Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region
The Arctic nearshore surrounding Point Barrow, Alaska, is a dynamic system with complex oceanographic and meteorological processes that drive community composition to change rapidly in space and time. Nearshore fish and zooplankton communities were sampled in the summers of 2013–2015. Spatial, tempo...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2020
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Online Access: | http://dx.doi.org/10.1139/cjfas-2019-0068 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2019-0068 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2019-0068 |
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crcansciencepubl:10.1139/cjfas-2019-0068 2024-06-23T07:49:16+00:00 Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region Barton, Mark B. Vollenweider, Johanna J. Heintz, Ron A. Norcross, Brenda L. Boswell, Kevin M. 2020 http://dx.doi.org/10.1139/cjfas-2019-0068 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2019-0068 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2019-0068 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 77, issue 10, page 1612-1624 ISSN 0706-652X 1205-7533 journal-article 2020 crcansciencepubl https://doi.org/10.1139/cjfas-2019-0068 2024-05-30T08:13:47Z The Arctic nearshore surrounding Point Barrow, Alaska, is a dynamic system with complex oceanographic and meteorological processes that drive community composition to change rapidly in space and time. Nearshore fish and zooplankton communities were sampled in the summers of 2013–2015. Spatial, temporal, environmental, and biological drivers of fish community structure in the Arctic nearshore surrounding Point Barrow were investigated using multivariate canonical correspondence analysis (CCA). A CCA model using the 13 most explanatory variables (three environmental, one spatial, four temporal, and five zooplankton abundances) explained 73% of the variance in community structure in this region. Distinct fish communities were identified within the three waterbodies that were studied (Chukchi Sea, Beaufort Sea, and Elson Lagoon), and these distinctions were largely driven by salinity. Species move into the nearshore at various times after landfast ice breaks up, creating an annual succession of species that can be found in these nearshore habitats. Low-latitude species tend to become abundant later in the summer season, whereas true Arctic species are present under the ice or move in shortly after breakup. Arctic species are also more abundant in colder years, whereas low-latitude species dominate during warmer years. The increasing abundance of low-latitude species in the Arctic nearshore may have serious implications for the food webs in these ecosystems as climate change continues. Article in Journal/Newspaper Arctic Barrow Beaufort Sea Chukchi Chukchi Sea Climate change Point Barrow Zooplankton Alaska Canadian Science Publishing Arctic Chukchi Sea Canadian Journal of Fisheries and Aquatic Sciences 77 10 1612 1624 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
The Arctic nearshore surrounding Point Barrow, Alaska, is a dynamic system with complex oceanographic and meteorological processes that drive community composition to change rapidly in space and time. Nearshore fish and zooplankton communities were sampled in the summers of 2013–2015. Spatial, temporal, environmental, and biological drivers of fish community structure in the Arctic nearshore surrounding Point Barrow were investigated using multivariate canonical correspondence analysis (CCA). A CCA model using the 13 most explanatory variables (three environmental, one spatial, four temporal, and five zooplankton abundances) explained 73% of the variance in community structure in this region. Distinct fish communities were identified within the three waterbodies that were studied (Chukchi Sea, Beaufort Sea, and Elson Lagoon), and these distinctions were largely driven by salinity. Species move into the nearshore at various times after landfast ice breaks up, creating an annual succession of species that can be found in these nearshore habitats. Low-latitude species tend to become abundant later in the summer season, whereas true Arctic species are present under the ice or move in shortly after breakup. Arctic species are also more abundant in colder years, whereas low-latitude species dominate during warmer years. The increasing abundance of low-latitude species in the Arctic nearshore may have serious implications for the food webs in these ecosystems as climate change continues. |
format |
Article in Journal/Newspaper |
author |
Barton, Mark B. Vollenweider, Johanna J. Heintz, Ron A. Norcross, Brenda L. Boswell, Kevin M. |
spellingShingle |
Barton, Mark B. Vollenweider, Johanna J. Heintz, Ron A. Norcross, Brenda L. Boswell, Kevin M. Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region |
author_facet |
Barton, Mark B. Vollenweider, Johanna J. Heintz, Ron A. Norcross, Brenda L. Boswell, Kevin M. |
author_sort |
Barton, Mark B. |
title |
Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region |
title_short |
Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region |
title_full |
Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region |
title_fullStr |
Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region |
title_full_unstemmed |
Spatiotemporal variation of environmental conditions and prey availability that drive Arctic nearshore fish community structure in the Point Barrow, Alaska, region |
title_sort |
spatiotemporal variation of environmental conditions and prey availability that drive arctic nearshore fish community structure in the point barrow, alaska, region |
publisher |
Canadian Science Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1139/cjfas-2019-0068 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2019-0068 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2019-0068 |
geographic |
Arctic Chukchi Sea |
geographic_facet |
Arctic Chukchi Sea |
genre |
Arctic Barrow Beaufort Sea Chukchi Chukchi Sea Climate change Point Barrow Zooplankton Alaska |
genre_facet |
Arctic Barrow Beaufort Sea Chukchi Chukchi Sea Climate change Point Barrow Zooplankton Alaska |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 77, issue 10, page 1612-1624 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2019-0068 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
77 |
container_issue |
10 |
container_start_page |
1612 |
op_container_end_page |
1624 |
_version_ |
1802639582344249344 |