Early development of Calanus hyperboreus nauplii: Response to a changing ocean
To forecast effects of temperature changes on recruitment and population dynamics of the Arctic copepod Calanus hyperboreus, laboratory experiments investigating temperature and food effects on early development were performed in Disko Bay, western Greenland, in 2009, and ascent rates of C. hyperbor...
Published in: | Limnology and Oceanography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2013
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Online Access: | https://forskning.ruc.dk/da/publications/b5ca20a0-dd55-479c-b2fe-a8497e675a20 https://doi.org/10.4319/lo.2013.58.6.2109 https://hdl.handle.net/1800/b5ca20a0-dd55-479c-b2fe-a8497e675a20 |
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fturoskildefispu:oai:pure.atira.dk:publications/b5ca20a0-dd55-479c-b2fe-a8497e675a20 2023-05-15T14:30:33+02:00 Early development of Calanus hyperboreus nauplii: Response to a changing ocean Hansen, Benni Winding Jung-Madsen, Signe Gissel-Nielsen, Torkel Grønkjær, Peter Friis Møller, Eva 2013 https://forskning.ruc.dk/da/publications/b5ca20a0-dd55-479c-b2fe-a8497e675a20 https://doi.org/10.4319/lo.2013.58.6.2109 https://hdl.handle.net/1800/b5ca20a0-dd55-479c-b2fe-a8497e675a20 eng eng info:eu-repo/semantics/restrictedAccess Hansen , B W , Jung-Madsen , S , Gissel-Nielsen , T , Grønkjær , P & Friis Møller , E 2013 , ' Early development of Calanus hyperboreus nauplii: Response to a changing ocean ' , Limnology and Oceanography , vol. 58 , no. 6 , pp. 2109-2121 . https://doi.org/10.4319/lo.2013.58.6.2109 article 2013 fturoskildefispu https://doi.org/10.4319/lo.2013.58.6.2109 2022-12-11T06:57:48Z To forecast effects of temperature changes on recruitment and population dynamics of the Arctic copepod Calanus hyperboreus, laboratory experiments investigating temperature and food effects on early development were performed in Disko Bay, western Greenland, in 2009, and ascent rates of C. hyperboreus eggs collected in east Greenland were measured in the laboratory. Ascent rates were highly variable both between and within clutches, ranging from 0.7 to 27.7 m d−1, suggesting variability in the biochemical composition of the egg. Development of eggs were investigated between 0.8°C and 6.6°C, and hatching was fitted to a Belěhrádek temperature function (r2 > 0.99) with mean development time (MDT) of eggs ranging from 2.8 to 5.8 d. MDT of fed and starved nauplii was calculated for nauplii raised at 5°C. Fed nauplii developed through the first five nauplius stages (N1–N5) during 40 d of incubation, whereas development of starved nauplii ceased at N3. Nauplii were able to survive at least 30 d of starvation. Respiration rate was measured for N1 and N3 at 0°C, 5°C, and 10°C, and it increased with development stage and temperature from 0.05 ± 0.01 to 0.29 ± 0.08 nmol O2 nauplii−1 h−1 for N1 at 0°C and N3 at 10°C, respectively. A decrease in carbon and lipid content from egg to N3 indicates that nauplii are using stored lipids to cover their metabolic costs during the nonfeeding stages. Early stages of C. hyperboreus seem more affected by temperature than later stages, a vulnerability that might affect future recruitment. To forecast effects of temperature changes on recruitment and population dynamics of the Arctic copepod Calanus hyperboreus, laboratory experiments investigating temperature and food effects on early development were performed in Disko Bay, western Greenland, in 2009, and ascent rates of C. hyperboreus eggs collected in east Greenland were measured in the laboratory. Ascent rates were highly variable both between and within clutches, ranging from 0.7 to 27.7 m d−1, suggesting variability in the ... Article in Journal/Newspaper Arctic copepod Arctic Calanus hyperboreus Disko Bay East Greenland Greenland Roskilde University Research Portal (RUC) Arctic Greenland Limnology and Oceanography 58 6 2109 2121 |
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Open Polar |
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Roskilde University Research Portal (RUC) |
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fturoskildefispu |
language |
English |
description |
To forecast effects of temperature changes on recruitment and population dynamics of the Arctic copepod Calanus hyperboreus, laboratory experiments investigating temperature and food effects on early development were performed in Disko Bay, western Greenland, in 2009, and ascent rates of C. hyperboreus eggs collected in east Greenland were measured in the laboratory. Ascent rates were highly variable both between and within clutches, ranging from 0.7 to 27.7 m d−1, suggesting variability in the biochemical composition of the egg. Development of eggs were investigated between 0.8°C and 6.6°C, and hatching was fitted to a Belěhrádek temperature function (r2 > 0.99) with mean development time (MDT) of eggs ranging from 2.8 to 5.8 d. MDT of fed and starved nauplii was calculated for nauplii raised at 5°C. Fed nauplii developed through the first five nauplius stages (N1–N5) during 40 d of incubation, whereas development of starved nauplii ceased at N3. Nauplii were able to survive at least 30 d of starvation. Respiration rate was measured for N1 and N3 at 0°C, 5°C, and 10°C, and it increased with development stage and temperature from 0.05 ± 0.01 to 0.29 ± 0.08 nmol O2 nauplii−1 h−1 for N1 at 0°C and N3 at 10°C, respectively. A decrease in carbon and lipid content from egg to N3 indicates that nauplii are using stored lipids to cover their metabolic costs during the nonfeeding stages. Early stages of C. hyperboreus seem more affected by temperature than later stages, a vulnerability that might affect future recruitment. To forecast effects of temperature changes on recruitment and population dynamics of the Arctic copepod Calanus hyperboreus, laboratory experiments investigating temperature and food effects on early development were performed in Disko Bay, western Greenland, in 2009, and ascent rates of C. hyperboreus eggs collected in east Greenland were measured in the laboratory. Ascent rates were highly variable both between and within clutches, ranging from 0.7 to 27.7 m d−1, suggesting variability in the ... |
format |
Article in Journal/Newspaper |
author |
Hansen, Benni Winding Jung-Madsen, Signe Gissel-Nielsen, Torkel Grønkjær, Peter Friis Møller, Eva |
spellingShingle |
Hansen, Benni Winding Jung-Madsen, Signe Gissel-Nielsen, Torkel Grønkjær, Peter Friis Møller, Eva Early development of Calanus hyperboreus nauplii: Response to a changing ocean |
author_facet |
Hansen, Benni Winding Jung-Madsen, Signe Gissel-Nielsen, Torkel Grønkjær, Peter Friis Møller, Eva |
author_sort |
Hansen, Benni Winding |
title |
Early development of Calanus hyperboreus nauplii: Response to a changing ocean |
title_short |
Early development of Calanus hyperboreus nauplii: Response to a changing ocean |
title_full |
Early development of Calanus hyperboreus nauplii: Response to a changing ocean |
title_fullStr |
Early development of Calanus hyperboreus nauplii: Response to a changing ocean |
title_full_unstemmed |
Early development of Calanus hyperboreus nauplii: Response to a changing ocean |
title_sort |
early development of calanus hyperboreus nauplii: response to a changing ocean |
publishDate |
2013 |
url |
https://forskning.ruc.dk/da/publications/b5ca20a0-dd55-479c-b2fe-a8497e675a20 https://doi.org/10.4319/lo.2013.58.6.2109 https://hdl.handle.net/1800/b5ca20a0-dd55-479c-b2fe-a8497e675a20 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic copepod Arctic Calanus hyperboreus Disko Bay East Greenland Greenland |
genre_facet |
Arctic copepod Arctic Calanus hyperboreus Disko Bay East Greenland Greenland |
op_source |
Hansen , B W , Jung-Madsen , S , Gissel-Nielsen , T , Grønkjær , P & Friis Møller , E 2013 , ' Early development of Calanus hyperboreus nauplii: Response to a changing ocean ' , Limnology and Oceanography , vol. 58 , no. 6 , pp. 2109-2121 . https://doi.org/10.4319/lo.2013.58.6.2109 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.4319/lo.2013.58.6.2109 |
container_title |
Limnology and Oceanography |
container_volume |
58 |
container_issue |
6 |
container_start_page |
2109 |
op_container_end_page |
2121 |
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1766304384448200704 |