Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska
Thesis (M.S.) University of Alaska Fairbanks, 2007 Zooplankton community dynamics and correlations with physical characteristics of the water were studied in the northwestern Gulf of Alaska. Zooplankton were collected systematically northeast of Kodiak Island, Alaska in March, May, August and Novemb...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/5895 2023-05-15T17:04:35+02:00 Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska Wang, Xian 2007-08 http://hdl.handle.net/11122/5895 en_US eng http://hdl.handle.net/11122/5895 Program in Marine Science and Limnology Thesis ms 2007 ftunivalaska 2023-02-23T21:36:32Z Thesis (M.S.) University of Alaska Fairbanks, 2007 Zooplankton community dynamics and correlations with physical characteristics of the water were studied in the northwestern Gulf of Alaska. Zooplankton were collected systematically northeast of Kodiak Island, Alaska in March, May, August and November of 2002 to 2004. Species composition, total abundance and spatial community structure were correlated to physical variables. Small copepods (numerically>50%) dominated the zooplankton composition and were most abundant in August. Average biomass was 48.7 g WW m⁻² in May and 52.0 g WW m⁻² in August in Kodiak region. Interannual zooplankton abundance variations were large, with May 2003 having a dramatically higher abundance (2x10⁴ individual m⁻³ higher) than 2002 and 2004, probably due to the higher temperature (1° C higher) and lower salinity in May 2003. Small to moderate correlations (r<0.7) were found between temporal zooplankton abundance and selected physical variables. Spatial patterns in zooplankton composition among stations were more discernable in May than in August, likely due to water column stability in the spring and more dynamic influences in the summer, but revealed no consistent spatial patterns. The zooplankton community patterns in this region thus appear to arise due to complex oceanographic and bathymetric interactions, and suggest high variability can occur in the availability of prey for higher trophic levels. Thesis Kodiak Alaska Copepods University of Alaska: ScholarWorks@UA Fairbanks Gulf of Alaska |
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Open Polar |
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University of Alaska: ScholarWorks@UA |
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ftunivalaska |
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English |
description |
Thesis (M.S.) University of Alaska Fairbanks, 2007 Zooplankton community dynamics and correlations with physical characteristics of the water were studied in the northwestern Gulf of Alaska. Zooplankton were collected systematically northeast of Kodiak Island, Alaska in March, May, August and November of 2002 to 2004. Species composition, total abundance and spatial community structure were correlated to physical variables. Small copepods (numerically>50%) dominated the zooplankton composition and were most abundant in August. Average biomass was 48.7 g WW m⁻² in May and 52.0 g WW m⁻² in August in Kodiak region. Interannual zooplankton abundance variations were large, with May 2003 having a dramatically higher abundance (2x10⁴ individual m⁻³ higher) than 2002 and 2004, probably due to the higher temperature (1° C higher) and lower salinity in May 2003. Small to moderate correlations (r<0.7) were found between temporal zooplankton abundance and selected physical variables. Spatial patterns in zooplankton composition among stations were more discernable in May than in August, likely due to water column stability in the spring and more dynamic influences in the summer, but revealed no consistent spatial patterns. The zooplankton community patterns in this region thus appear to arise due to complex oceanographic and bathymetric interactions, and suggest high variability can occur in the availability of prey for higher trophic levels. |
format |
Thesis |
author |
Wang, Xian |
spellingShingle |
Wang, Xian Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska |
author_facet |
Wang, Xian |
author_sort |
Wang, Xian |
title |
Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska |
title_short |
Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska |
title_full |
Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska |
title_fullStr |
Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska |
title_full_unstemmed |
Zooplankton abundance, community structure, and oceanography northeast of Kodiak Island, Alaska |
title_sort |
zooplankton abundance, community structure, and oceanography northeast of kodiak island, alaska |
publishDate |
2007 |
url |
http://hdl.handle.net/11122/5895 |
geographic |
Fairbanks Gulf of Alaska |
geographic_facet |
Fairbanks Gulf of Alaska |
genre |
Kodiak Alaska Copepods |
genre_facet |
Kodiak Alaska Copepods |
op_relation |
http://hdl.handle.net/11122/5895 Program in Marine Science and Limnology |
_version_ |
1766058882758606848 |