Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska
Abstract Interannual copepod abundance (number m−3) and sea surface temperatures (SST, 2-m depth) were examined from four stations in Icy Strait, southeastern Alaska, monthly from May to September, 1997–2002. SST was generally lowest in May (≅7°C), increased rapidly to a summer peak (≅12°C), and dec...
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croxfordunivpr:10.1016/j.icesjms.2004.03.017 2023-12-31T10:24:05+01:00 Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska Park, Wongyu Sturdevant, Molly Orsi, Joseph Wertheimer, Alex Fergusson, Emily Heard, William Shirley, Thomas 2004 http://dx.doi.org/10.1016/j.icesjms.2004.03.017 http://academic.oup.com/icesjms/article-pdf/61/4/464/29122056/61-4-464.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 61, issue 4, page 464-477 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2004 croxfordunivpr https://doi.org/10.1016/j.icesjms.2004.03.017 2023-12-06T08:42:20Z Abstract Interannual copepod abundance (number m−3) and sea surface temperatures (SST, 2-m depth) were examined from four stations in Icy Strait, southeastern Alaska, monthly from May to September, 1997–2002. SST was generally lowest in May (≅7°C), increased rapidly to a summer peak (≅12°C), and declined again by September. SST was relatively high in the El Niño year, 1998, and was low during a regional cold event, 2002, compared to other years. Overall, copepods constituted 18.8% of the total biomass and 88.2% of zooplankton abundance, and included >34 species. The common copepod species were grouped into two size classes by total length (TL), those >2.5 mm (11.4% biomass, 24.2% abundance) and those <2.5 mm (7.4% biomass, 64.0% abundance). In order of dominance, large species included Metridia ochotensis, Calanus marshallae, M. pacificus, and Neocalanus spp. and small species included Pseudocalanus spp., Acartia longiremis, and Centropages abdominalis. Overall, the small species were more abundant than the large species. Densities of large copepods were relatively low compared to those of small copepods during El Niño (1998) and a cold year (2002), suggesting that large copepods with long lifespans are more sensitive to ocean climate fluctuation. Article in Journal/Newspaper Alaska Copepods Oxford University Press (via Crossref) ICES Journal of Marine Science 61 4 464 477 |
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Open Polar |
collection |
Oxford University Press (via Crossref) |
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croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Park, Wongyu Sturdevant, Molly Orsi, Joseph Wertheimer, Alex Fergusson, Emily Heard, William Shirley, Thomas Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Interannual copepod abundance (number m−3) and sea surface temperatures (SST, 2-m depth) were examined from four stations in Icy Strait, southeastern Alaska, monthly from May to September, 1997–2002. SST was generally lowest in May (≅7°C), increased rapidly to a summer peak (≅12°C), and declined again by September. SST was relatively high in the El Niño year, 1998, and was low during a regional cold event, 2002, compared to other years. Overall, copepods constituted 18.8% of the total biomass and 88.2% of zooplankton abundance, and included >34 species. The common copepod species were grouped into two size classes by total length (TL), those >2.5 mm (11.4% biomass, 24.2% abundance) and those <2.5 mm (7.4% biomass, 64.0% abundance). In order of dominance, large species included Metridia ochotensis, Calanus marshallae, M. pacificus, and Neocalanus spp. and small species included Pseudocalanus spp., Acartia longiremis, and Centropages abdominalis. Overall, the small species were more abundant than the large species. Densities of large copepods were relatively low compared to those of small copepods during El Niño (1998) and a cold year (2002), suggesting that large copepods with long lifespans are more sensitive to ocean climate fluctuation. |
format |
Article in Journal/Newspaper |
author |
Park, Wongyu Sturdevant, Molly Orsi, Joseph Wertheimer, Alex Fergusson, Emily Heard, William Shirley, Thomas |
author_facet |
Park, Wongyu Sturdevant, Molly Orsi, Joseph Wertheimer, Alex Fergusson, Emily Heard, William Shirley, Thomas |
author_sort |
Park, Wongyu |
title |
Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska |
title_short |
Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska |
title_full |
Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska |
title_fullStr |
Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska |
title_full_unstemmed |
Interannual abundance patterns of copepods during an ENSO event in Icy Strait, southeastern Alaska |
title_sort |
interannual abundance patterns of copepods during an enso event in icy strait, southeastern alaska |
publisher |
Oxford University Press (OUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1016/j.icesjms.2004.03.017 http://academic.oup.com/icesjms/article-pdf/61/4/464/29122056/61-4-464.pdf |
genre |
Alaska Copepods |
genre_facet |
Alaska Copepods |
op_source |
ICES Journal of Marine Science volume 61, issue 4, page 464-477 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/j.icesjms.2004.03.017 |
container_title |
ICES Journal of Marine Science |
container_volume |
61 |
container_issue |
4 |
container_start_page |
464 |
op_container_end_page |
477 |
_version_ |
1786835953911857152 |