Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa)
To better understand production, succession, excystment and transport of dinoflagellate cysts (dinocysts) and planktonic foraminifera in the upper water column, we investigated their fluxes during a 7-day survey in the active upwelling off Cape Blanc (NW Africa) in November 2018 with drifting traps...
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Taylor & Francis
2021
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Online Access: | https://dx.doi.org/10.6084/m9.figshare.14568632 https://tandf.figshare.com/articles/dataset/Export_flux_succession_of_dinoflagellate_cysts_and_planktonic_foraminifera_in_an_active_upwelling_cell_off_Cape_Blanc_NW_Africa_/14568632 |
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ftdatacite:10.6084/m9.figshare.14568632 2023-05-15T18:00:21+02:00 Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa) Zonneveld, Karin A.F. Meilland, Julie Donner, Barbara Versteegh, Gerard J.M. 2021 https://dx.doi.org/10.6084/m9.figshare.14568632 https://tandf.figshare.com/articles/dataset/Export_flux_succession_of_dinoflagellate_cysts_and_planktonic_foraminifera_in_an_active_upwelling_cell_off_Cape_Blanc_NW_Africa_/14568632 unknown Taylor & Francis https://dx.doi.org/10.1080/09670262.2021.1885066 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Microbiology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences Dataset dataset 2021 ftdatacite https://doi.org/10.6084/m9.figshare.14568632 https://doi.org/10.1080/09670262.2021.1885066 2022-03-10T11:46:29Z To better understand production, succession, excystment and transport of dinoflagellate cysts (dinocysts) and planktonic foraminifera in the upper water column, we investigated their fluxes during a 7-day survey in the active upwelling off Cape Blanc (NW Africa) in November 2018 with drifting traps at 100 m, 200 m and 400 m water depth. The survey covered a change from active upwelling to stratified conditions. Highest production of organic dinocysts and planktonic foraminifera was observed during active upwelling conditions and decreased drastically towards the end of the survey. Calcareous dinocysts appeared later during upwelling relaxation. Cytoplasm-bearing (full) dinocysts and foraminifera were produced in the water column above the traps (<100 m depth). Some of the empty dinocysts were resuspended, implying that sediments below the survey site contain both local and allochthonous cyst assemblages. This is the first demonstration that excystment in the upper water column is species-specific. Brigantedinium excysted in the upper water column before reaching deeper depths, whereas no upper water column excystment was observed for the other dinoflagellate species. Dinoflagellate and planktonic foraminifera associations showed a clear succession. During active upwelling, Echinidinium zonneveldiae , Brigantedinium spp., other peridinioids, Echinidinium spp., cysts of Pentapharsodinium dalei , ‘other photosynthetic organic-walled dinocysts‘, Neogloboquadrina incompta and Globigerinella calida were collected. During upwelling relaxation, Lingulodinium machaerophorum was produced; and under stratified conditions Gymnodiniaceae cysts ( G. microreticulatum , G. catenatum ) and the foraminifera Globigerina bulloides and Orbulina universa were sampled. Apart from enhancing knowledge of these species, our observations allow more detailed reconstructions of upwelling history in the Cape Blanc region based on sedimentary archives using fossilized dinoflagellate and planktonic foraminifera assemblages. Dataset Planktonic foraminifera DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Microbiology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences |
spellingShingle |
Microbiology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences Zonneveld, Karin A.F. Meilland, Julie Donner, Barbara Versteegh, Gerard J.M. Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa) |
topic_facet |
Microbiology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences |
description |
To better understand production, succession, excystment and transport of dinoflagellate cysts (dinocysts) and planktonic foraminifera in the upper water column, we investigated their fluxes during a 7-day survey in the active upwelling off Cape Blanc (NW Africa) in November 2018 with drifting traps at 100 m, 200 m and 400 m water depth. The survey covered a change from active upwelling to stratified conditions. Highest production of organic dinocysts and planktonic foraminifera was observed during active upwelling conditions and decreased drastically towards the end of the survey. Calcareous dinocysts appeared later during upwelling relaxation. Cytoplasm-bearing (full) dinocysts and foraminifera were produced in the water column above the traps (<100 m depth). Some of the empty dinocysts were resuspended, implying that sediments below the survey site contain both local and allochthonous cyst assemblages. This is the first demonstration that excystment in the upper water column is species-specific. Brigantedinium excysted in the upper water column before reaching deeper depths, whereas no upper water column excystment was observed for the other dinoflagellate species. Dinoflagellate and planktonic foraminifera associations showed a clear succession. During active upwelling, Echinidinium zonneveldiae , Brigantedinium spp., other peridinioids, Echinidinium spp., cysts of Pentapharsodinium dalei , ‘other photosynthetic organic-walled dinocysts‘, Neogloboquadrina incompta and Globigerinella calida were collected. During upwelling relaxation, Lingulodinium machaerophorum was produced; and under stratified conditions Gymnodiniaceae cysts ( G. microreticulatum , G. catenatum ) and the foraminifera Globigerina bulloides and Orbulina universa were sampled. Apart from enhancing knowledge of these species, our observations allow more detailed reconstructions of upwelling history in the Cape Blanc region based on sedimentary archives using fossilized dinoflagellate and planktonic foraminifera assemblages. |
format |
Dataset |
author |
Zonneveld, Karin A.F. Meilland, Julie Donner, Barbara Versteegh, Gerard J.M. |
author_facet |
Zonneveld, Karin A.F. Meilland, Julie Donner, Barbara Versteegh, Gerard J.M. |
author_sort |
Zonneveld, Karin A.F. |
title |
Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa) |
title_short |
Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa) |
title_full |
Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa) |
title_fullStr |
Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa) |
title_full_unstemmed |
Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa) |
title_sort |
export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off cape blanc (nw africa) |
publisher |
Taylor & Francis |
publishDate |
2021 |
url |
https://dx.doi.org/10.6084/m9.figshare.14568632 https://tandf.figshare.com/articles/dataset/Export_flux_succession_of_dinoflagellate_cysts_and_planktonic_foraminifera_in_an_active_upwelling_cell_off_Cape_Blanc_NW_Africa_/14568632 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.1080/09670262.2021.1885066 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.14568632 https://doi.org/10.1080/09670262.2021.1885066 |
_version_ |
1766169414533644288 |