Summer feeding activities of zooplankton in Prydz Bay, Antarctica
Grazing of dominant zooplankton copepods (Calanoides acutus. and Metridia gerlachei), salps (Salpa thompsoni) and microzooplankton was determined during the austral summer of 1998/1999 at the seasonal ice zone of the Prydz Bay region. The objective was to measure the ingestion rates of zooplankton a...
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/2832 2024-09-15T17:42:17+00:00 Summer feeding activities of zooplankton in Prydz Bay, Antarctica Li, CL Sun, S Zhang, GT Ji, P 2001-12-01 http://ir.qdio.ac.cn/handle/337002/2833 英语 eng POLAR BIOLOGY Li, CL; Sun, S; Zhang, GT; Ji, P.Summer feeding activities of zooplankton in Prydz Bay, Antarctica,POLAR BIOLOGY,2001,24(12):892-900 http://ir.qdio.ac.cn/handle/337002/2833 Marginal Ice-zone Krill Euphausia-superba Gut Evacuation Rates Midwater Food Web Weddell Sea Southern-ocean Grazing Rates Ross Sea Phytoplankton Copepods Biodiversity Conservation Ecology Article 期刊论文 2001 ftchinacasciocas 2024-08-09T03:18:11Z Grazing of dominant zooplankton copepods (Calanoides acutus. and Metridia gerlachei), salps (Salpa thompsoni) and microzooplankton was determined during the austral summer of 1998/1999 at the seasonal ice zone of the Prydz Bay region. The objective was to measure the ingestion rates of zooplankton at the seasonal ice zone, so as to evaluate the importance of different groups of zooplankton in their grazing impact on phytoplankton standing stock and primary production. Grazing by copepods was low, and accounted for less than or equal to 1% of phytoplankton standing stocks and 3.8-12.5% of primary production for both species during this study, even the ingestion rates of individuals were at a high level compared with previous reports. S. thompsoni exhibited a relatively high grazing impact on primary production (72%) in the north of our investigation area. The highest grazing impact on phytoplankton was exerted by microzooplankton during this investigation, and accounted for 10-65% of the standing stock of phytoplankton and 34-100% of potential daily primary production. We concluded that microzooplankton was the dominant phytoplankton consumer in this study area. Salps also played an important role in control of phytoplankton where swarming occurred. The grazing of copepods had a relatively small effect on phytoplankton biomass development. Grazing of dominant zooplankton copepods (Calanoides acutus. and Metridia gerlachei), salps (Salpa thompsoni) and microzooplankton was determined during the austral summer of 1998/1999 at the seasonal ice zone of the Prydz Bay region. The objective was to measure the ingestion rates of zooplankton at the seasonal ice zone, so as to evaluate the importance of different groups of zooplankton in their grazing impact on phytoplankton standing stock and primary production. Grazing by copepods was low, and accounted for less than or equal to 1% of phytoplankton standing stocks and 3.8-12.5% of primary production for both species during this study, even the ingestion rates of ... Article in Journal/Newspaper Antarc* Antarctica Euphausia superba Polar Biology Prydz Bay Ross Sea Southern Ocean Weddell Sea Copepods Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Marginal Ice-zone Krill Euphausia-superba Gut Evacuation Rates Midwater Food Web Weddell Sea Southern-ocean Grazing Rates Ross Sea Phytoplankton Copepods Biodiversity Conservation Ecology |
spellingShingle |
Marginal Ice-zone Krill Euphausia-superba Gut Evacuation Rates Midwater Food Web Weddell Sea Southern-ocean Grazing Rates Ross Sea Phytoplankton Copepods Biodiversity Conservation Ecology Li, CL Sun, S Zhang, GT Ji, P Summer feeding activities of zooplankton in Prydz Bay, Antarctica |
topic_facet |
Marginal Ice-zone Krill Euphausia-superba Gut Evacuation Rates Midwater Food Web Weddell Sea Southern-ocean Grazing Rates Ross Sea Phytoplankton Copepods Biodiversity Conservation Ecology |
description |
Grazing of dominant zooplankton copepods (Calanoides acutus. and Metridia gerlachei), salps (Salpa thompsoni) and microzooplankton was determined during the austral summer of 1998/1999 at the seasonal ice zone of the Prydz Bay region. The objective was to measure the ingestion rates of zooplankton at the seasonal ice zone, so as to evaluate the importance of different groups of zooplankton in their grazing impact on phytoplankton standing stock and primary production. Grazing by copepods was low, and accounted for less than or equal to 1% of phytoplankton standing stocks and 3.8-12.5% of primary production for both species during this study, even the ingestion rates of individuals were at a high level compared with previous reports. S. thompsoni exhibited a relatively high grazing impact on primary production (72%) in the north of our investigation area. The highest grazing impact on phytoplankton was exerted by microzooplankton during this investigation, and accounted for 10-65% of the standing stock of phytoplankton and 34-100% of potential daily primary production. We concluded that microzooplankton was the dominant phytoplankton consumer in this study area. Salps also played an important role in control of phytoplankton where swarming occurred. The grazing of copepods had a relatively small effect on phytoplankton biomass development. Grazing of dominant zooplankton copepods (Calanoides acutus. and Metridia gerlachei), salps (Salpa thompsoni) and microzooplankton was determined during the austral summer of 1998/1999 at the seasonal ice zone of the Prydz Bay region. The objective was to measure the ingestion rates of zooplankton at the seasonal ice zone, so as to evaluate the importance of different groups of zooplankton in their grazing impact on phytoplankton standing stock and primary production. Grazing by copepods was low, and accounted for less than or equal to 1% of phytoplankton standing stocks and 3.8-12.5% of primary production for both species during this study, even the ingestion rates of ... |
format |
Article in Journal/Newspaper |
author |
Li, CL Sun, S Zhang, GT Ji, P |
author_facet |
Li, CL Sun, S Zhang, GT Ji, P |
author_sort |
Li, CL |
title |
Summer feeding activities of zooplankton in Prydz Bay, Antarctica |
title_short |
Summer feeding activities of zooplankton in Prydz Bay, Antarctica |
title_full |
Summer feeding activities of zooplankton in Prydz Bay, Antarctica |
title_fullStr |
Summer feeding activities of zooplankton in Prydz Bay, Antarctica |
title_full_unstemmed |
Summer feeding activities of zooplankton in Prydz Bay, Antarctica |
title_sort |
summer feeding activities of zooplankton in prydz bay, antarctica |
publishDate |
2001 |
url |
http://ir.qdio.ac.cn/handle/337002/2833 |
genre |
Antarc* Antarctica Euphausia superba Polar Biology Prydz Bay Ross Sea Southern Ocean Weddell Sea Copepods |
genre_facet |
Antarc* Antarctica Euphausia superba Polar Biology Prydz Bay Ross Sea Southern Ocean Weddell Sea Copepods |
op_relation |
POLAR BIOLOGY Li, CL; Sun, S; Zhang, GT; Ji, P.Summer feeding activities of zooplankton in Prydz Bay, Antarctica,POLAR BIOLOGY,2001,24(12):892-900 http://ir.qdio.ac.cn/handle/337002/2833 |
_version_ |
1810488796315123712 |