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3. Seasonal, annual, and inter-annual Spiniferites cyst production: a review of sediment trap studies

Author

Andrea M. Price, Vera Pospelova, Karin A F Zonneveld, Kazumi Matsuoka, Svetlana Esenkulova, Manuel Bringué, and Maija Heikkilä

Subjects
Total organic carbon, 010506 paleontology, 010504 meteorology & atmospheric sciences, biology, Estuarine sediments, Dinoflagellate, Northern Hemisphere, Paleontology, Sediment trap (geology), medicine.disease, biology.organism_classification, 01 natural sciences, Oceanography, Genus, parasitic diseases, medicine, Environmental science, Cyst, 14. Life underwater, human activities, 0105 earth and related environmental sciences
Abstract

Despite the fact that dinoflagellate cysts of the diverse genus Spiniferites are abundant in coastal and estuarine sediments worldwide, little is known about patterns of their seasonal or annual pr...

Published
2018
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4. High resolution dinoflagellate cyst record of environmental change in Effingham Inlet (British Columbia, Canada) over the last millennium

Author

Terri Lacourse, Randolph J. Enkin, Vera Pospelova, Stephen E. Calvert, Tara Ivanochko, and Manuel Bringué

Subjects
010506 paleontology, geography, Varve, geography.geographical_feature_category, 010504 meteorology & atmospheric sciences, biology, Dinoflagellate, Paleontology, Fjord, Seismite, Oceanography, biology.organism_classification, 01 natural sciences, Facies, Paleoclimatology, Sedimentary rock, Glacial period, Ecology, Evolution, Behavior and Systematics, Geology, 0105 earth and related environmental sciences, Earth-Surface Processes
Abstract

We present a high resolution sedimentary record of dinoflagellate cysts spanning the last ~ 900 years recovered from Effingham Inlet, a glacial fjord on the west coast of Vancouver Island, Canada. The combination of seasonal coastal upwelling supporting high levels of marine primary productivity in surface waters, together with restricted bottom water circulation in the silled fjord, fosters the preservation of laminated sediments in the inner basin of Effingham Inlet. Geochemical data are used to assess the sedimentary facies of the core, which is composed primarily of laminated units (50.2%) occasionally interrupted by “seismites” (39.5%) and homogenous units (10.2%). The chronology of the ~ 2 m-long core is based on varve counting and fifteen 14C dates, and is anchored by a seismite previously dated at AD 1946. The dinoflagellate cyst assemblages are diverse (total of 47 taxa), abundant (average concentrations of 102,900 cyst g− 1 of dry sediment), and characterized by a proportionally equal contribution of autotrophic and heterotrophic cyst taxa in most samples. Overall, cyst assemblages are characterized by Operculodinium centrocarpum (36.2%) accompanied by Brigantedinium spp. (18.0%) and Dubridinium spp. (6.6%). Multivariate analyses are used to extract the dominant patterns of variability in autotrophic and heterotrophic dinoflagellate cyst assemblages separately, and help in identifying the temperature and primary productivity gradients encoded in the cyst sedimentary record in this particular estuary. Specific intervals identified in the dinoflagellate cyst record are interpreted to represent the local expression of the “Medieval Climate Anomaly” (from the base of the record, ~ AD 1090 to 1230), the “Little Ice Age” (~ AD 1230 to late 19th century) and warming in the second half of the 20th century. The timing of these intervals are consistent with the regional paleoclimate and help constrain past climatic and oceanographic variability on the west coast of Vancouver Island. The origin of homogenous units in the sedimentary record of Effingham Inlet and paleoseismicity in the region are also discussed.

Published
2016
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5. The dinoflagellate cyst genera Achomosphaera Evitt 1963 and Spiniferites Mantell 1850 in Pliocene to modern sediments: a summary of round table discussions

Author

Marianne Ellegaard, Kenneth Neil Mertens, Serdar Uzar, Nicolas Van Nieuwenhove, Sofia Ribeiro, Kara Bogus, Manuel Bringué, Vera Pospelova, Stijn De Schepper, Barrie Dale, Sophie Warny, Michael Schreck, Stephen Louwye, Laurent Londeix, Maija Heikkilä, André Rochon, Andrea M. Price, Haifeng Gu, Anne de Vernal, Francesca Sangiorgi, Hilal Aydin, Martin J. Head, Vladimir Torres, Arjen Grothe, Karin A F Zonneveld, Kazumi Matsuoka, Gerard J M Versteegh, Peta J. Mudie, Edwige Masure, Aurélie Penaud, Fabienne Marret, Audrey Limoges, Pieter Gurdebeke, Station de Biologie Marine de Concarneau, Direction générale déléguée à la Recherche, à l’Expertise, à la Valorisation et à l’Enseignement-Formation (DGD.REVE), Muséum national d'Histoire naturelle (MNHN)-Muséum national d'Histoire naturelle (MNHN), Centre de recherche sur la dynamique du système Terre (GEOTOP), Université de Montréal (UdeM)-McGill University = Université McGill [Montréal, Canada]-École Polytechnique de Montréal (EPM)-Concordia University [Montreal]-Université du Québec à Rimouski (UQAR)-Université du Québec à Montréal = University of Québec in Montréal (UQAM)-Université du Québec en Abitibi-Témiscamingue (UQAT), Department of Plant and Environmental Sciences [Copenhagen], Faculty of Science [Copenhagen], University of Copenhagen = Københavns Universitet (KU)-University of Copenhagen = Københavns Universitet (KU), Marine Palynology and Palaeoceanography, Utrecht University [Utrecht], Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Department of Geography, University of Liverpool, Paléobiodiversité et paléoenvironnements, Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire Géosciences Océan (LGO), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences de la MER de Rimouski (ISMER), Université du Québec à Rimouski (UQAR), Faculty of Geosciences [Utrecht], Louisiana State University (LSU), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Marine palynology and palaeoceanography, Marine Palynology, Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, Concarneau CEDEX, France, Department of Geoscience, Aarhus University, Aarhus, Denmark, Department of Geology, Ghent University, Ghent, Belgium, Biology Department, Faculty of Sciences and Arts, Celal Bayar University, Manisa, Turkey, International Ocean Discovery Program, Texas A&M University, College Station, TX, United States, School of the Earth, Ocean and Environment, University of South Carolina, Columbia, SC, United States, School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada, Geosciences Department, University of Oslo, Oslo, Norway, Uni Research Climate, Bjerknes Centre for Climate Research, Bergen, Norway, Département des sciences de la Terre et de l’Atmosphère, Geotop, Université du Québec à Montréal, Montreal, Canada, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark, Marine Palynology and Paleoceanography, Laboratory of Palaeobotany and Palynology, Department of Earth Sciences, Faculty of Geosciences, Utrecht University, Utrecht, Netherlands, Third Institute of Oceanography, SOA, Xiamen, China, Department of Earth Sciences, Brock University, St. Catharines, ON, Canada, Environmental Change Research Unit, Department of Environmental Sciences, University of Helsinki, Finland, Department of Glaciology and Climate, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark, Université de Bordeaux, UMR 5805 EPOC, Pessac CEDEX, France, School of Environmental Sciences, University of Liverpool, Liverpool, United Kingdom, CR2P Centre de Recherche sur la Paléobiodiversité et les Paléoenvironnements, UMR7207–CNRS, MNHN, UPMC, Paris, France, Institute for East China Sea Research (ECSER), Nagasaki, Japan, Geological Survey of Canada, Dartmouth, Canada, UMR6538 Domaines Océaniques, IUEM-UBO, Plouzané, France, Department of Geography, McGill University, Montréal, Canada, ISMER-UQAR, 310 allée des Ursulines, Rimouski, QC, Canada, Department of Geology, University of Tromsø–The Arctic University, Tromsø, Langnes, Norway, Biostratigraphy Core Group, ExxonMobil Exploration Company, Spring, TX, United States, Department of Marine Geochemistry, Alfred-Wegener-Institut (AWI), Helmholtz Zentrum für Polar und Meeresforschung, Bremerhaven, Germany, MARUM–Center for Marine Environmental Sciences, Bremen University, Bremen, Germany, Department of Geology and Geophysics and Museum of Natural Science, Louisiana State University, Baton Rouge, LA, United States, and Department of Earth Sciences, University of New Brunswick, Fredericton, Canada

Subjects
DINOFLAGELLATE, 010506 paleontology, 010502 geochemistry & geophysics, 01 natural sciences, Pterocysta, Genus, Rottnestia, VDP::Matematikk og Naturvitenskap: 400::Geofag: 450, Hafniasphaera, [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology, NORTHERN BELGIUM, 14. Life underwater, ASSEMBLAGES, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, 0105 earth and related environmental sciences, [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics, VDP::Mathematics and natural science: 400::Geosciences: 450, LATE QUATERNARY, biology, Achomosphaera, Spiniferites, Dinoflagellate, Biology and Life Sciences, Paleontology, DINOPHYCEAE, biology.organism_classification, Archaeology, CENOZOIC, EEMIAN HYDROGRAPHIC CONDITIONS, Geography, Baltic sea, Round table, Earth and Environmental Sciences, BALTIC SEA, SP-NOV, MORPHOLOGY, [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology, Cenozoic, PROPOSALS, Dinophyceae
Abstract

We present a summary of two round-table discussions held during two subsequent workshops in Montreal (Canada) on 16 April 2014 and Ostend (Belgium) on 8 July 2015. Five species of the genus Achomosphaera Evitt 1963 Evitt WR. 1963. A discussion and proposals concerning fossil dinoflagellates, hystrichospheres, and acritarchs, I. National Academy of Sciences, Washington, Proceedings. 49(2):158–164.[Crossref], [PubMed], [Web of Science ®], , [Google Scholar] and 33 of the genus Spiniferites Mantell 1850 emend. Sarjeant 1970 Sarjeant WAS. 1970. The genus Spiniferites Mantell, 1850 (Dinophyceae). Grana. 10(1):74–78.[Taylor & Francis Online], , [Google Scholar] occuring in Pliocene to modern sediments are listed and briefly described along with remarks made by workshop participants. In addition, several holotypes and topotypes are reillustrated. Three species previously assigned to Spiniferites are here considered/accepted as belonging to other genera: Impagidinium inaequalis (Wall and Dale in Wall et al. 1973 Wall D, Dale B, Harada K. 1973. Descriptions of new fossil dinoflagellates from the Late Quaternary of the Black Sea. Micropaleontology. 19(1):18–31.[Crossref], , [Google Scholar]) Londeix et al. 2009 Londeix L, Herreyre Y, Turon J-L, Fletcher W. 2009. Last Glacial to Holocene hydrology of the Marmara Sea inferred from a dinoflagellate cyst record. Rev Palaeobot Palynol. 158(1-2):52–71.[Crossref], [Web of Science ®], , [Google Scholar], Spiniferites? rubinus (Rossignol 1962 Rossignol M. 1962. Analyse pollinique de sédiments marins quaternaires en Israël II. - Sédiments pleistocènes. Pollen et Spores. 4:121–148. [Google Scholar] ex Rossignol 1964 Rossignol M. 1964. Hystrichosphères du Quaternaire en Méditerranée orientale, dans les sédiments Pléistocènes et les boues marines actuelles. Revue de Micropaléontologie. 7:83–99. [Google Scholar]) Sarjeant 1970 Sarjeant WAS. 1970. The genus Spiniferites Mantell, 1850 (Dinophyceae). Grana. 10(1):74–78.[Taylor & Francis Online], , [Google Scholar], and Thalassiphora balcanica Balteş 1971. This summary forms the basis for a set of papers that follows, where points raised during the workshops are explored in greater detail.

Published
2018
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6. Seasonal production of organic-walled dinoflagellate cysts in an upwelling system: A sediment trap study from the Santa Barbara Basin, California

Author

Manuel Bringué, Dorothy K. Pak, and Vera Pospelova

Subjects
0106 biological sciences, 010504 meteorology & atmospheric sciences, biology, Ecology, 010604 marine biology & hydrobiology, Dinoflagellate, Paleontology, Oceanography, biology.organism_classification, 01 natural sciences, Algal bloom, Sea surface temperature, Diatom, 13. Climate action, parasitic diseases, Sediment trap, Upwelling, 14. Life underwater, Lingulodinium polyedrum, Dinophysis, 0105 earth and related environmental sciences
Abstract

Seasonal variations in dinoflagellate cyst fluxes and assemblage composition were investigated for the first time on the west coast of the United States of America. We analyzed the palynological content of an ~ two year-long (May 1995 to March 1997) fortnightly sediment trap time series from the Santa Barbara Basin (SBB, off Southern California), a region characterized by seasonal upwelling and high levels of primary productivity. A total of 47 dinoflagellate cyst taxa were identified in the trap samples, with assemblages dominated by cysts produced by heterotrophic taxa. Multivariate analyses support that dinoflagellate cyst fluxes and assemblages are reliable indicators of primary productivity, and reflect sea surface temperature (SST) variations associated with upwelling in the SBB. In particular, Brigantedinium spp. are associated with active upwelling intervals (fluxes up to 127,430 cysts m − 2 day − 1 and up to 86.6% of the assemblage), when SST is lower, stratification is weaker and diatom production is maximal. Conversely, Lingulodinium machaerophorum indicates relaxed upwelling conditions (up to 9640 cysts m − 2 day − 1 and 29.9% of the assemblage) characterized by higher SST, stronger stratification and reduced primary productivity. Selenopemphix undulata is associated with colder SST in the region, whereas cyst type A abundances increase with higher SST. Thecae of potentially toxic dinoflagellates are also documented, such as Lingulodinium polyedrum and Prorocentrum micans , which are mainly recorded under conditions of higher SST and strong stratification, and Dinophysis spp. with higher fluxes between June and September of both 1995 and 1996.

Published
2013
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7. 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

Author

Vera Pospelova, Manuel Bringué, Kenneth Neil Mertens, Barrie Dale, Stephen Louwye, Nicolas Van Nieuwenhove, R. Timothy Patterson, Elinor Andrén, Taoufik Radi, André Rochon, Yoshihito Takano, Kaarina Weckström, Kazumi Matsuoka, and Anne de Vernal

Subjects
Length variation, Oceanography, Arts and Humanities (miscellaneous), biology, Ecology, Protoceratium reticulatum, Ocean current, Earth and Planetary Sciences (miscellaneous), Dinoflagellate, Paleontology, biology.organism_classification, Geology
Abstract

Process length variation of cysts of the dinoflagellate Protoceratium reticulatum (Claparede et Lachmann) Butschli in surface sediments from the North Pacific was investigated. The average process ...

Published
2012
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