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...
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crwiley:10.4319/lo.2013.58.6.2109 2024-09-15T17:52:29+00:00 Early development of Calanus hyperboreus nauplii: Response to a changing ocean Jung-Madsen, Signe Nielsen, Torkel Gissel Grønkjær, Peter Hansen, Benni Winding Møller, Eva Friis 2013 http://dx.doi.org/10.4319/lo.2013.58.6.2109 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2013.58.6.2109 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2013.58.6.2109 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 58, issue 6, page 2109-2121 ISSN 0024-3590 1939-5590 journal-article 2013 crwiley https://doi.org/10.4319/lo.2013.58.6.2109 2024-08-30T04:09:14Z 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 Belčhrádek temperature function ( r 2 > 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 O 2 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. Article in Journal/Newspaper Arctic copepod Calanus hyperboreus Disko Bay East Greenland Greenland Wiley Online Library Limnology and Oceanography 58 6 2109 2121 |
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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 Belčhrádek temperature function ( r 2 > 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 O 2 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. |
format |
Article in Journal/Newspaper |
author |
Jung-Madsen, Signe Nielsen, Torkel Gissel Grønkjær, Peter Hansen, Benni Winding Møller, Eva Friis |
spellingShingle |
Jung-Madsen, Signe Nielsen, Torkel Gissel Grønkjær, Peter Hansen, Benni Winding Møller, Eva Friis Early development of Calanus hyperboreus nauplii: Response to a changing ocean |
author_facet |
Jung-Madsen, Signe Nielsen, Torkel Gissel Grønkjær, Peter Hansen, Benni Winding Møller, Eva Friis |
author_sort |
Jung-Madsen, Signe |
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 |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.4319/lo.2013.58.6.2109 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2013.58.6.2109 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2013.58.6.2109 |
genre |
Arctic copepod Calanus hyperboreus Disko Bay East Greenland Greenland |
genre_facet |
Arctic copepod Calanus hyperboreus Disko Bay East Greenland Greenland |
op_source |
Limnology and Oceanography volume 58, issue 6, page 2109-2121 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
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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1810294504758968320 |