Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms
Cohort development and nutritional conditions of Calanus finmarchicus were studied in experimental seawater mesocosms in a Norwegian fjord. Artificially added cohorts developed from early naupliar stages to copepodite stage IV in 41–43 days at ambient temperature increasing from 4.3 to 6.8°C. A natu...
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fthighwire:oai:open-archive.highwire.org:icesjms:57/6/1740 2023-05-15T15:47:53+02:00 Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms Hygum, B. H. Rey, C. Hansen, B. W. Carlotti, F. 2000-12-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/57/6/1740 https://doi.org/10.1006/jmsc.2000.0956 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/57/6/1740 http://dx.doi.org/10.1006/jmsc.2000.0956 Copyright (C) 2000, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2000 fthighwire https://doi.org/10.1006/jmsc.2000.0956 2013-05-27T04:57:18Z Cohort development and nutritional conditions of Calanus finmarchicus were studied in experimental seawater mesocosms in a Norwegian fjord. Artificially added cohorts developed from early naupliar stages to copepodite stage IV in 41–43 days at ambient temperature increasing from 4.3 to 6.8°C. A natural stock of C. finmarchicus , initially dominated by early copepodite stages, developed to CV, males and females. Total storage lipid increased exponentially until CV. Individual body carbon weight increased sigmoidally with age. Relationship of body carbon weight (W, μg) to prosome length (L, μm) determined for copepodites and adults (W=2.6×10−10L3.45, r2=0.92) showed a higher weight than from in situ studies. This investigation demonstrates (i) that cohorts of C. finmarchicus can be reared successfully in mesocosms, (ii) a good nutritional state of copepods in terms of body carbon content and lipid reserves, and (iii) that part of the final CV moulted to both males and females. Text Calanus finmarchicus Copepods HighWire Press (Stanford University) ICES Journal of Marine Science 57 6 1740 1751 |
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English |
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Articles Hygum, B. H. Rey, C. Hansen, B. W. Carlotti, F. Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms |
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description |
Cohort development and nutritional conditions of Calanus finmarchicus were studied in experimental seawater mesocosms in a Norwegian fjord. Artificially added cohorts developed from early naupliar stages to copepodite stage IV in 41–43 days at ambient temperature increasing from 4.3 to 6.8°C. A natural stock of C. finmarchicus , initially dominated by early copepodite stages, developed to CV, males and females. Total storage lipid increased exponentially until CV. Individual body carbon weight increased sigmoidally with age. Relationship of body carbon weight (W, μg) to prosome length (L, μm) determined for copepodites and adults (W=2.6×10−10L3.45, r2=0.92) showed a higher weight than from in situ studies. This investigation demonstrates (i) that cohorts of C. finmarchicus can be reared successfully in mesocosms, (ii) a good nutritional state of copepods in terms of body carbon content and lipid reserves, and (iii) that part of the final CV moulted to both males and females. |
format |
Text |
author |
Hygum, B. H. Rey, C. Hansen, B. W. Carlotti, F. |
author_facet |
Hygum, B. H. Rey, C. Hansen, B. W. Carlotti, F. |
author_sort |
Hygum, B. H. |
title |
Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms |
title_short |
Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms |
title_full |
Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms |
title_fullStr |
Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms |
title_full_unstemmed |
Rearing cohorts of Calanus finmarchicus (Gunnerus) in mesocosms |
title_sort |
rearing cohorts of calanus finmarchicus (gunnerus) in mesocosms |
publisher |
Oxford University Press |
publishDate |
2000 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/57/6/1740 https://doi.org/10.1006/jmsc.2000.0956 |
genre |
Calanus finmarchicus Copepods |
genre_facet |
Calanus finmarchicus Copepods |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/57/6/1740 http://dx.doi.org/10.1006/jmsc.2000.0956 |
op_rights |
Copyright (C) 2000, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1006/jmsc.2000.0956 |
container_title |
ICES Journal of Marine Science |
container_volume |
57 |
container_issue |
6 |
container_start_page |
1740 |
op_container_end_page |
1751 |
_version_ |
1766382842452901888 |