317-2018, https://doi.org/10.5194/jm-37-317-2018, 2018
Short summary
Short summary
The hothouse climate of the early Paleogene and the associated violent carbon cycle perturbations are of particular interest to understanding current and future global climate change. Using dinoflagellate cysts and stable carbon isotope analyses, we identify several significant events, e.g., the Paleocene–Eocene Thermal Maximum in sedimentary deposits from the Otway Basin, SE Australia. We anticipate that this study will facilitate detailed climate reconstructions west of the Tasmanian Gateway.
Sabine Prader, Ulrich Kotthoff, Francine M.G. McCarthy, Gerhard Schmiedl, Timme H. Donders, and David R. Greenwood
Biogeosciences Discuss., https://doi.org/10.5194/bg-2017-511, https://doi.org/10.5194/bg-2017-511, 2018
Manuscript not accepted for further review
Short summary
Short summary
The observed palaeovegetation movement signals probably correspond to several glacial phases of the middle Oligocene and Early Miocene and might be best reflected within peaks of the conifer forests. Glacial phases exposed shallow shelf areas and allowed the spreading of substrate-depending forest formations. Temperature estimates revealing relative stable humid warm temperate conditions. A Sporadic occurred extinct taxon widens the understanding of its distribution pattern during the Cenozoic.
Peter K. Bijl, Alexander J. P. Houben, Anja Bruls, Jörg Pross, and Francesca Sangiorgi
J. Micropalaeontol., 37, 105–138, https://doi.org/10.5194/jm-37-105-2018, https://doi.org/10.5194/jm-37-105-2018, 2018
Short summary
Short summary
In order to use ocean sediments as a recorder of past oceanographic changes, a critical first step is to stratigraphically date the sediments. The absence of microfossils with known stratigraphic ranges has always hindered dating of Southern Ocean sediments. Here we tie dinocyst ranges to the international timescale in a well-dated sediment core from offshore Antarctica. With this, we can now use dinocysts as a biostratigraphic tool in otherwise stratigraphically poorly dated sediments.
Stephanie L. Strother, Ulrich Salzmann, Francesca Sangiorgi, Peter K. Bijl, Jörg Pross, Carlota Escutia, Ariadna Salabarnada, Matthew J. Pound, Jochen Voss, and John Woodward
Biogeosciences, 14, 2089–2100, https://doi.org/10.5194/bg-14-2089-2017, https://doi.org/10.5194/bg-14-2089-2017, 2017
Short summary
Short summary
One of the main challenges in Antarctic vegetation reconstructions is the uncertainty in unambiguously identifying reworked pollen and spore assemblages in marine sedimentary records influenced by waxing and waning ice sheets. This study uses red fluorescence and digital imaging as a new tool to identify reworking in a marine sediment core from circum-Antarctic waters to reconstruct Cenozoic climate change and vegetation with high confidence.
Bernd Wagner, Thomas Wilke, Alexander Francke, Christian Albrecht, Henrike Baumgarten, Adele Bertini, Nathalie Combourieu-Nebout, Aleksandra Cvetkoska, Michele D'Addabbo, Timme H. Donders, Kirstin Föller, Biagio Giaccio, Andon Grazhdani, Torsten Hauffe, Jens Holtvoeth, Sebastien Joannin, Elena Jovanovska, Janna Just, Katerina Kouli, Andreas Koutsodendris, Sebastian Krastel, Jack H. Lacey, Niklas Leicher, Melanie J. Leng, Zlatko Levkov, Katja Lindhorst, Alessia Masi, Anna M. Mercuri, Sebastien Nomade, Norbert Nowaczyk, Konstantinos Panagiotopoulos, Odile Peyron, Jane M. Reed, Eleonora Regattieri, Laura Sadori, Leonardo Sagnotti, Björn Stelbrink, Roberto Sulpizio, Slavica Tofilovska, Paola Torri, Hendrik Vogel, Thomas Wagner, Friederike Wagner-Cremer, George A. Wolff, Thomas Wonik, Giovanni Zanchetta, and Xiaosen S. Zhang
Biogeosciences, 14, 2033–2054, https://doi.org/10.5194/bg-14-2033-2017, https://doi.org/10.5194/bg-14-2033-2017, 2017
Short summary
Short summary
Lake Ohrid is considered to be the oldest existing lake in Europe. Moreover, it has a very high degree of endemic biodiversity. During a drilling campaign at Lake Ohrid in 2013, a 569 m long sediment sequence was recovered from Lake Ohrid. The ongoing studies of this record provide first important information on the environmental and evolutionary history of the lake and the reasons for its high endimic biodiversity.
Wim Westerhoff, Timme Donders, and Stefan Luthi
Sci. Dril., 21, 47–51, https://doi.org/10.5194/sd-21-47-2016, https://doi.org/10.5194/sd-21-47-2016, 2016
Short summary
Short summary
The CONOSC (COring the NOrth Sea Cenozoic) project brings scientists together that aim at scientific drilling of the north-western European marginal seas where in the last 65 million years the influence of sea and land was recorded continuously in the sediments. The subsiding area is ideally suited for detailed study of the relations between changing climate, biodiversity, and changing land masses. The report discusses the ICDP workshop outcome and overall project aims.
Aleksandra Cvetkoska, Elena Jovanovska, Alexander Francke, Slavica Tofilovska, Hendrik Vogel, Zlatko Levkov, Timme H. Donders, Bernd Wagner, and Friederike Wagner-Cremer
Biogeosciences, 13, 3147–3162, https://doi.org/10.5194/bg-13-3147-2016, https://doi.org/10.5194/bg-13-3147-2016, 2016
Laura Sadori, Andreas Koutsodendris, Konstantinos Panagiotopoulos, Alessia Masi, Adele Bertini, Nathalie Combourieu-Nebout, Alexander Francke, Katerina Kouli, Sébastien Joannin, Anna Maria Mercuri, Odile Peyron, Paola Torri, Bernd Wagner, Giovanni Zanchetta, Gaia Sinopoli, and Timme H. Donders
Biogeosciences, 13, 1423–1437, https://doi.org/10.5194/bg-13-1423-2016, https://doi.org/10.5194/bg-13-1423-2016, 2016
Short summary
Short summary
Lake Ohrid (FYROM/Albania) is the deepest, largest and oldest lake in Europe. To understand the climatic and environmental evolution of its area, a palynological study was undertaken for the last 500 ka. We found a correspondence between forested/non-forested periods and glacial-interglacial cycles of marine isotope stratigraphy. Our record shows a progressive change from cooler and wetter to warmer and dryer interglacial conditions. This shift is also visible in glacial vegetation.
F. Peterse, C. M. Moy, and T. I. Eglinton
Biogeosciences, 12, 933–943, https://doi.org/10.5194/bg-12-933-2015, https://doi.org/10.5194/bg-12-933-2015, 2015
Related subject area
Palynology
Stepwise Oligocene–Miocene breakdown of subpolar gyres and strengthening of the Antarctic Circumpolar Current
Chitinozoan biostratigraphy through the Aeronian–Telychian boundary interval on Anticosti Island, Canada
High Arctic late Paleocene and early Eocene dinoflagellate cysts
Palsys.org: an open-access taxonomic and stratigraphic database of organic-walled dinoflagellate cysts
Miocene Climatic Optimum fungal record and plant-based CREST climatic reconstruction from southern McMurdo Sound, Antarctica
An expanded database of Southern Hemisphere surface sediment dinoflagellate cyst assemblages and their oceanographic affinities
Late Eocene–early Miocene evolution of the southern Australian subtropical front: a marine palynological approach
Desmocysta hadra, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology
New species of the dinoflagellate cyst genus Svalbardella Manum, 1960, emend. from the Paleogene and Neogene of the northern high to middle latitudes
Organic-walled dinoflagellate cyst biostratigraphy of the upper Eocene to lower Oligocene Yazoo Formation, US Gulf Coast
Early Oligocene dinocysts as a tool for palaeoenvironment reconstruction and stratigraphical framework – a case study from a North Sea well
Chemotaxonomy of domesticated grasses: a pathway to understanding the origins of agriculture
Where should we draw the lines between dinocyst “species”? Morphological continua in Black Sea dinocysts
Record of Early to Middle Eocene paleoenvironmental changes from lignite mines, western India
A review of the ecological affinities of marine organic microfossils from a Holocene record offshore of Adélie Land (East Antarctica)
Stratigraphic calibration of Oligocene–Miocene organic-walled dinoflagellate cysts from offshore Wilkes Land, East Antarctica, and a zonation proposal
Frida S. Hoem, Karlijn van den Broek, Adrián López-Quirós, Suzanna H. A. van de Lagemaat, Steve M. Bohaty, Claus-Dieter Hillenbrand, Robert D. Larter, Tim E. van Peer, Henk Brinkhuis, Francesca Sangiorgi, and Peter K. Bijl
J. Micropalaeontol., 43, 497–517, https://doi.org/10.5194/jm-43-497-2024, https://doi.org/10.5194/jm-43-497-2024, 2024
Short summary
Short summary
The timing and impact of onset of Antarctic Circumpolar Current (ACC) on climate and Antarctic ice are unclear. We reconstruct late Eocene to Miocene southern Atlantic surface ocean environment using microfossil remains of dinoflagellates (dinocysts). Our dinocyst records shows the breakdown of subpolar gyres in the late Oligocene and the transition into a modern-like oceanographic regime with ACC flow, established frontal systems, Antarctic proximal cooling, and sea ice by the late Miocene.
Carolina Klock, André Desrochers, Patrick I. McLaughlin, Poul Emsbo, Tim De Backer, Fien M. Jonckheere, Cristiana J. P. Esteves, and Thijs R. A. Vandenbroucke
J. Micropalaeontol., 43, 475–495, https://doi.org/10.5194/jm-43-475-2024, https://doi.org/10.5194/jm-43-475-2024, 2024
Short summary
Short summary
Anticosti Island has a well-preserved rock succession throughout the Aeronian–Telychian boundary in the Llandovery Epoch, Silurian period, which includes two important biogeochemical events, the late Aeronian and the Valgu. This study suggests the position of this boundary in Anticosti based on the correlation of the island’s chitinozoan assemblages with the global occurrences, confirming both a remarkable preservation of upper Aeronian rocks and the record of the Valgu event.
Appy Sluijs and Henk Brinkhuis
J. Micropalaeontol., 43, 441–474, https://doi.org/10.5194/jm-43-441-2024, https://doi.org/10.5194/jm-43-441-2024, 2024
Short summary
Short summary
We present intrinsic details of dinocyst taxa and assemblages from the sole available central Arctic late Paleocene–early Eocene sedimentary succession recovered at the central Lomonosov Ridge by the Integrated Ocean Drilling Program (IODP) Expedition 302. We develop a pragmatic taxonomic framework, document critical biostratigraphic events, and propose two new genera and seven new species.
Peter K. Bijl and Henk Brinkhuis
J. Micropalaeontol., 42, 309–314, https://doi.org/10.5194/jm-42-309-2023, https://doi.org/10.5194/jm-42-309-2023, 2023
Short summary
Short summary
We developed an online, open-access database for taxonomic descriptions, stratigraphic information and images of organic-walled dinoflagellate cyst species. With this new resource for applied and academic research, teaching and training, we open up organic-walled dinoflagellate cysts for the academic era of open science. We expect that palsys.org represents a starting point to improve taxonomic concepts, and we invite the community to contribute.
Mallory Pilie, Martha E. Gibson, Ingrid C. Romero, Noelia B. Nuñez Otaño, Matthew J. Pound, Jennifer M. K. O'Keefe, and Sophie Warny
J. Micropalaeontol., 42, 291–307, https://doi.org/10.5194/jm-42-291-2023, https://doi.org/10.5194/jm-42-291-2023, 2023
Short summary
Short summary
The ANDRILL SMS site provides the first Middle Miocene Antarctic fungal record. The CREST plant-based paleoclimate reconstructions confirm an intensification of the hydrological cycle during the MCO, with the Ross Sea region reconstructed 279 % wetter than modern conditions and a maximum mean annual temperature of 10.3 °C for the warmest intervals of the MCO. The plant-based reconstructions indicate a temperate, no dry season with a warm summer (Cfb) Köppen–Geiger climate classification.
Lena Mareike Thöle, Peter Dirk Nooteboom, Suning Hou, Rujian Wang, Senyan Nie, Elisabeth Michel, Isabel Sauermilch, Fabienne Marret, Francesca Sangiorgi, and Peter Kristian Bijl
J. Micropalaeontol., 42, 35–56, https://doi.org/10.5194/jm-42-35-2023, https://doi.org/10.5194/jm-42-35-2023, 2023
Short summary
Short summary
Dinoflagellate cysts can be used to infer past oceanographic conditions in the Southern Ocean. This requires knowledge of their present-day ecologic affinities. We add 66 Antarctic-proximal surface sediment samples to the Southern Ocean data and derive oceanographic conditions at those stations. Dinoflagellate cysts are clearly biogeographically separated along latitudinal gradients of temperature, sea ice, nutrients, and salinity, which allows us to reconstruct these parameters for the past.
Frida S. Hoem, Isabel Sauermilch, Suning Hou, Henk Brinkhuis, Francesca Sangiorgi, and Peter K. Bijl
J. Micropalaeontol., 40, 175–193, https://doi.org/10.5194/jm-40-175-2021, https://doi.org/10.5194/jm-40-175-2021, 2021
Short summary
Short summary
We use marine microfossil (dinocyst) assemblage data as well as seismic and tectonic investigations to reconstruct the oceanographic history south of Australia 37–20 Ma as the Tasmanian Gateway widens and deepens. Our results show stable conditions with typically warmer dinocysts south of Australia, which contrasts with the colder dinocysts closer to Antarctica, indicating the establishment of modern oceanographic conditions with a strong Southern Ocean temperature gradient and frontal systems.
Manuel Vieira and Salih Mahdi
J. Micropalaeontol., 39, 155–167, https://doi.org/10.5194/jm-39-155-2020, https://doi.org/10.5194/jm-39-155-2020, 2020
Short summary
Short summary
This paper describes a new species of the genus Desmocysta from the Late Cretaceous in the Norwegian Sea. The short stratigraphic range for this new species makes it a good biostratigraphic marker. The available published data also indicate that this genus is restricted to higher latitudes in the Northern Hemisphere and is suggested to have preferred turbid waters and stressed marine environments.
Kasia K. Śliwińska and Martin J. Head
J. Micropalaeontol., 39, 139–154, https://doi.org/10.5194/jm-39-139-2020, https://doi.org/10.5194/jm-39-139-2020, 2020
Short summary
Short summary
We described two new species of the fossil dinoflagellate cyst genus Svalbardella. S. clausii sp. nov. has a narrow range in the lowermost Chattian and may be related to cooler surface waters. S. kareniae sp. nov. ranges from Lower Oligocene to Lower Miocene and favours more open marine conditions.
Our study illustrates the close phylogenetic relationship between Svalbardella and Palaeocystodinium and shows that surface ornamentation and the tabulation are variable features within both genera.
Marcelo Augusto De Lira Mota, Guy Harrington, and Tom Dunkley Jones
J. Micropalaeontol., 39, 1–26, https://doi.org/10.5194/jm-39-1-2020, https://doi.org/10.5194/jm-39-1-2020, 2020
Short summary
Short summary
New high-resolution microfossil record from a clay succession in the US Gulf Coastal Plain reveal more accurate age estimates for the critical Eocene–Oligocene transition (EOT), a global climate event marked by the rapid expansion of the first permanent Antarctic ice sheet 34 million years ago. These data suggest a coeval major increase in sedimentation rate. Future isotopic and palaeoecological work on this core can be more precisely integrated with other global records of the EOT.
Kasia K. Śliwińska
J. Micropalaeontol., 38, 143–176, https://doi.org/10.5194/jm-38-143-2019, https://doi.org/10.5194/jm-38-143-2019, 2019
Short summary
Short summary
This study provides an age model based on dinocysts for the early Oligocene succession from the North Sea. The changes in the dinocysts assemblage show that the succession was deposited in a proximal and dynamic environment. Furthermore, the results suggests that the early icehouse climate played an important role in the depositional development of the Oligocene succession in the North Sea basin.
Phillip E. Jardine, William D. Gosling, Barry H. Lomax, Adele C. M. Julier, and Wesley T. Fraser
J. Micropalaeontol., 38, 83–95, https://doi.org/10.5194/jm-38-83-2019, https://doi.org/10.5194/jm-38-83-2019, 2019
Short summary
Short summary
Many major food crops, including rice, wheat, maize, rye, barley, oats and millet, are domesticated species of grass. However, because grass pollen all looks highly similar, it has been challenging to track grass domestication using pollen in archaeological samples. Here, we show that we can use the chemical signature of pollen grains to classify different grass species. This approach has the potential to help unravel the spread of domestication and agriculture over the last 10 000 years.
Thomas M. Hoyle, Manuel Sala-Pérez, and Francesca Sangiorgi
J. Micropalaeontol., 38, 55–65, https://doi.org/10.5194/jm-38-55-2019, https://doi.org/10.5194/jm-38-55-2019, 2019
Short summary
Short summary
Morphology of dinoflagellate cysts (which are valuable tools in deciphering past environmental and climate changes) depends not only on genetics, but also on a range of environmental factors. We review frequently occurring (Black Sea) morphotypes and propose use of matrices to record gradual variation between endmember forms as a pragmatic approach until cyst–theca studies and genetic sequencing can demonstrate relationships between genetically and environmentally controlled morphotypes.
Sonal Khanolkar and Jyoti Sharma
J. Micropalaeontol., 38, 1–24, https://doi.org/10.5194/jm-38-1-2019, https://doi.org/10.5194/jm-38-1-2019, 2019
Short summary
Short summary
We carried out comparative analyses of multiple microfossil groups like foraminifera, dinoflagellates, pollen and spores from Early and Middle Eocene lignite mine sections from paleotropical sites of the Cambay, Kutch and Barmer basins of western India in order to record the changes in paleovegetation and paleodepositional conditions during the hot and humid climate.
Julian D. Hartman, Peter K. Bijl, and Francesca Sangiorgi
J. Micropalaeontol., 37, 445–497, https://doi.org/10.5194/jm-37-445-2018, https://doi.org/10.5194/jm-37-445-2018, 2018
Short summary
Short summary
We present an extensive overview of the organic microfossil remains found at Site U1357, Adélie Basin, East Antarctica. The organic microfossil remains are exceptionally well preserved and are derived from unicellular as well as higher organisms. We provide a morphological description, photographic images, and a discussion of the ecological preferences of the biological species from which the organic remains were derived.
Peter K. Bijl, Alexander J. P. Houben, Anja Bruls, Jörg Pross, and Francesca Sangiorgi
J. Micropalaeontol., 37, 105–138, https://doi.org/10.5194/jm-37-105-2018, https://doi.org/10.5194/jm-37-105-2018, 2018
Short summary
Short summary
In order to use ocean sediments as a recorder of past oceanographic changes, a critical first step is to stratigraphically date the sediments. The absence of microfossils with known stratigraphic ranges has always hindered dating of Southern Ocean sediments. Here we tie dinocyst ranges to the international timescale in a well-dated sediment core from offshore Antarctica. With this, we can now use dinocysts as a biostratigraphic tool in otherwise stratigraphically poorly dated sediments.
Cited articles
Barbour, M. G. and Billings, W. D.: North American terrestrial vegetation, Cambridge University Press, ISBN: 0521559863, 9780521559867, 2000.
Beaudouin, C., Suc, J.-P., Escarguel, G., Arnaud, M., and Charmasson, S.: The significance of pollen signal in present-day marine terrigenous sediments: the example of the Gulf of Lions (western Mediterranean Sea), Geobios, 40, 159–172, https://doi.org/10.1016/j.geobios.2006.04.003, 2007.
Behrenfeld, M. J. and Falkowski, P. G.: Photosynthetic rates derived from satellite-based chlorophyll concentration, Limnol. Oceanogr., 42, 1–20, https://doi.org/10.4319/lo.1997.42.1.0001, 1997.
Benninghoff, W. S.: Calculation of pollen and spore density in sediments by addition of exotic pollen in known quantities, Science, 106, 325–326, 1962.
Birks, H. J. B.: Contributions of Quaternary botany to modern ecology and biogeography, Plant Ecol. Div., 12, 189–385, https://doi.org/10.1080/17550874.2019.1646831, 2019.
Bogus, K., Mertens, K. N., Lauwaert, J., Harding, I. C., Vrielinck, H., Zonneveld, K. A., and Versteegh, G. J.: Differences in the chemical composition of organic-walled dinoflagellate resting cysts from phototrophic and heterotrophic dinoflagellates, J. Phycol., 50, 254–266, https://doi.org/10.1111/jpy.12170, 2014.
Brown, A., Carpenter, R., and Walling, D.: Monitoring fluvial pollen transport, its relationship to catchment vegetation and implications for palaeoenvironmental studies, Rev. Palaeobot. Palyno., 147, 60–76, https://doi.org/10.1016/j.revpalbo.2007.06.005, 2007.
Brush, G. S. and Brush, L. M.: Transport of pollen in a sediment-laden channel; a laboratory study, Am. J. Sci., 272, 359–381, https://doi.org/10.2475/ajs.272.4.359, 1972.
Brush, G. S. and DeFries, R. S.: Spatial distributions of pollen in surface sediments of the Potomac estuary 1, Limnol. Oceanogr., 26, 295–309, https://doi.org/10.4319/lo.1981.26.2.0295, 1981.
Bujak, J. P.: Cenozoic dinoflagellate cysts and acritarchs from the Bering Sea and northern North Pacific, DSDP Leg 19, Micropaleontology, 30, 180–212, https://doi.org/10.2307/1485717, 1984.
Chaloner, W. and Muir, M.: Spores and floras, in: Coal and Coal bearing strata, edited by: Westoll, T. S. and Murchison, D. G., Oliver and Boyd Ltd., Edinburgh, Vol. 14, 127–146, 1968.
Chmura, G. L. and Liu, K.-B.: Pollen in the lower Mississippi River, Rev. Palaeobot. Palyno., 64, 253–261, https://doi.org/10.1016/0034-6667(90)90140-E, 1990.
Chmura, G. L., Smirnov, A., and Campbell, I. D.: Pollen transport through distributaries and depositional patterns in coastal waters, Palaeogeogr. Palaeocl., 149, 257–270, https://doi.org/10.1016/S0031-0182(98)00205-3, 1999.
Cochrane, J. D. and Kelly, F. J.: Low-frequency circulation on the Texas-Louisiana continental shelf, J. Geophys. Res., 91, 10645, https://doi.org/10.1029/JC091iC09p10645, 1986.
Cohen, M. C. L., Rossetti, D. de F., Pessenda, L. C. R., Friaes, Y. S., and de Oliveira, P. E.: Late Pleistocene glacial forest of Humaitá – Western Amazonia, Palaeogeogr. Palaeocl., 415, 37–47, https://doi.org/10.1016/j.palaeo.2013.12.025, 2014.
Coleman, J. M., Roberts, H. H., and Stone, G. W.: Mississippi River delta: an overview, J. Coast. Res., 14, 699–716, 1998.
Conner, W. H., Day, J. W., Baumann, R. H., and Randall, J. M.: Influence of hurricanes on coastal ecosystems along the northern Gulf of Mexico, Wetl. Ecol. Manag., 1, 45–56, https://doi.org/10.1007/BF00177889, 1989.
Coussin, V., Penaud, A., Combourieu-Nebout, N., Peyron, O., Schmidt, S., Zaragosi, S., de Vernal, A., and Babonneau, N.: Distribution of modern dinocysts and pollen in the western Mediterranean Sea (Algerian margin and Gulf of Lion), Mar. Micropaleontol., 175, 102157, https://doi.org/10.1016/j.marmicro.2022.102157, 2022.
Couvillion, B. R., Barras, J. A., Steyer, G. D., Sleavin, W., Fischer, M., Beck, H., Trahan, N., Griffin, B., and Heckman, D.: Land area change in coastal Louisiana from 1932 to 2010: U.S. Geological Survey Scientific Investigations Map 3164, scale 1:265 000, 12 pp., 2011.
Dai, L., Weng, C., Lu, J., and Mao, L.: Pollen quantitative distribution in marine and fluvial surface sediments from the northern South China Sea: new insights into pollen transportation and deposition mechanisms, Quaternary Int., 325, 136–149, https://doi.org/10.1016/j.quaint.2013.09.031, 2014.
Dale, B.: Dinoflagellate cyst ecology: modeling and geological applications, Palynology: Principles and Applications, American Association of Stratigraphic Palynologists Foundation, Dallas, edited by: Jansonius, J. and McGregor, DC, 1249–1275, ISBN 0-931871-03-4, 1996.
Dale, B.: Eutrophication signals in the sedimentary record of dinoflagellate cysts in coastal waters, J. Sea Res., 61, 103–113, https://doi.org/10.1016/j.seares.2008.06.007, 2009.
Dale, B., Dale, A. L., and Jansen, J. F.: Dinoflagellate cysts as environmental indicators in surface sediments from the Congo deep-sea fan and adjacent regions, Palaeogeogr. Palaeocl., 185, 309–338, https://doi.org/10.1016/S0031-0182(02)00380-2, 2002.
Day, R., Michot, T., Twilley, R., and From, A.: Geographic distribution of black mangrove (Avicennia germinans) in coastal Louisiana in 2009, US Geoglogical Survey data release, https://doi.org/10.5066/P9RC8EIE, 2020.
Delcourt, P. A. and Delcourt, H. R.: Late Quaternary paleoclimates and biotic responses in eastern North America and the western North Atlantic Ocean, Palaeogeogr. Palaeocl., 48, 263–284, https://doi.org/10.1016/0031-0182(84)90048-8, 1984.
Delcourt, P. A. and Delcourt, H. R.: Quaternary paleoecology of the Lower Mississippi Valley, Eng. Geol., 45, 219–242, https://doi.org/10.1016/S0013-7952(96)00015-4, 1996.
De Vernal, A., Giroux, L., and Hillaire-Marcel, C.: Distribution des palynomorphes et flux de matière organique dans un milieu de transition, Exemple de L'estuaire et du golfe du Saint-Laurent, Palynosciences, 1, 145–157, 1991.
de Vernal, A.: Marine palynology and its use for studying nearshore environments, IOP Conference Series: Earth and Environmental Science, Vol. 5, From Deep-Sea To Coastal Zones: Methods And Techniques For Studying Paleoenvironments, 25–29 February 2008, Faro, Portugal, 012002, https://doi.org/10.1088/1755-1307/5/1/012002, 2009.
de Vernal, A. and Marret, F.: Chapter nine organic-walled dinoflagellate cysts: tracers of sea-surface conditions, Dev. Mar. Geol., 1, 371–408, https://doi.org/10.1016/S1572-5480(07)01014-7, 2007.
de Vernal, A., Radi, T., Zaragosi, S., Van Nieuwenhove, N., Rochon, A., Allan, E., De Schepper, S., Eynaud, F., Head, M. J., Limoges, A., Londeix, L., Marret, F., Matthiessen, J., Penaud, A., Pospelova, V., Price, A., and Richerol, T.: Distribution of common modern dinoflagellate cyst taxa in surface sediments of the Northern Hemisphere in relation to environmental parameters: The new n=1968 database, Mar. Micropaleontol., 159, 101796, https://doi.org/10.1016/j.marmicro.2019.101796, 2020.
Donders, T. H., Van Helmond, N. A., Verreussel, R., Munsterman, D., ten Veen, J., Speijer, R. P., Weijers, J. W., Sangiorgi, F., Peterse, F., and Reichart, G.-J.: Land–sea coupling of early Pleistocene glacial cycles in the southern North Sea exhibit dominant Northern Hemisphere forcing, Clim. Past, 14, 397–411, https://doi.org/10.5194/cp-14-397-2018, 2018.
Edwards, L. and Willard, D.: Dinoflagellate cysts and pollen from sediment samples, Mississippi Sound and Gulf of Mexico, Stratigraphic Framework of the Neogene and Quaternary Sediments of the Mississippi Coastal Zone, Jackson County, Mississippi, US Geological Survey Open-file Report, 1–415, 2001.
Florin, R.: The distribution of conifer and taxad genera in time and space, Acta Horti Bergiani, 20, 121–324, 1963.
Garcia, H., Weathers, K., Paver, C., Smolyar, I., Boyer, T., Locarnini, M., Zweng, M., Mishonov, A., Baranova, O., and Seidov, D.: World ocean atlas 2018, Vol. 4, Dissolved inorganic nutrients (phosphate, nitrate and nitrate + nitrite, silicate), NOAA Atlas NESDIS, 84, 35 pp., https://archimer.ifremer.fr/doc/00651/76336/ (last access: 24 November 2023), 2019a.
Garcia, H., Weathers, K., Paver, C., Smolyar, I., Boyer, T., Locarnini, M., Zweng, M., Mishonov, A., Baranova, O., and Seidov, D.: World Ocean Atlas 2018, Vol. 3, Dissolved Oxygen, Apparent Oxygen Utilization, and Dissolved Oxygen Saturation, NOAA Atlas NESDIS, 83, 38 pp., https://archimer.ifremer.fr/doc/00651/76337/ (last access: 24 November 2023), 2019b.
Godhe, A. and McQuoid, M. R.: Influence of benthic and pelagic environmental factors on the distribution of dinoflagellate cysts in surface sediments along the Swedish west coast, Aquat. Microb. Ecol., 32, 185–201, https://doi.org/10.3354/ame032185, 2003.
Goñi, M. A., Gordon, E. S., Monacci, N. M., Clinton, R., Gisewhite, R., Allison, M. A., and Kineke, G.: The effect of Hurricane Lili on the distribution of organic matter along the inner Louisiana shelf (Gulf of Mexico, USA), Cont. Shelf Res., 26, 2260–2280, https://doi.org/10.1016/j.csr.2006.07.017, 2006.
Gray, D. D., Zonneveld, K. A., and Versteegh, G. J.: Species-specific sensitivity of dinoflagellate cysts to aerobic degradation: A five-year natural exposure experiment, Rev. Palaeobot. Palyno., 247, 175–187, https://doi.org/10.1016/j.revpalbo.2017.09.002, 2017.
Groot, J. J. and Groot, C. R.: Marine palynology: possibilities, limitations, problems, Mar. Geol., 4, 387–395, https://doi.org/10.1016/0025-3227(66)90007-7, 1966.
Head, M.: Modern dinoflagellate cysts and their biological affinities, Palynology, 3, 1197–1248, https://doi.org/10.2307/1485834, 1996.
Heusser, L.: Pollen in Santa Barbara Basin, California: a 12,000-yr record, Geol. Soc. Am. Bull., 89, 673–678, https://doi.org/10.1130/0016-7606(1978)89<673:PISBBC>2.0.CO;2, 1978.
Heusser, L. E.: Pollen distribution in the bottom sediments of the western North Atlantic Ocean, Mar. Micropaleontol., 8, 77–88, https://doi.org/10.1016/0377-8398(83)90006-3, 1983.
Heusser, L. E.: Pollen distribution in marine sediments on the continental margin off northern California, Mar. Geol., 80, 131–147, https://doi.org/10.1016/0025-3227(88)90076-X, 1988.
Hill, M. O. and Gauch, H. G.: Detrended correspondence analysis: an improved ordination technique, Classification and ordination: Symposium on advances in vegetation science, Nijmegen, the Netherlands, May 1979, 47–58, https://doi.org/10.1007/978-94-009-9197-2_7, 1980.
Hooghiemstra, H.: Palynological records from northwest African marine sediments: a general outline of the interpretation of the pollen signal, Philos. T. R. Soc. Lond. B, 318, 431–449, https://doi.org/10.1098/rstb.1988.0018, 1988.
Hooghiemstra, H., Lézine, A.-M., Leroy, S. A., Dupont, L., and Marret, F.: Late Quaternary palynology in marine sediments: a synthesis of the understanding of pollen distribution patterns in the NW African setting, Quaternary Int., 148, 29–44, https://doi.org/10.1016/j.quaint.2005.11.005, 2006.
Hopkins, J. S.: Differential flotation and deposition of coniferous and deciduous tree pollen, Ecology, 31, 633–641, 1950.
Hoppenrath, M., Elbrächter, M., and Drebes, G.: Marine phytoplankton, ISBN 978-3-510-61392-2, 2009.
Iria, G.-M., Costas, S. V., García-Gil, S., and Sobrino, C. M.: Organic-walled dinoflagellate cyst assemblages in surface sediments of the Ría de Vigo (Atlantic margin of NW Iberia) in relation to environmental gradients, Mar. Micropaleontol., 18, 102217, https://doi.org/10.1016/j.marmicro.2023.102217, 2023.
Jacobson, D. M. and Anderson, D. M.: Thecate heterophic dinoflagellates: feeding behavior and mechanisms 1, J. Phycol., 22, 249–258, https://doi.org/10.1111/j.1529-8817.1986.tb00021.x, 1986.
Jasper, J. P. and Gagosian, R. B.: The sources and deposition of organic matter in the Late Quaternary Pigmy Basin, Gulf of Mexico, Geochim. Cosmochim. Ac., 54, 1117–1132, https://doi.org/10.1016/0016-7037(90)90443-O, 1990.
Jeong, H. J., Yoo, Y. D., Kim, J. S., Seong, K. A., Kang, N. S., and Kim, T. H.: Growth, feeding and ecological roles of the mixotrophic and heterotrophic dinoflagellates in marine planktonic food webs, Ocean Sci. J., 45, 65–91, https://doi.org/10.1007/s12601-010-0007-2, 2010.
Kiage, L. M.: A 1200-year history of environmental changes in Bay Jimmy area, coastal Louisiana, USA, Holocene, 30, 201–209, https://doi.org/10.1177/0959683619875801, 2020.
Lambert, C., Penaud, A., Poirier, C., and Goubert, E.: Distribution of modern dinocysts in surface sediments of southern Brittany (NW France) in relation to environmental parameters: Implications for paleoreconstructions, Rev. Palaeobot. Palyno., 297, 104578, https://doi.org/10.1016/j.revpalbo.2021.104578, 2022.
Legendre, P. and Birks, H. J. B.: From classical to canonical ordination, Tracking environmental change using lake sediments: Data handling and numerical techniques, 201–248, https://doi.org/10.1007/978-94-007-2745-8_8, 2012.
Leroy, S. A., Marret, F., Gibert, E., Chalié, F., Reyss, J.-L., and Arpe, K.: River inflow and salinity changes in the Caspian Sea during the last 5500 years, Quaternary Sci. Rev., 26, 3359–3383, https://doi.org/10.1016/j.quascirev.2007.09.012, 2007.
Li, Z., Pospelova, V., Liu, L., Zhou, R., and Song, B.: High-resolution palynological record of Holocene climatic and oceanographic changes in the northern South China Sea, Palaeogeogr. Palaeoclimatol., 483, 94–124, https://doi.org/10.1016/j.palaeo.2017.03.009, 2017.
Lieux, M.: An atlas of pollen of trees, shrubs, and woody vines of Louisiana and other southeastern States, Part 1, Ginkgoaceae to Lauraceae, Pollen Spores, 22, 17–57, 1980.
Limoges, A., Londeix, L., and de Vernal, A.: Organic-walled dinoflagellate cyst distribution in the Gulf of Mexico, Mar. Micropaleontol., 102, 51–68, https://doi.org/10.1016/j.marmicro.2013.06.002, 2013.
Limoges, A., de Vernal, A., and Van Nieuwenhove, N.: Long-term hydrological changes in the northeastern Gulf of Mexico (ODP-625B) during the Holocene and late Pleistocene inferred from organic-walled dinoflagellate cysts, Palaeogeogr. Palaeocl., 414, 178–191, https://doi.org/10.1016/j.palaeo.2014.08.019, 2014.
Locarnini, R. A., Mishonov, A. V., Antonov, J. I., Boyer, T. P., Garcia, H. E., Baranova, O. K., Zweng, M. M., Paver, C. R., Reagan, J. R., Johnson, D. R., Hamilton, M., and Seidov, D.: World Ocean Atlas 2013, Vol. 1, Temperature, edited by: Levitus, S., Technical edited by: A. Mishonov, NOAA Atlas NESDIS 73, 40 pp., 2013.
Lohrenz, S. E., Dagg, M. J., and Whitledge, T. E.: Enhanced primary production at the plume/oceanic interface of the Mississippi River, Cont. Shelf Res., 10, 639–664, https://doi.org/10.1016/0278-4343(90)90043-L, 1990.
Lohrenz, S. E., Fahnenstiel, G. L., Redalje, D. G., Lang, G. A., Dagg, M. J., Whitledge, T. E., and Dortch, Q.: Nutrients, irradiance, and mixing as factors regulating primary production in coastal waters impacted by the Mississippi River plume, Cont. Shelf Res., 19, 1113–1141, https://doi.org/10.1016/S0278-4343(99)00012-6, 1999.
Luo, C., Chen, M., Xiang, R., Liu, J., Zhang, L., Lu, J., and Yang, M.: Modern pollen distribution in marine sediments from the northern part of the South China Sea, Mar. Micropaleontol., 108, 41–56, https://doi.org/10.1016/j.marmicro.2014.03.001, 2014.
Marret, F., Bradley, L. R., Tarasov, P. E., Ivanova, E. V., Zenina, M. A., and Murdmaa, I. O.: The Holocene history of the NE Black Sea and surrounding areas: An integrated record of marine and terrestrial palaeoenvironmental change, Holocene, 29, 648–661, https://doi.org/10.1177/0959683618824769, 2019.
Matsuoka, K.: Eutrophication process recorded in dinoflagellate cyst assemblages – a case of Yokohama Port, Tokyo Bay, Japan, Sci. Total Environ., 231, 17–35, https://doi.org/10.1016/S0048-9697(99)00087-X, 1999.
Matsuoka, K., Joyce, L. B., Kotani, Y., and Matsuyama, Y.: Modern dinoflagellate cysts in hypertrophic coastal waters of Tokyo Bay, Japan, J. Plank. Res., 25, 1461–1470, 2003.
McCarthy, F. M. and Mudie, P. J.: Oceanic pollen transport and pollen: dinocyst ratios as markers of late Cenozoic sea level change and sediment transport, Palaeogeogr. Palaeocl., 138, 187–206, 1998.
Mertens, K. N., Gu, H., Takano, Y., Price, A. M., Pospelova, V., Bogus, K., Versteegh, G. J. M., Marret, F., Turner, R. E., Rabalais, N. N., and Matsuoka, K.: The cyst-theca relationship of the dinoflagellate cyst Trinovantedinium pallidifulvum, with erection of Protoperidinium lousianensis sp. nov. and their phylogenetic position within the Conica group, Palynology, 41, 183–202, https://doi.org/10.1080/01916122.2016.1147219, 2017.
Milliman, J. D. and Syvitski, J. P. M.: Geomorphic/Tectonic Control of Sediment Discharge to the Ocean: The Importance of Small Mountainous Rivers, J. Geol., 100, 525–544, https://doi.org/10.1086/629606, 1992.
Montero-Serrano, J. C., Bout-Roumazeilles, V., Tribovillard, N., Sionneau, T., Riboulleau, A., Bory, A., and Flower, B.: Sedimentary evidence of deglacial megafloods in the northern Gulf of Mexico (Pigmy Basin), Quaternary Sci. Rev., 28, 3333–3347, https://doi.org/10.1016/j.quascirev.2009.09.011, 2009.
Mudie, P.: Pollen distribution in recent marine sediments, eastern Canada, Can. J. Earth Sci., 19, 729–747, https://doi.org/10.1139/e82-062, 1982.
Mudie, P. J. and McCarthy, F. M.: Marine palynology: potentials for onshore – offshore correlation of Pleistocene – Holocene records, T. Roy. Soc. S. Afr., 61, 139–157, https://doi.org/10.1080/00359190609519964, 2006.
Mudie, P. J. and McCarthy, F. M. G.: Late quaternary pollen transport processes, western North Atlantic: Data from box models, cross-margin and N-S transects, Mar. Geol., 118, 79–105, https://doi.org/10.1016/0025-3227(94)90114-7, 1994.
Mudie, P. J., Yanko-Hombach, V. V., and Mudryk, I.: Palynomorphs in surface sediments of the North-Western Black Sea as indicators of environmental conditions, Quaternary Int., 590, 122–145, https://doi.org/10.1016/j.quaint.2020.05.014, 2021.
Muller, J.: Palynology of Recent Orinoco delta and shelf sediments; reports of the Orinoco shelf expedition, Micropaleontology, 5, 1–32, https://doi.org/10.2307/1484153, 1959.
Munoz Sobrino, C., García-Gil, S., Iglesias, J., Martinez Carreno, N., Ferreiro Da Costa, J., Diaz Varela, R. A., and Judd, A.: Environmental change in the R ía de V igo, NW I beria, since the mid-H olocene: new palaeoecological and seismic evidence, Boreas, 41, 578–601, https://doi.org/10.1111/j.1502-3885.2012.00255.x, 2012.
Nyman, J. A., Reid, C. S., Sasser, C. E., Linscombe, J., Hartley, S. B., Couvillion, B. R., and Villani, R. K.: Vegetation Types in Coastal Louisiana in 2021 (ver. 2.0, April 2023): US Geological Survey data release, https://doi.org/10.5066/P9URYLMS, 2021.
Oksanen, J., Blanchet, F. G., Kindt, R., Legendre, P., Minchin, P. R., O'hara, R., Simpson, G. L., Solymos, P., Stevens, M. H. H., and Wagner, H.: Package “vegan”, Community ecology package, version, 2, 1–295, 2013.
Omernik, J. M. and Griffith, G. E.: Ecoregions of the conterminous United States: evolution of a hierarchical spatial framework, Environ. Manag., 54, 1249–1266, https://doi.org/10.1007/s00267-014-0364-1, 2014.
Pieńkowski, A. J., Mudie, P. J., England, J. H., Smith, J. N., and Furze, M. F.: Late Holocene environmental conditions in Coronation Gulf, southwestern Canadian Arctic Archipelago: evidence from dinoflagellate cysts, other non-pollen palynomorphs, and pollen, J. Quaternary Sci., 26, 839–853, https://doi.org/10.1002/jqs.1503, 2011.
Pieñkowski, G. and Waksmundzka, M.: Palynofacies in Lower Jurassic epicontinental deposits of Poland: tool to interpret sedimentary environments, Episod. J. Int. Geosci., 32, 21–32, https://doi.org/10.18814/epiiugs/2009/v32i1/004, 2009.
Price, A. M., Baustian, M. M., Turner, R. E., Rabalais, N. N., and Chmura, G. L.: Melitasphaeridium choanophorum – a living fossil dinoflagellate cyst in the Gulf of Mexico, Palynology, 41, 351–358, https://doi.org/10.1080/01916122.2016.1205676, 2017.
Price, A. M., Baustian, M. M., Turner, R. E., Rabalais, N. N., and Chmura, G. L.: Dinoflagellate Cysts Track Eutrophication in the Northern Gulf of Mexico, Estuar. Coast., 41, 1322–1336, https://doi.org/10.1007/s12237-017-0351-x, 2018.
Pross, J. and Brinkhuis, H.: Organic-walled dinoflagellate cysts as paleoenvironmental indicators in the Paleogene; a synopsis of concepts, Palaontol. Z., 79, 53–59, https://doi.org/10.1007/BF03021753, 2005.
Rabalais, N. N. and Turner, R. E.: Gulf of Mexico hypoxia: Past, present, and future, Limnol. Oceanogr. Bull., 28, 117–124, https://doi.org/10.1002/lob.10351, 2019.
Rabalais, N. N., Turner, R. E., and Scavia, D.: Beyond Science into Policy: Gulf of Mexico Hypoxia and the Mississippi River, BioScience, 52, 129–142, https://doi.org/10.1641/0006-3568(2002)052[0129:BSIPGO]2.0.CO;2, 2002.
Rabalais, N. N., Turner, R. E., Sen Gupta, B. K., Boesch, D. F., Chapman, P., and Murrell, M. C.: Hypoxia in the northern Gulf of Mexico: Does the science support the Plan to Reduce, Mitigate, and Control Hypoxia?, Estuar. Coast., 30, 753–772, https://doi.org/10.1007/BF02841332, 2007.
Radi, T. and de Vernal, A.: Dinocysts as proxy of primary productivity in mid–high latitudes of the Northern Hemisphere, Mar. Micropaleontol., 68, 84–114, https://doi.org/10.1016/j.marmicro.2008.01.012, 2008.
Radi, T., Pospelova, V., de Vernal, A., and Barrie, J. V.: Dinoflagellate cysts as indicators of water quality and productivity in British Columbia estuarine environments, Mar. Micropaleontol., 62, 269–297, https://doi.org/10.1016/j.marmicro.2006.09.002, 2007.
Ramírez-Valencia, V., Paez-Reyes, M., Salgado, J., Sangiorgi, F., Zúñiga-González, A. C., Amézquita, A., Ibarra-Ávila, H., and González-Arango, C.: Distribution of organic-walled dinoflagellate cysts in surface sediments of the southern Caribbean and the eastern tropical Pacific and its environmental implications, Mar. Micropaleontol., 167, 102000, https://doi.org/10.1016/j.marmicro.2021.102000, 2021.
Reuss, M.: Designing the bayous: The control of water in the Atchafalaya Basin, 1800–1995, Texas A&M University Press, https://doi.org/10.2307/27649250, 2004.
Rochon, A. and Vernal, A. de: Palynomorph distribution in recent sediments from the Labrador Sea, Can. J. Earth Sci., 31, 115–127, https://doi.org/10.1139/e94-010, 1994.
Rochon, A., Vernal, A. de, Turon, J.-L., Matthiessen, J., and Head, M. J.: Distribution of recent dinoflagellate cysts in surface sediments from the North Atlantic Ocean and adjacent seas in relation to sea-surface parameters, American Association of Stratigraphic Palynologists Contribution Series, 35, 1–146, 1999.
Ryu, J., Liu, K., Bianchette, T. A., and McCloskey, T.: Identifying forcing agents of environmental change and ecological response on the Mississippi River Delta, Southeastern Louisiana, Sci. Total Environ., 794, 148730, https://doi.org/10.1016/j.scitotenv.2021.148730, 2021.
Sampere, T. P., Bianchi, T. S., Wakeham, S. G., and Allison, M. A.: Sources of organic matter in surface sediments of the Louisiana Continental margin: effects of major depositional/transport pathways and Hurricane Ivan, Cont. Shelf Res., 28, 2472–2487, https://doi.org/10.1016/j.csr.2008.06.009, 2008.
Sangiorgi, F. and Donders, T. H.: Reconstructing 150 years of eutrophication in the north-western Adriatic Sea (Italy) using dinoflagellate cysts, pollen and spores, Estuar. Coast. Shelf Sci., 60, 69–79, https://doi.org/10.1016/j.ecss.2003.12.001, 2004.
Schiller, R., Kourafalou, V., Hogan, P., and Walker, N.: The dynamics of the Mississippi River plume: Impact of topography, wind and offshore forcing on the fate of plume waters, J. Geophys. Res.-Ocean., 116, C06029, https://doi.org/10.1029/2010JC006883, 2011.
Sturges, W. and Evans, J.: On the variability of the Loop Current in the Gulf of Mexico, J. Mar. Res., 41, 639–653, https://doi.org/10.1357/002224083788520487, 1983.
Sun, X. and Li, X.: Different dynamics and routes of modern pollen transport in the northern and southern parts of the South China Sea, Sci. China Ser. D, 41, 57–61, https://doi.org/10.1007/BF02932421, 1998.
Sun, X., Li, X., and Beug, H.-J.: Pollen distribution in hemipelagic surface sediments of the South China Sea and its relation to modern vegetation distribution, Mar. Geol., 156, 211–226, https://doi.org/10.1016/S0025-3227(98)00180-7, 1999.
Thöle, L. M., Nooteboom, P. D., Hou, S., Wang, R., Nie, S., Michel, E., Sauermilch, I., Marret, F., Sangiorgi, F., and Bijl, P. K.: An expanded database of Southern Hemisphere surface sediment dinoflagellate cyst assemblages and their oceanographic affinities, J. Micropalaeontol., 42, 35–56, https://doi.org/10.5194/jm-42-35-2023, 2023.
Tian, H., Xu, R., Pan, S., Yao, Y., Bian, Z., Cai, W., Hopkinson, C. S., Justic, D., Lohrenz, S., and Lu, C.: Long-term trajectory of nitrogen loading and delivery from Mississippi River Basin to the Gulf of Mexico, Global Biogeochem. Cy., 34, e2019GB006475, https://doi.org/10.1029/2019GB006475, 2020.
Tribovillard, N.-P. and Gorin, G. E.: Organic facies of the early Albian Niveau Paquier, a key black shales horizon of the Marnes Bleues formation in the Vocontian Trough (Subalpine Ranges, SE France), Palaeogeogr. Palaeocl., 85, 227–237, https://doi.org/10.1016/0031-0182(91)90162-K, 1991.
van Helmond, N. A., Hennekam, R., Donders, T. H., Bunnik, F. P., de Lange, G. J., Brinkhuis, H., and Sangiorgi, F.: Marine productivity leads organic matter preservation in sapropel S1: palynological evidence from a core east of the Nile River outflow, Quaternary Sci. Rev., 108, 130–138, https://doi.org/10.1016/j.quascirev.2014.11.014, 2015.
van Soelen, E. E., Lammertsma, E. I., Cremer, H., Donders, T. H., Sangiorgi, F., Brooks, G. R., Larson, R. A., Sinninghe Damsté, J. S., Wagner-Cremer, F., and Reichart, G. J.: Late Holocene sea-level rise in Tampa Bay: Integrated reconstruction using biomarkers, pollen, organic-walled dinoflagellate cysts, and diatoms, Estuar. Coast. Shelf Sci., 86, 216–224, https://doi.org/10.1016/j.ecss.2009.11.010, 2010.
Versteegh, G. J. M., Zonneveld, K. A. F., and de Lange, G. J.: Selective aerobic and anaerobic degradation of lipids and palynomorphs in the Eastern Mediterranean since the onset of sapropel S1 deposition, Mar. Geol., 278, 177–192, https://doi.org/10.1016/j.margeo.2010.10.007, 2010.
Walker, N. D., Wiseman Jr., W. J., Rouse Jr., L. J., and Babin, A.: Effects of river discharge, wind stress, and slope eddies on circulation and the satellite-observed structure of the Mississippi River plume, J. Coast. Res., 21, 1228–1244, https://doi.org/10.2112/04-0347.1, 2005.
Wall, D. and Dale, B.: The “Hystrichosphaerid” resting spore of the dinoflagellate Pyrodinium bahamense, Platf, 1906, J. Phycol., 5, 140–149, https://doi.org/10.1111/j.1529-8817.1969.tb02595.x, 1969.
Willard, D. A., Bernhardt, C. E., Weimer, L., Cooper, S. R., Gamez, D., and Jensen, J.: Atlas of pollen and spores of the Florida Everglades, Palynology, 28, 175–227, https://doi.org/10.2113/28.1.175, 2004.
Williams, G., Fensome, R., and McRae, R.: The Lentin and Williams Index of Fossil Dinoflagellates, 2017 Edn., American Association of Stratigraphic Palynologists Foundation , Contribution Series, AASP Contributions Series Number 48, ISSN 0160-8843, 2017.
Wood, G.: Palynological techniques-processing and microscopy, Chap. 3, in: Palynology: Principles and Application, American association of stratigraphic palynologists foundation, edited by: Jasonius, J. and McGregor, D. C., Dallas, TX, 1, 29–50, 1996.
Yao, Q., Liu, K., Aragón-Moreno, A. A., Rodrigues, E., Xu, Y. J., and Lam, N. S.: A 5200-year paleoecological and geochemical record of coastal environmental changes and shoreline fluctuations in southwestern Louisiana: Implications for coastal sustainability, Geomorphology, 365, 107284, https://doi.org/10.1016/j.geomorph.2020.107284, 2020.
Yedema, Y. W., Sangiorgi, F., Sluijs, A., Sinninghe Damsté, J. S., and Peterse, F.: Soil-, fluvial-, plant- and marine derived organic carbon from surface sediments (0–2 cm) from the northern Gulf of Mexico, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.944838, 2022.
Yedema, Y. W., Sangiorgi, F., Sluijs, A., Sinninghe Damsté, J. S., and Peterse, F.: The dispersal of fluvially discharged and marine, shelf-produced particulate organic matter in the northern Gulf of Mexico, Biogeosciences, 20, 663–686, https://doi.org/10.5194/bg-20-663-2023, 2023.
Zheng, Z., Yang, S., Deng, Y., Huang, K., Wei, J., Berne, S., and Suc, J.-P.: Pollen record of the past 60 ka BP in the Middle Okinawa Trough: Terrestrial provenance and reconstruction of the paleoenvironment, Palaeogeogr. Palaeocl., 307, 285–300, https://doi.org/10.1016/j.palaeo.2011.05.026, 2011.
Zonneveld, K. A. and Pospelova, V.: A determination key for modern dinoflagellate cysts, Palynology, 39, 387–409, https://doi.org/10.1080/01916122.2014.990115, 2015.
Zonneveld, K. A., Versteegh, G. J., and de Lange, G. J.: Palaeoproductivity and post-depositional aerobic organic matter decay reflected by dinoflagellate cyst assemblages of the Eastern Mediterranean S1 sapropel, Mar. Geol., 172, 181–195, https://doi.org/10.1016/S0025-3227(00)00134-1, 2001.
Zonneveld, K. A., Versteegh, G., and Kodrans-Nsiah, M.: Preservation and organic chemistry of Late Cenozoic organic-walled dinoflagellate cysts: A review, Mar. Micropaleontol., 68, 179–197, https://doi.org/10.1016/j.marmicro.2008.01.015, 2008.
Zonneveld, K. A., Chen, L., Möbius, J., and Mahmoud, M. S.: Environmental significance of dinoflagellate cysts from the proximal part of the Po-river discharge plume (off southern Italy, Eastern Mediterranean), J. Sea Res., 62, 189–213, https://doi.org/10.1016/j.seares.2009.02.003, 2009.
Zonneveld, K. A. F., Versteegh, G. J. M., Kasten, S., Eglinton, T. I., Emeis, K.-C., Huguet, C., Koch, B. P., de Lange, G. J., de Leeuw, J. W., Middelburg, J. J., Mollenhauer, G., Prahl, F. G., Rethemeyer, J., and Wakeham, S. G.: Selective preservation of organic matter in marine environments; processes and impact on the sedimentary record, Biogeosciences, 7, 483–511, https://doi.org/10.5194/bg-7-483-2010, 2010.
Zonneveld, K. A. F., Marret, F., Versteegh, G. J. M., Bogus, K., Bonnet, S., Bouimetarhan, I., Crouch, E., de Vernal, A., Elshanawany, R., Edwards, L., Esper, O., Forke, S., Grøsfjeld, K., Henry, M., Holzwarth, U., Kielt, J.-F., Kim, S.-Y., Ladouceur, S., Ledu, D., Chen, L., Limoges, A., Londeix, L., Lu, S.-H., Mahmoud, M. S., Marino, G., Matsouka, K., Matthiessen, J., Mildenhal, D. C., Mudie, P., Neil, H. L., Pospelova, V., Qi, Y., Radi, T., Richerol, T., Rochon, A., Sangiorgi, F., Solignac, S., Turon, J.-L., Verleye, T., Wang, Y., Wang, Z., and Young, M.: Atlas of modern dinoflagellate cyst distribution based on 2405 data points, Rev. Palaeobot. Palyno., 191, 1–197, https://doi.org/10.1016/j.revpalbo.2012.08.003, 2013.
Zweng, M., Seidov, D., Boyer, T., Locarnini, M., Garcia, H., Mishonov, A., Baranova, O., Weathers, K., Paver, C., and Smolyar, I.: World ocean atlas 2018, Vol. 2, Salinity, NOAA Atlas NESDIS 82, 50 pp., https://archimer.ifremer.fr/doc/00651/76339/ (last access: 24 November 2023), 2019.
Zwiep, K. L., Hennekam, R., Donders, T. H., Van Helmond, N. A., De Lange, G. J., and Sangiorgi, F.: Marine productivity, water column processes and seafloor anoxia in relation to Nile discharge during sapropels S1 and S3, Quaternary Sci. Rev., 200, 178–190, https://doi.org/10.1016/j.quascirev.2018.08.026, 2018.
Short summary
The pollen and dinoflagellate cyst content of 21 surface sediments from the northern Gulf of Mexico is used to test the applicability of three palynological ratios (heterotroph/autotroph, pollen/dinocyst, and pollen/bisaccate ratio) as proxies for marine productivity and distance to the coast/river. Redundancy analysis confirms the suitability of these three ratios, where the H/A ratio can be used as an indicator of primary production, and the P/B ratio best tracks the distance to the coast.
The pollen and dinoflagellate cyst content of 21 surface sediments from the northern Gulf of...
