Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom
10th Annual Meeting of the North-Pacific-Marine-Science-Organization (PICES), VICTORIA, CANADA, OCT, 2001 International audience Production and turnover rates of C-37 alkenones were determined by a C-13-labeling technique during the Emiliania huxleyi blooms in the eastern Bering Sea. The production...
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ftsorbonneuniv:oai:HAL:hal-03483038v1 2024-09-09T19:33:43+00:00 Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom Shin, Kh Tanaka, N Harada, N Marty, Jc Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2002 https://hal.science/hal-03483038 https://doi.org/10.1016/S0079-6611(02)00073-3 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/S0079-6611(02)00073-3 hal-03483038 https://hal.science/hal-03483038 doi:10.1016/S0079-6611(02)00073-3 ISSN: 0079-6611 Progress in Oceanography https://hal.science/hal-03483038 Progress in Oceanography, 2002, 55 (1-2), pp.113-129. ⟨10.1016/S0079-6611(02)00073-3⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2002 ftsorbonneuniv https://doi.org/10.1016/S0079-6611(02)00073-3 2024-07-25T23:47:52Z 10th Annual Meeting of the North-Pacific-Marine-Science-Organization (PICES), VICTORIA, CANADA, OCT, 2001 International audience Production and turnover rates of C-37 alkenones were determined by a C-13-labeling technique during the Emiliania huxleyi blooms in the eastern Bering Sea. The production rates of C-37 alkenones are variable in the surface water of the Bering Sea (during Emiliania huxleyi blooms), ranging from 0.019-0.043 mug 1(-1) day(-1) for C-37.2 and 0.057-0.16 for mug 1(-1) day(-1) C-37.3 respectively. The temperature difference (dT*) between in situ temperature and U-37(k')-based temperature (estimated by C-37 alkenone unsaturation index: U-37(k'),) for seston is generally larger than the temperature difference between in situ temperature and Pr-U-37(k')-based temperature (estimated by the unsaturation index of C-37 alkenone production rate). Therefore, the application of Pr-U-37(k') determined by the C-13 labeling can be suggested as a more accurate calibration of in situ temperature. On the other hand, the C-37 alkenones concentration (3.1 mug 1(-1)) at BR-10 (middle shelf) is 4-16 fold larger than the concentrations (0.19-0.77 mug 1(-1)) at other stations. In addition, the U-37(k')-based seawater temperature at BR-10 (4.0 degreesC) was much lower than the in situ temperature (7.5 degreesC), showing the largest seawater temperature difference (dT*). This low temperature and high abundance of C-37 alkenones may be the result of turbulent mixing, like that caused by eddies on the continental slope area, considering the existence of very loco temperature and high ammonium concentration water in the water mass beneath the surface layer. The uncoupling between the in situ temperature and U-37(k')-based seawater temperature in the middle of shelf area (BR-10) may indicate a link between the nutrient supply mechanism and the sustained Emiliania huxleyi bloom from summer through autumn. (C) 2002 Elsevier Science Ltd. All rights reserved. Article in Journal/Newspaper Bering Sea HAL Sorbonne Université Bering Sea Canada Pacific Progress in Oceanography 55 1-2 113 129 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Shin, Kh Tanaka, N Harada, N Marty, Jc Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
10th Annual Meeting of the North-Pacific-Marine-Science-Organization (PICES), VICTORIA, CANADA, OCT, 2001 International audience Production and turnover rates of C-37 alkenones were determined by a C-13-labeling technique during the Emiliania huxleyi blooms in the eastern Bering Sea. The production rates of C-37 alkenones are variable in the surface water of the Bering Sea (during Emiliania huxleyi blooms), ranging from 0.019-0.043 mug 1(-1) day(-1) for C-37.2 and 0.057-0.16 for mug 1(-1) day(-1) C-37.3 respectively. The temperature difference (dT*) between in situ temperature and U-37(k')-based temperature (estimated by C-37 alkenone unsaturation index: U-37(k'),) for seston is generally larger than the temperature difference between in situ temperature and Pr-U-37(k')-based temperature (estimated by the unsaturation index of C-37 alkenone production rate). Therefore, the application of Pr-U-37(k') determined by the C-13 labeling can be suggested as a more accurate calibration of in situ temperature. On the other hand, the C-37 alkenones concentration (3.1 mug 1(-1)) at BR-10 (middle shelf) is 4-16 fold larger than the concentrations (0.19-0.77 mug 1(-1)) at other stations. In addition, the U-37(k')-based seawater temperature at BR-10 (4.0 degreesC) was much lower than the in situ temperature (7.5 degreesC), showing the largest seawater temperature difference (dT*). This low temperature and high abundance of C-37 alkenones may be the result of turbulent mixing, like that caused by eddies on the continental slope area, considering the existence of very loco temperature and high ammonium concentration water in the water mass beneath the surface layer. The uncoupling between the in situ temperature and U-37(k')-based seawater temperature in the middle of shelf area (BR-10) may indicate a link between the nutrient supply mechanism and the sustained Emiliania huxleyi bloom from summer through autumn. (C) 2002 Elsevier Science Ltd. All rights reserved. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Shin, Kh Tanaka, N Harada, N Marty, Jc |
author_facet |
Shin, Kh Tanaka, N Harada, N Marty, Jc |
author_sort |
Shin, Kh |
title |
Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom |
title_short |
Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom |
title_full |
Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom |
title_fullStr |
Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom |
title_full_unstemmed |
Production and turnover rates of C-37 alkenones in the eastern Bering Sea: implication for the mechanism of a long duration of Emiliania huxleyi bloom |
title_sort |
production and turnover rates of c-37 alkenones in the eastern bering sea: implication for the mechanism of a long duration of emiliania huxleyi bloom |
publisher |
HAL CCSD |
publishDate |
2002 |
url |
https://hal.science/hal-03483038 https://doi.org/10.1016/S0079-6611(02)00073-3 |
geographic |
Bering Sea Canada Pacific |
geographic_facet |
Bering Sea Canada Pacific |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
ISSN: 0079-6611 Progress in Oceanography https://hal.science/hal-03483038 Progress in Oceanography, 2002, 55 (1-2), pp.113-129. ⟨10.1016/S0079-6611(02)00073-3⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0079-6611(02)00073-3 hal-03483038 https://hal.science/hal-03483038 doi:10.1016/S0079-6611(02)00073-3 |
op_doi |
https://doi.org/10.1016/S0079-6611(02)00073-3 |
container_title |
Progress in Oceanography |
container_volume |
55 |
container_issue |
1-2 |
container_start_page |
113 |
op_container_end_page |
129 |
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1809903258141982720 |