The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model
Understanding larval growth, mediated by the interaction of early life traits and environmental conditions, is crucial to elucidate population dynamics. We used a bioenergetic model as an integrative tool to simulate the growth of Arctic cod (Boreogadus saida) larvae and to test the sensitivity of m...
Published in: | Elementa: Science of the Anthropocene |
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Language: | English |
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Online Access: | https://hdl.handle.net/11250/2999210 https://doi.org/10.1525/elementa.2021.00045 |
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ftimr:oai:imr.brage.unit.no:11250/2999210 2023-05-15T14:30:22+02:00 The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model David, Carmen L. Ji, Rubao Bouchar, Caroline Hop, Haakon Hutchings, Jeffrey 2022 application/pdf https://hdl.handle.net/11250/2999210 https://doi.org/10.1525/elementa.2021.00045 eng eng Elementa: Science of the Anthropocene. 2022, 10 (1), . urn:issn:2325-1026 https://hdl.handle.net/11250/2999210 https://doi.org/10.1525/elementa.2021.00045 cristin:2021448 19 10 Elementa: Science of the Anthropocene 1 Peer reviewed Journal article 2022 ftimr https://doi.org/10.1525/elementa.2021.00045 2022-06-22T22:40:31Z Understanding larval growth, mediated by the interaction of early life traits and environmental conditions, is crucial to elucidate population dynamics. We used a bioenergetic model as an integrative tool to simulate the growth of Arctic cod (Boreogadus saida) larvae and to test the sensitivity of modeled growth to temperature and food quantity and quality. The growth was computed as the energy gained through food consumption minus the energy lost through respiration and other metabolic processes. We extended a previously published bioenergetic model to cover the full range of larval length and used a simplified feeding module. This simplification allowed us to build a predictive tool that can be applied to larval Arctic cod at a large spatial scale. Our model suggested that with subzero temperatures in the High Arctic, larvae need to increase food consumption in order to reach the observed length-at-age in late summer. The modeled growth agreed well with the field observations in the High Arctic but was 2–3 times higher than the laboratory-derived growth rate, probably due to differences in food type and selective mortality. Our study reveals important knowledge gaps in our understanding of larval cod growth in the High Arctic, including the lack of empirical estimations of daily ration and respiration for larvae under the natural habitat temperatures. publishedVersion Article in Journal/Newspaper Arctic cod Arctic Boreogadus saida Institute for Marine Research: Brage IMR Arctic Elementa: Science of the Anthropocene 10 1 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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language |
English |
description |
Understanding larval growth, mediated by the interaction of early life traits and environmental conditions, is crucial to elucidate population dynamics. We used a bioenergetic model as an integrative tool to simulate the growth of Arctic cod (Boreogadus saida) larvae and to test the sensitivity of modeled growth to temperature and food quantity and quality. The growth was computed as the energy gained through food consumption minus the energy lost through respiration and other metabolic processes. We extended a previously published bioenergetic model to cover the full range of larval length and used a simplified feeding module. This simplification allowed us to build a predictive tool that can be applied to larval Arctic cod at a large spatial scale. Our model suggested that with subzero temperatures in the High Arctic, larvae need to increase food consumption in order to reach the observed length-at-age in late summer. The modeled growth agreed well with the field observations in the High Arctic but was 2–3 times higher than the laboratory-derived growth rate, probably due to differences in food type and selective mortality. Our study reveals important knowledge gaps in our understanding of larval cod growth in the High Arctic, including the lack of empirical estimations of daily ration and respiration for larvae under the natural habitat temperatures. publishedVersion |
format |
Article in Journal/Newspaper |
author |
David, Carmen L. Ji, Rubao Bouchar, Caroline Hop, Haakon Hutchings, Jeffrey |
spellingShingle |
David, Carmen L. Ji, Rubao Bouchar, Caroline Hop, Haakon Hutchings, Jeffrey The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model |
author_facet |
David, Carmen L. Ji, Rubao Bouchar, Caroline Hop, Haakon Hutchings, Jeffrey |
author_sort |
David, Carmen L. |
title |
The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model |
title_short |
The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model |
title_full |
The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model |
title_fullStr |
The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model |
title_full_unstemmed |
The interactive effects of temperature and food consumption on growth of larval Arctic cod (Boreogadus saida): A bioenergetic model |
title_sort |
interactive effects of temperature and food consumption on growth of larval arctic cod (boreogadus saida): a bioenergetic model |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/2999210 https://doi.org/10.1525/elementa.2021.00045 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic Boreogadus saida |
genre_facet |
Arctic cod Arctic Boreogadus saida |
op_source |
19 10 Elementa: Science of the Anthropocene 1 |
op_relation |
Elementa: Science of the Anthropocene. 2022, 10 (1), . urn:issn:2325-1026 https://hdl.handle.net/11250/2999210 https://doi.org/10.1525/elementa.2021.00045 cristin:2021448 |
op_doi |
https://doi.org/10.1525/elementa.2021.00045 |
container_title |
Elementa: Science of the Anthropocene |
container_volume |
10 |
container_issue |
1 |
_version_ |
1766304219244003328 |