Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline
Ice decline is believed to benefit the pelagic food chain in Arctic shelf ecosystems, but the impacts of ice decline are usually difficult to detect owing to the overlap of ice decline with natural variability. To evaluate the responses of zooplankton communities to sea ice reduction in the Chukchi...
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/157538 2023-05-15T14:58:13+02:00 Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline Xu, Zhiqiang Zhang, Guangtao Sun, Song 2018-09-01 http://ir.qdio.ac.cn/handle/337002/157538 https://doi.org/10.1007/s00300-018-2324-3 英语 eng SPRINGER POLAR BIOLOGY http://ir.qdio.ac.cn/handle/337002/157538 doi:10.1007/s00300-018-2324-3 cn.org.cspace.api.content.CopyrightPolicy@36923e44 Zooplankton community Composition Geographical distribution Species invasion Dominance index Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Ecology Article 期刊论文 2018 ftchinacasciocas https://doi.org/10.1007/s00300-018-2324-3 2022-06-27T05:39:27Z Ice decline is believed to benefit the pelagic food chain in Arctic shelf ecosystems, but the impacts of ice decline are usually difficult to detect owing to the overlap of ice decline with natural variability. To evaluate the responses of zooplankton communities to sea ice reduction in the Chukchi Sea, we combined zooplankton samples collected in the early summers of 2003, 2008, 2010, and 2012 and compared the inter-annual changes in the subregions with various physical and biological characteristics. Three geographically separate communities were identified by a hierarchical cluster analysis. The Bering Sea water influenced the central (CCS) and south (SCS) Chukchi Sea communities, which had total abundances that were approximately ten times higher than that of the north (NCS) Chukchi Sea community, and the inter-annual variability was dramatic. The SCS and CCS shared dominant taxa of Calanus glacialis, Pseudocalanus spp., barnacle larvae (nauplii and cypris), and Oikopleura vanhoffeni, while Pacific and neritic species were recognized as the dominant species in only the SCS. The inter-annual variations in the dominant species assemblages can be explained by the variability in oceanic circulation and the counteractions between copepods and barnacle larvae. Despite the numerical fluctuations, an increase in the average abundances in the Pacific-influenced region and the summer establishment of the C. glacialis population are proposed to be the most pronounced responses to ice decline. The NCS, which is governed by cold Arctic water, was characterized by low abundances and a constant dominant taxa assemblage. This area was also characterized by the presence of the high Arctic species Calanus hyperboreus and a lack of barnacle larvae. The total abundance of the NCS doubled from 2003 to 2008, while the community structure remained consistent. These results indicate that sea ice reduction has a positive effect on the zooplankton community, but heterogeneity is the main obstacle to the detection of the zooplankton ... Article in Journal/Newspaper Arctic Bering Sea Calanus glacialis Calanus hyperboreus Chukchi Chukchi Sea Polar Biology Sea ice Zooplankton Copepods Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Arctic Bering Sea Chukchi Sea Pacific Polar Biology 41 9 1827 1843 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Zooplankton community Composition Geographical distribution Species invasion Dominance index Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Ecology |
spellingShingle |
Zooplankton community Composition Geographical distribution Species invasion Dominance index Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Ecology Xu, Zhiqiang Zhang, Guangtao Sun, Song Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline |
topic_facet |
Zooplankton community Composition Geographical distribution Species invasion Dominance index Biodiversity & Conservation Environmental Sciences & Ecology Biodiversity Conservation Ecology |
description |
Ice decline is believed to benefit the pelagic food chain in Arctic shelf ecosystems, but the impacts of ice decline are usually difficult to detect owing to the overlap of ice decline with natural variability. To evaluate the responses of zooplankton communities to sea ice reduction in the Chukchi Sea, we combined zooplankton samples collected in the early summers of 2003, 2008, 2010, and 2012 and compared the inter-annual changes in the subregions with various physical and biological characteristics. Three geographically separate communities were identified by a hierarchical cluster analysis. The Bering Sea water influenced the central (CCS) and south (SCS) Chukchi Sea communities, which had total abundances that were approximately ten times higher than that of the north (NCS) Chukchi Sea community, and the inter-annual variability was dramatic. The SCS and CCS shared dominant taxa of Calanus glacialis, Pseudocalanus spp., barnacle larvae (nauplii and cypris), and Oikopleura vanhoffeni, while Pacific and neritic species were recognized as the dominant species in only the SCS. The inter-annual variations in the dominant species assemblages can be explained by the variability in oceanic circulation and the counteractions between copepods and barnacle larvae. Despite the numerical fluctuations, an increase in the average abundances in the Pacific-influenced region and the summer establishment of the C. glacialis population are proposed to be the most pronounced responses to ice decline. The NCS, which is governed by cold Arctic water, was characterized by low abundances and a constant dominant taxa assemblage. This area was also characterized by the presence of the high Arctic species Calanus hyperboreus and a lack of barnacle larvae. The total abundance of the NCS doubled from 2003 to 2008, while the community structure remained consistent. These results indicate that sea ice reduction has a positive effect on the zooplankton community, but heterogeneity is the main obstacle to the detection of the zooplankton ... |
format |
Article in Journal/Newspaper |
author |
Xu, Zhiqiang Zhang, Guangtao Sun, Song |
author_facet |
Xu, Zhiqiang Zhang, Guangtao Sun, Song |
author_sort |
Xu, Zhiqiang |
title |
Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline |
title_short |
Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline |
title_full |
Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline |
title_fullStr |
Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline |
title_full_unstemmed |
Inter-annual variation of the summer zooplankton community in the Chukchi Sea:spatial heterogeneity during a decade of rapid ice decline |
title_sort |
inter-annual variation of the summer zooplankton community in the chukchi sea:spatial heterogeneity during a decade of rapid ice decline |
publisher |
SPRINGER |
publishDate |
2018 |
url |
http://ir.qdio.ac.cn/handle/337002/157538 https://doi.org/10.1007/s00300-018-2324-3 |
geographic |
Arctic Bering Sea Chukchi Sea Pacific |
geographic_facet |
Arctic Bering Sea Chukchi Sea Pacific |
genre |
Arctic Bering Sea Calanus glacialis Calanus hyperboreus Chukchi Chukchi Sea Polar Biology Sea ice Zooplankton Copepods |
genre_facet |
Arctic Bering Sea Calanus glacialis Calanus hyperboreus Chukchi Chukchi Sea Polar Biology Sea ice Zooplankton Copepods |
op_relation |
POLAR BIOLOGY http://ir.qdio.ac.cn/handle/337002/157538 doi:10.1007/s00300-018-2324-3 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@36923e44 |
op_doi |
https://doi.org/10.1007/s00300-018-2324-3 |
container_title |
Polar Biology |
container_volume |
41 |
container_issue |
9 |
container_start_page |
1827 |
op_container_end_page |
1843 |
_version_ |
1766330299703099392 |