An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients
Environmental variability affects the distributions of most marine fish species. In this analysis, assemblages of rockfish (Sebastes spp.) species were defined on the basis of similarities in their distributions along environmental gradients. Data from 14 bottom trawl surveys of the Gulf of Alaska a...
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ftoceandocs:oai:aquadocs.org:1834/25496 2023-05-15T18:48:35+02:00 An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients Rooper, Christopher N. 2008 application/pdf 1-11 http://hdl.handle.net/1834/25496 en eng http://fishbull.noaa.gov/1061/rooper.pdf 0090-0656 http://hdl.handle.net/1834/25496 http://aquaticcommons.org/id/eprint/8853 403 2012-06-14 17:13:54 8853 United States National Marine Fisheries Service Biology Ecology Fisheries Management article TRUE 2008 ftoceandocs 2023-04-06T17:02:54Z Environmental variability affects the distributions of most marine fish species. In this analysis, assemblages of rockfish (Sebastes spp.) species were defined on the basis of similarities in their distributions along environmental gradients. Data from 14 bottom trawl surveys of the Gulf of Alaska and Aleutian Islands (n=6767) were used. Five distinct assemblages of rockfish were defined by geographical position, depth, and temperature. The 180-m and 275-m depth contours were major divisions between assemblages inhabiting the shelf, shelf break, and lower continental slope. Another noticeable division was between species centered in southeastern Alaska and those found in the northern Gulf of Alaska and Aleutian Islands. The use of environmental variables to define the species composition of assemblages is different from the use of traditional methods based on clustering and nonparametric statistics and as such, environmentally based analyses should result in predictable assemblages of species that are useful for ecosystem-based management. Article in Journal/Newspaper Alaska Aleutian Islands IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Gulf of Alaska Pacific |
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Open Polar |
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IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Biology Ecology Fisheries Management |
spellingShingle |
Biology Ecology Fisheries Management Rooper, Christopher N. An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients |
topic_facet |
Biology Ecology Fisheries Management |
description |
Environmental variability affects the distributions of most marine fish species. In this analysis, assemblages of rockfish (Sebastes spp.) species were defined on the basis of similarities in their distributions along environmental gradients. Data from 14 bottom trawl surveys of the Gulf of Alaska and Aleutian Islands (n=6767) were used. Five distinct assemblages of rockfish were defined by geographical position, depth, and temperature. The 180-m and 275-m depth contours were major divisions between assemblages inhabiting the shelf, shelf break, and lower continental slope. Another noticeable division was between species centered in southeastern Alaska and those found in the northern Gulf of Alaska and Aleutian Islands. The use of environmental variables to define the species composition of assemblages is different from the use of traditional methods based on clustering and nonparametric statistics and as such, environmentally based analyses should result in predictable assemblages of species that are useful for ecosystem-based management. |
format |
Article in Journal/Newspaper |
author |
Rooper, Christopher N. |
author_facet |
Rooper, Christopher N. |
author_sort |
Rooper, Christopher N. |
title |
An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients |
title_short |
An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients |
title_full |
An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients |
title_fullStr |
An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients |
title_full_unstemmed |
An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients |
title_sort |
ecological analysis of rockfish (sebastes spp.) assemblages in the north pacific ocean along broad-scale environmental gradients |
publishDate |
2008 |
url |
http://hdl.handle.net/1834/25496 |
geographic |
Gulf of Alaska Pacific |
geographic_facet |
Gulf of Alaska Pacific |
genre |
Alaska Aleutian Islands |
genre_facet |
Alaska Aleutian Islands |
op_source |
http://aquaticcommons.org/id/eprint/8853 403 2012-06-14 17:13:54 8853 United States National Marine Fisheries Service |
op_relation |
http://fishbull.noaa.gov/1061/rooper.pdf 0090-0656 http://hdl.handle.net/1834/25496 |
_version_ |
1766241719862427648 |