CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology)
Vertical fluxes of fatty acids were measured in sinking particles collected using a time-series sediment trap in Breid Bay, Antarctica during the austral summer from December 1985 to February 1986. Major components of fatty acids indicated that the sinking organic matter was mainly derived from diat...
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ftnipr:oai:nipr.repo.nii.ac.jp:00005338 2023-05-15T13:46:39+02:00 CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology) ハヤカワ カズヒデ ハンダ ノブヒコ フクチ ミツオ Kazuhide HAYAKAWA Nobuhiko HANDA Mitsuo FUKUCHI 1997-02 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5338 http://id.nii.ac.jp/1291/00005338/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5338&item_no=1&attribute_id=18&file_no=1 en eng Proceeding Institute for Hydrospheric-Atmospheric Sciences, Nagoya University:(Present address)Lake Biwa Research Institute Institute for Hydrospheric-Atmospheric Sciences, Nagoya University:(Present address)Aichi Prefectural University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5338 http://id.nii.ac.jp/1291/00005338/ AA10819561 Proceedings of the NIPR Symposium on Polar Biology, 10, 39-49(1997-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5338&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1997 ftnipr 2023-02-25T20:13:31Z Vertical fluxes of fatty acids were measured in sinking particles collected using a time-series sediment trap in Breid Bay, Antarctica during the austral summer from December 1985 to February 1986. Major components of fatty acids indicated that the sinking organic matter was mainly derived from diatoms and the contribution of zooplankton to the sinking particles was small. Temporal variation in fatty acid fluxes indicated changes in the abundance and the growth activity of diatom communities in overlying waters during the observations. Ratios of unsaturated fatty acids to saturated fatty acids in the sinking particles increased in the exponential growth phase of the overlying diatom bloom as inferred from changes in the organic carbon and Chl a content of sinking particles which reached their peak and started decreasing thereafter. Relative abundance of 20:5 in total fatty acids increased in the peak fluxes of the sinking particles. Our results suggest that the increase of sinking fluxes during the observations was due to the accumulation of the diatom population, of which growth was induced by some favorable environmental conditions in the surface water. Report Antarc* Antarctica Polar Biology Proceedings of the NIPR Symposium on Polar Biology National Institute of Polar Research Repository, Japan Austral Breid Bay ENVELOPE(24.083,24.083,-70.250,-70.250) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Vertical fluxes of fatty acids were measured in sinking particles collected using a time-series sediment trap in Breid Bay, Antarctica during the austral summer from December 1985 to February 1986. Major components of fatty acids indicated that the sinking organic matter was mainly derived from diatoms and the contribution of zooplankton to the sinking particles was small. Temporal variation in fatty acid fluxes indicated changes in the abundance and the growth activity of diatom communities in overlying waters during the observations. Ratios of unsaturated fatty acids to saturated fatty acids in the sinking particles increased in the exponential growth phase of the overlying diatom bloom as inferred from changes in the organic carbon and Chl a content of sinking particles which reached their peak and started decreasing thereafter. Relative abundance of 20:5 in total fatty acids increased in the peak fluxes of the sinking particles. Our results suggest that the increase of sinking fluxes during the observations was due to the accumulation of the diatom population, of which growth was induced by some favorable environmental conditions in the surface water. |
format |
Report |
author |
ハヤカワ カズヒデ ハンダ ノブヒコ フクチ ミツオ Kazuhide HAYAKAWA Nobuhiko HANDA Mitsuo FUKUCHI |
spellingShingle |
ハヤカワ カズヒデ ハンダ ノブヒコ フクチ ミツオ Kazuhide HAYAKAWA Nobuhiko HANDA Mitsuo FUKUCHI CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology) |
author_facet |
ハヤカワ カズヒデ ハンダ ノブヒコ フクチ ミツオ Kazuhide HAYAKAWA Nobuhiko HANDA Mitsuo FUKUCHI |
author_sort |
ハヤカワ カズヒデ |
title |
CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology) |
title_short |
CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology) |
title_full |
CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology) |
title_fullStr |
CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology) |
title_full_unstemmed |
CHANGES IN THE FATTY ACID COMPOSITION OF SINKING PARTICLES DURING A PHYTOPLANKTON BLOOM IN THE AUSTRAL SUMMER IN BREID BAY, ANTARCTICA (18th Symposium on Polar Biology) |
title_sort |
changes in the fatty acid composition of sinking particles during a phytoplankton bloom in the austral summer in breid bay, antarctica (18th symposium on polar biology) |
publisher |
Proceeding |
publishDate |
1997 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5338 http://id.nii.ac.jp/1291/00005338/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5338&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(24.083,24.083,-70.250,-70.250) |
geographic |
Austral Breid Bay |
geographic_facet |
Austral Breid Bay |
genre |
Antarc* Antarctica Polar Biology Proceedings of the NIPR Symposium on Polar Biology |
genre_facet |
Antarc* Antarctica Polar Biology Proceedings of the NIPR Symposium on Polar Biology |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5338 http://id.nii.ac.jp/1291/00005338/ AA10819561 Proceedings of the NIPR Symposium on Polar Biology, 10, 39-49(1997-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5338&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766244973317980160 |