Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska
Pseudocalanus species are important contributors to the secondary production of the northern hemisphere mid- to high-latitude oceans. In the coastal Gulf of Alaska, Pseudocalanus are present year round and are represented by three species. In 2001, Pseudocalanus mimus was the dominant Pseudocalanus...
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2005
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fthighwire:oai:open-archive.highwire.org:plankt:27/5/415 2023-05-15T18:03:42+02:00 Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska Napp, Jeffrey M. Hopcroft, Russell R. Baier, Christine T. Clarke, Cheryl 2005-05-01 00:00:00.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/27/5/415 https://doi.org/10.1093/plankt/fbi015 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/27/5/415 http://dx.doi.org/10.1093/plankt/fbi015 Copyright (C) 2005, Oxford University Press ORIGINAL ARTICLES TEXT 2005 fthighwire https://doi.org/10.1093/plankt/fbi015 2013-05-26T13:54:41Z Pseudocalanus species are important contributors to the secondary production of the northern hemisphere mid- to high-latitude oceans. In the coastal Gulf of Alaska, Pseudocalanus are present year round and are represented by three species. In 2001, Pseudocalanus mimus was the dominant Pseudocalanus species on the shelf during spring and summer, comprising 30–100% of the total, while Pseudocalanus newmani dominated in Prince William Sound (10–90%). Pseudocalanus minutus were only abundant in Prince William Sound during early spring. Egg production (by number and volume) was a function of female prosome length and decreased from spring to summer; however, significant variability was attributable to regional influences that were independent of size. For the same sized female, P. newmani produced more eggs per clutch than P. mimus . Pseudocalanus mimus , however, tended to have a larger mean egg size than P. newmani . Consequently, clutch volumes of the two species were indistinguishable. Pseudocalanus egg production rates (EPRs) (eggs female−1 day−1) were lower in July and August (ca. 2–4) than April and May (ca. 1–9), but total egg production by the population (eggs day−1) was nearly equivalent for the two time periods due to higher female concentrations in summer. Text Pseudocalanus minutus Alaska HighWire Press (Stanford University) Gulf of Alaska Journal of Plankton Research 27 5 415 426 |
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Open Polar |
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HighWire Press (Stanford University) |
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fthighwire |
language |
English |
topic |
ORIGINAL ARTICLES |
spellingShingle |
ORIGINAL ARTICLES Napp, Jeffrey M. Hopcroft, Russell R. Baier, Christine T. Clarke, Cheryl Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska |
topic_facet |
ORIGINAL ARTICLES |
description |
Pseudocalanus species are important contributors to the secondary production of the northern hemisphere mid- to high-latitude oceans. In the coastal Gulf of Alaska, Pseudocalanus are present year round and are represented by three species. In 2001, Pseudocalanus mimus was the dominant Pseudocalanus species on the shelf during spring and summer, comprising 30–100% of the total, while Pseudocalanus newmani dominated in Prince William Sound (10–90%). Pseudocalanus minutus were only abundant in Prince William Sound during early spring. Egg production (by number and volume) was a function of female prosome length and decreased from spring to summer; however, significant variability was attributable to regional influences that were independent of size. For the same sized female, P. newmani produced more eggs per clutch than P. mimus . Pseudocalanus mimus , however, tended to have a larger mean egg size than P. newmani . Consequently, clutch volumes of the two species were indistinguishable. Pseudocalanus egg production rates (EPRs) (eggs female−1 day−1) were lower in July and August (ca. 2–4) than April and May (ca. 1–9), but total egg production by the population (eggs day−1) was nearly equivalent for the two time periods due to higher female concentrations in summer. |
format |
Text |
author |
Napp, Jeffrey M. Hopcroft, Russell R. Baier, Christine T. Clarke, Cheryl |
author_facet |
Napp, Jeffrey M. Hopcroft, Russell R. Baier, Christine T. Clarke, Cheryl |
author_sort |
Napp, Jeffrey M. |
title |
Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska |
title_short |
Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska |
title_full |
Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska |
title_fullStr |
Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska |
title_full_unstemmed |
Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska |
title_sort |
distribution and species-specific egg production of pseudocalanus in the gulf of alaska |
publisher |
Oxford University Press |
publishDate |
2005 |
url |
http://plankt.oxfordjournals.org/cgi/content/short/27/5/415 https://doi.org/10.1093/plankt/fbi015 |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
Pseudocalanus minutus Alaska |
genre_facet |
Pseudocalanus minutus Alaska |
op_relation |
http://plankt.oxfordjournals.org/cgi/content/short/27/5/415 http://dx.doi.org/10.1093/plankt/fbi015 |
op_rights |
Copyright (C) 2005, Oxford University Press |
op_doi |
https://doi.org/10.1093/plankt/fbi015 |
container_title |
Journal of Plankton Research |
container_volume |
27 |
container_issue |
5 |
container_start_page |
415 |
op_container_end_page |
426 |
_version_ |
1766174694894993408 |