Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean
Production and dispersion of coccolithophores are assessed within their ecologic and hydrographic context across enhanced spring chlorophyll production in the surface eastern North Atlantic. Within a 4 day period from 12 to 16 March 2004, a N-S transect from 47 degrees N to 33 degrees N was sampled...
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ftoceanrep:oai:oceanrep.geomar.de:13413 2023-05-15T17:31:20+02:00 Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna J. Thierstein, Hans-R. 2011 text https://oceanrep.geomar.de/id/eprint/13413/ https://oceanrep.geomar.de/id/eprint/13413/1/Schiebel.pdf https://doi.org/10.1029/2010JC006841 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/13413/1/Schiebel.pdf Schiebel, R., Brupbacher, U., Schmidtko, S. , Nausch, G., Waniek, J. J. and Thierstein, H. R. (2011) Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean. Open Access Journal of Geophysical Research: Oceans, 116 (C8). C08030. DOI 10.1029/2010JC006841 <https://doi.org/10.1029/2010JC006841>. doi:10.1029/2010JC006841 info:eu-repo/semantics/openAccess Article PeerReviewed 2011 ftoceanrep https://doi.org/10.1029/2010JC006841 2023-04-07T15:02:24Z Production and dispersion of coccolithophores are assessed within their ecologic and hydrographic context across enhanced spring chlorophyll production in the surface eastern North Atlantic. Within a 4 day period from 12 to 16 March 2004, a N-S transect from 47 degrees N to 33 degrees N was sampled along 20 degrees W. Water samples from defined depths down to 200 m were analyzed for coccolithophores from 0.45 mu m polycarbonate filters by scanning electron microscopy. At 47 degrees N coccolithophores flourished when euphotic conditions allowed new production at deep mixing, low temperatures, and high nutrient concentrations. Emiliania huxleyi flourished at high turbulence during an early stage of the phytoplankton succession and contributed half of the total coccolithophore assemblage, with up to 150 x 10(3) cells L(-1) and up to 12 x 10(9) cells m(-2) when integrated over the upper 200 m of the water column. Maximum chlorophyll concentrations occurred just north of the Azores Front, at 37 degrees N-39 degrees N, at comparatively low numbers of coccolithophores. To the south, at 35 degrees N-33 degrees N, coccolithophores were abundant within calm and stratified Subtropical Mode Waters, and E. huxleyi was the dominant species again. Although the cell densities of coccolithophores observed here remained below those typical of plankton blooms visible from satellite images, the depth-integrated total mass makes them significant producers of calcite and contributors to the total carbon sedimentation at a much wider range of ecological conditions during late winter and early spring than hitherto assumed. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Journal of Geophysical Research 116 C8 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Production and dispersion of coccolithophores are assessed within their ecologic and hydrographic context across enhanced spring chlorophyll production in the surface eastern North Atlantic. Within a 4 day period from 12 to 16 March 2004, a N-S transect from 47 degrees N to 33 degrees N was sampled along 20 degrees W. Water samples from defined depths down to 200 m were analyzed for coccolithophores from 0.45 mu m polycarbonate filters by scanning electron microscopy. At 47 degrees N coccolithophores flourished when euphotic conditions allowed new production at deep mixing, low temperatures, and high nutrient concentrations. Emiliania huxleyi flourished at high turbulence during an early stage of the phytoplankton succession and contributed half of the total coccolithophore assemblage, with up to 150 x 10(3) cells L(-1) and up to 12 x 10(9) cells m(-2) when integrated over the upper 200 m of the water column. Maximum chlorophyll concentrations occurred just north of the Azores Front, at 37 degrees N-39 degrees N, at comparatively low numbers of coccolithophores. To the south, at 35 degrees N-33 degrees N, coccolithophores were abundant within calm and stratified Subtropical Mode Waters, and E. huxleyi was the dominant species again. Although the cell densities of coccolithophores observed here remained below those typical of plankton blooms visible from satellite images, the depth-integrated total mass makes them significant producers of calcite and contributors to the total carbon sedimentation at a much wider range of ecological conditions during late winter and early spring than hitherto assumed. |
format |
Article in Journal/Newspaper |
author |
Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna J. Thierstein, Hans-R. |
spellingShingle |
Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna J. Thierstein, Hans-R. Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
author_facet |
Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna J. Thierstein, Hans-R. |
author_sort |
Schiebel, Ralf |
title |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_short |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_full |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_fullStr |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_full_unstemmed |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_sort |
spring coccolithophore production and dispersion in the temperate eastern north atlantic ocean |
publisher |
AGU (American Geophysical Union) |
publishDate |
2011 |
url |
https://oceanrep.geomar.de/id/eprint/13413/ https://oceanrep.geomar.de/id/eprint/13413/1/Schiebel.pdf https://doi.org/10.1029/2010JC006841 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/13413/1/Schiebel.pdf Schiebel, R., Brupbacher, U., Schmidtko, S. , Nausch, G., Waniek, J. J. and Thierstein, H. R. (2011) Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean. Open Access Journal of Geophysical Research: Oceans, 116 (C8). C08030. DOI 10.1029/2010JC006841 <https://doi.org/10.1029/2010JC006841>. doi:10.1029/2010JC006841 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2010JC006841 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
C8 |
_version_ |
1766128852559462400 |