Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf
<qd> Madsen, M. L., Gaard, E., and Hansen, B. W. 2008. Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf. – ICES Journal of Marine Science, 65. </qd>Time of ascendance and initiation of reproduction in Calanus finma...
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fthighwire:oai:open-archive.highwire.org:icesjms:fsn097v1 2023-05-15T15:47:51+02:00 Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf Madsen, Matias L. Gaard, Eilif Hansen, Benni W. 2008-06-10 23:48:10.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/fsn097v1 https://doi.org/10.1093/icesjms/fsn097 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/fsn097v1 http://dx.doi.org/10.1093/icesjms/fsn097 Copyright (C) 2008, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Article TEXT 2008 fthighwire https://doi.org/10.1093/icesjms/fsn097 2013-05-26T22:26:33Z <qd> Madsen, M. L., Gaard, E., and Hansen, B. W. 2008. Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf. – ICES Journal of Marine Science, 65. </qd>Time of ascendance and initiation of reproduction in Calanus finmarchicus is closely correlated with the phytoplankton spring bloom. However, significant egg production can take place before the bloom, fuelled by mobilizing stored wax-ester lipids. Calanus finmarchicus from stations on the Faroe Shelf were compared with specimens collected off the shelf. Biological parameters such as gut contents, egg production, developmental stage, and lipid content were determined and correlated with phytoplankton concentration and spatial distribution along two transects in late April 2003 across the shelf northeast and southwest of the Faroe Islands. Grazing by C . finmarchicus on phytoplankton was significantly lower northeast of the Faroe plateau. However, the egg production was generally high for a pre-bloom situation, with significantly higher rates of egg production on the shelf than off it, along both transects. Wax-ester content of female C . finmarchicus was significantly higher and more variable at off-shelf stations than on the shelf (<2 µg female−1). From this, we suggest that off-shelf C . finmarchicus had recently emerged from overwintering depths, in contrast to individuals from stations on the shelf, which had been in the upper water masses for some time. Females (from off-shelf stations) most likely supported the initial egg production from their wax-ester reserves. Text Calanus finmarchicus Faroe Islands HighWire Press (Stanford University) Faroe Islands Faroe Shelf ENVELOPE(-6.000,-6.000,62.000,62.000) ICES Journal of Marine Science 65 7 1112 1121 |
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HighWire Press (Stanford University) |
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fthighwire |
language |
English |
topic |
Article |
spellingShingle |
Article Madsen, Matias L. Gaard, Eilif Hansen, Benni W. Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf |
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Article |
description |
<qd> Madsen, M. L., Gaard, E., and Hansen, B. W. 2008. Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf. – ICES Journal of Marine Science, 65. </qd>Time of ascendance and initiation of reproduction in Calanus finmarchicus is closely correlated with the phytoplankton spring bloom. However, significant egg production can take place before the bloom, fuelled by mobilizing stored wax-ester lipids. Calanus finmarchicus from stations on the Faroe Shelf were compared with specimens collected off the shelf. Biological parameters such as gut contents, egg production, developmental stage, and lipid content were determined and correlated with phytoplankton concentration and spatial distribution along two transects in late April 2003 across the shelf northeast and southwest of the Faroe Islands. Grazing by C . finmarchicus on phytoplankton was significantly lower northeast of the Faroe plateau. However, the egg production was generally high for a pre-bloom situation, with significantly higher rates of egg production on the shelf than off it, along both transects. Wax-ester content of female C . finmarchicus was significantly higher and more variable at off-shelf stations than on the shelf (<2 µg female−1). From this, we suggest that off-shelf C . finmarchicus had recently emerged from overwintering depths, in contrast to individuals from stations on the shelf, which had been in the upper water masses for some time. Females (from off-shelf stations) most likely supported the initial egg production from their wax-ester reserves. |
format |
Text |
author |
Madsen, Matias L. Gaard, Eilif Hansen, Benni W. |
author_facet |
Madsen, Matias L. Gaard, Eilif Hansen, Benni W. |
author_sort |
Madsen, Matias L. |
title |
Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf |
title_short |
Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf |
title_full |
Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf |
title_fullStr |
Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf |
title_full_unstemmed |
Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf |
title_sort |
wax-ester mobilization by female calanus finmarchicus (gunnerus) during spring ascendance and advection to the faroe shelf |
publisher |
Oxford University Press |
publishDate |
2008 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/fsn097v1 https://doi.org/10.1093/icesjms/fsn097 |
long_lat |
ENVELOPE(-6.000,-6.000,62.000,62.000) |
geographic |
Faroe Islands Faroe Shelf |
geographic_facet |
Faroe Islands Faroe Shelf |
genre |
Calanus finmarchicus Faroe Islands |
genre_facet |
Calanus finmarchicus Faroe Islands |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/fsn097v1 http://dx.doi.org/10.1093/icesjms/fsn097 |
op_rights |
Copyright (C) 2008, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsn097 |
container_title |
ICES Journal of Marine Science |
container_volume |
65 |
container_issue |
7 |
container_start_page |
1112 |
op_container_end_page |
1121 |
_version_ |
1766382815588384768 |