Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004
Abstract: The present paper synthesizes data obtained during a multidisciplinary cruise carried out in June 2004 at the continental margin of the northern Bay of Biscay. The data-set allows to describe the different stages of a coccolithophore bloom dominated by Emiliania huxleyi. The cruise was car...
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ftunivantwerpen:c:irua:84236 2024-10-06T13:51:18+00:00 Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004 Harlay, J. Borges, A.V. van der Zee, C. Delille, B. Godoi, Ricardo Henrique Moreton Schiettecatte, L.-S. Roevros, N. Aerts, Katrien Lapernat, P.-E. Rebreanu, L. Groom, S. Daro, M.-H. Van Grieken, René Chou, L. 2010 pdf https://hdl.handle.net/10067/842360151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/J.POCEAN.2010.04.029 info:eu-repo/semantics/altIdentifier/isi/000281937800001 info:eu-repo/semantics/closedAccess 0079-6611 Progress in oceanography Chemistry info:eu-repo/semantics/article 2010 ftunivantwerpen https://doi.org/10.1016/J.POCEAN.2010.04.029 2024-09-10T04:06:32Z Abstract: The present paper synthesizes data obtained during a multidisciplinary cruise carried out in June 2004 at the continental margin of the northern Bay of Biscay. The data-set allows to describe the different stages of a coccolithophore bloom dominated by Emiliania huxleyi. The cruise was carried out after the main spring phytoplankton bloom that started in mid-April and peaked in mid-May. Consequently, low phosphate (PO4 < 0.2 μM) and silicate (DSi < 2.0 μM) concentrations, low partial pressure of carbon dioxide (pCO2) and high calcite saturation degree in surface waters combined with thermal stratification, probably favoured the blooming of coccolithophores. During the period of the year our cruise was carried out, internal tides induce enhanced vertical mixing at the continental shelf break leading to the injection of inorganic nutrients to surface waters that probably trigger the bloom. The bloom developed as the water-column stratified and as the water mass was advected over the continental shelf, following the general residual circulation in the area. The most developed phase of the bloom was sampled in a remote sensed high reflectance (HR) patch over the continental shelf that was characterized by low chlorophyll-a (Chl-a) concentration in surface waters (<1.0 μg L−1), high particulate inorganic carbon (PIC) concentration (not, vert, similar8 μmol L−1) and coccolithophore abundance up to 57 × 106 cells L−1. Transparent exopolymer particles (TEP) concentrations ranged between 15 and 75 μg C L−1 and carbon content of TEP represented up to 26% of the particulate organic carbon (POC; maximum concentration of 15.5 μmol L−1 in the upper 40 m). Integrated primary production (PP) ranged between 210 and 680 mg C m−2 d−1 and integrated calcification (CAL) ranged between 14 and 140 mg C m−2 d−1, within the range of PP and CAL values previously reported during coccolithophore blooms in open and shelf waters of the North Atlantic Ocean. Bacterial protein production (BPP) measurements in surface waters ... Article in Journal/Newspaper North Atlantic IRUA - Institutional Repository van de Universiteit Antwerpen Progress in Oceanography 86 3-4 317 336 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Chemistry |
spellingShingle |
Chemistry Harlay, J. Borges, A.V. van der Zee, C. Delille, B. Godoi, Ricardo Henrique Moreton Schiettecatte, L.-S. Roevros, N. Aerts, Katrien Lapernat, P.-E. Rebreanu, L. Groom, S. Daro, M.-H. Van Grieken, René Chou, L. Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004 |
topic_facet |
Chemistry |
description |
Abstract: The present paper synthesizes data obtained during a multidisciplinary cruise carried out in June 2004 at the continental margin of the northern Bay of Biscay. The data-set allows to describe the different stages of a coccolithophore bloom dominated by Emiliania huxleyi. The cruise was carried out after the main spring phytoplankton bloom that started in mid-April and peaked in mid-May. Consequently, low phosphate (PO4 < 0.2 μM) and silicate (DSi < 2.0 μM) concentrations, low partial pressure of carbon dioxide (pCO2) and high calcite saturation degree in surface waters combined with thermal stratification, probably favoured the blooming of coccolithophores. During the period of the year our cruise was carried out, internal tides induce enhanced vertical mixing at the continental shelf break leading to the injection of inorganic nutrients to surface waters that probably trigger the bloom. The bloom developed as the water-column stratified and as the water mass was advected over the continental shelf, following the general residual circulation in the area. The most developed phase of the bloom was sampled in a remote sensed high reflectance (HR) patch over the continental shelf that was characterized by low chlorophyll-a (Chl-a) concentration in surface waters (<1.0 μg L−1), high particulate inorganic carbon (PIC) concentration (not, vert, similar8 μmol L−1) and coccolithophore abundance up to 57 × 106 cells L−1. Transparent exopolymer particles (TEP) concentrations ranged between 15 and 75 μg C L−1 and carbon content of TEP represented up to 26% of the particulate organic carbon (POC; maximum concentration of 15.5 μmol L−1 in the upper 40 m). Integrated primary production (PP) ranged between 210 and 680 mg C m−2 d−1 and integrated calcification (CAL) ranged between 14 and 140 mg C m−2 d−1, within the range of PP and CAL values previously reported during coccolithophore blooms in open and shelf waters of the North Atlantic Ocean. Bacterial protein production (BPP) measurements in surface waters ... |
format |
Article in Journal/Newspaper |
author |
Harlay, J. Borges, A.V. van der Zee, C. Delille, B. Godoi, Ricardo Henrique Moreton Schiettecatte, L.-S. Roevros, N. Aerts, Katrien Lapernat, P.-E. Rebreanu, L. Groom, S. Daro, M.-H. Van Grieken, René Chou, L. |
author_facet |
Harlay, J. Borges, A.V. van der Zee, C. Delille, B. Godoi, Ricardo Henrique Moreton Schiettecatte, L.-S. Roevros, N. Aerts, Katrien Lapernat, P.-E. Rebreanu, L. Groom, S. Daro, M.-H. Van Grieken, René Chou, L. |
author_sort |
Harlay, J. |
title |
Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004 |
title_short |
Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004 |
title_full |
Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004 |
title_fullStr |
Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004 |
title_full_unstemmed |
Biogeochemical study of a coccolithophore bloom in the northern Bay of Biscay (NE Atlantic Ocean) in June 2004 |
title_sort |
biogeochemical study of a coccolithophore bloom in the northern bay of biscay (ne atlantic ocean) in june 2004 |
publishDate |
2010 |
url |
https://hdl.handle.net/10067/842360151162165141 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
0079-6611 Progress in oceanography |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.POCEAN.2010.04.029 info:eu-repo/semantics/altIdentifier/isi/000281937800001 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/J.POCEAN.2010.04.029 |
container_title |
Progress in Oceanography |
container_volume |
86 |
container_issue |
3-4 |
container_start_page |
317 |
op_container_end_page |
336 |
_version_ |
1812179525676564480 |