Climate-induced variability in Calanus marshallae populations
Calanus marshallae is the dominant mesozooplankton copepod species over the south-eastern Bering Sea middle shelf. Climate-induced changes in the magnitude and timing of production by C. marshallae may affect the living marine resources of the Bering Sea shelf ecosystem. We examined springtime abund...
Published in: | Journal of Plankton Research |
---|---|
Main Authors: | , |
Format: | Text |
Language: | English |
Published: |
Oxford University Press
2003
|
Subjects: | |
Online Access: | http://plankt.oxfordjournals.org/cgi/content/short/25/7/771 https://doi.org/10.1093/plankt/25.7.771 |
id |
fthighwire:oai:open-archive.highwire.org:plankt:25/7/771 |
---|---|
record_format |
openpolar |
spelling |
fthighwire:oai:open-archive.highwire.org:plankt:25/7/771 2023-05-15T15:43:32+02:00 Climate-induced variability in Calanus marshallae populations Baier, Christine T. Napp, Jeffrey M. 2003-07-01 00:00:00.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/25/7/771 https://doi.org/10.1093/plankt/25.7.771 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/25/7/771 http://dx.doi.org/10.1093/plankt/25.7.771 Copyright (C) 2003, Oxford University Press ORIGINAL ARTICLES TEXT 2003 fthighwire https://doi.org/10.1093/plankt/25.7.771 2013-05-26T15:13:40Z Calanus marshallae is the dominant mesozooplankton copepod species over the south-eastern Bering Sea middle shelf. Climate-induced changes in the magnitude and timing of production by C. marshallae may affect the living marine resources of the Bering Sea shelf ecosystem. We examined springtime abundance, gonadal maturity and stage distributions of C. marshallae copepodites during five consecutive years (1995–1999) that spanned the range of variability observed over the past 34 years in terms of water temperature and ice cover. We compared our results with previous work conducted during cool (1980) and warm (1981) years [ Smith, S. L. and Vidal, J. (1986) Cont. Shelf Res., <volume-nr>5</volume-nr> , <first-page>215</first-page>–239 ]. The spring phytoplankton bloom began relatively early in association with ice (1995, 1997, 1999), but began late when ice was absent or retreated early (1996, 1998). Egg production began well before the bloom and continued over a long duration. Copepodites, however, were recruited during a relatively short period, coincident with the spring phytoplankton bloom. The relationship between brood stock and spring-generation copepodite abundances was weak. Copepodite concentrations during May were greatest in years of most southerly ice extent. Copepodite populations were highly variable among years, reflecting interannual variability in the atmosphere–ice–ocean system. Text Bering Sea HighWire Press (Stanford University) Bering Sea Journal of Plankton Research 25 7 771 782 |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
ORIGINAL ARTICLES |
spellingShingle |
ORIGINAL ARTICLES Baier, Christine T. Napp, Jeffrey M. Climate-induced variability in Calanus marshallae populations |
topic_facet |
ORIGINAL ARTICLES |
description |
Calanus marshallae is the dominant mesozooplankton copepod species over the south-eastern Bering Sea middle shelf. Climate-induced changes in the magnitude and timing of production by C. marshallae may affect the living marine resources of the Bering Sea shelf ecosystem. We examined springtime abundance, gonadal maturity and stage distributions of C. marshallae copepodites during five consecutive years (1995–1999) that spanned the range of variability observed over the past 34 years in terms of water temperature and ice cover. We compared our results with previous work conducted during cool (1980) and warm (1981) years [ Smith, S. L. and Vidal, J. (1986) Cont. Shelf Res., <volume-nr>5</volume-nr> , <first-page>215</first-page>–239 ]. The spring phytoplankton bloom began relatively early in association with ice (1995, 1997, 1999), but began late when ice was absent or retreated early (1996, 1998). Egg production began well before the bloom and continued over a long duration. Copepodites, however, were recruited during a relatively short period, coincident with the spring phytoplankton bloom. The relationship between brood stock and spring-generation copepodite abundances was weak. Copepodite concentrations during May were greatest in years of most southerly ice extent. Copepodite populations were highly variable among years, reflecting interannual variability in the atmosphere–ice–ocean system. |
format |
Text |
author |
Baier, Christine T. Napp, Jeffrey M. |
author_facet |
Baier, Christine T. Napp, Jeffrey M. |
author_sort |
Baier, Christine T. |
title |
Climate-induced variability in Calanus marshallae populations |
title_short |
Climate-induced variability in Calanus marshallae populations |
title_full |
Climate-induced variability in Calanus marshallae populations |
title_fullStr |
Climate-induced variability in Calanus marshallae populations |
title_full_unstemmed |
Climate-induced variability in Calanus marshallae populations |
title_sort |
climate-induced variability in calanus marshallae populations |
publisher |
Oxford University Press |
publishDate |
2003 |
url |
http://plankt.oxfordjournals.org/cgi/content/short/25/7/771 https://doi.org/10.1093/plankt/25.7.771 |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_relation |
http://plankt.oxfordjournals.org/cgi/content/short/25/7/771 http://dx.doi.org/10.1093/plankt/25.7.771 |
op_rights |
Copyright (C) 2003, Oxford University Press |
op_doi |
https://doi.org/10.1093/plankt/25.7.771 |
container_title |
Journal of Plankton Research |
container_volume |
25 |
container_issue |
7 |
container_start_page |
771 |
op_container_end_page |
782 |
_version_ |
1766377714052235264 |