Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua)
Atlantic cod (Gadus morhua) is a commercially important species, and therefore, understanding the influence of environmental factors and anthropogenic stressors on its early life stages is of considerable relevance. In this contribution, we apply a simple and generic energy-budget framework (DEBkiss...
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Language: | English |
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Online Access: | http://hdl.handle.net/11250/2563556 https://doi.org/10.1016/j.ecolmodel.2018.08.003 |
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ftsintef:oai:sintef.brage.unit.no:11250/2563556 2023-05-15T15:27:11+02:00 Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua) Jager, Tjalling Nepstad, Raymond Hansen, Bjørn Henrik Farkas, Julia 2018-10-10 application/pdf http://hdl.handle.net/11250/2563556 https://doi.org/10.1016/j.ecolmodel.2018.08.003 eng eng Elsevier Norges forskningsråd: 281093 urn:issn:0304-3800 http://hdl.handle.net/11250/2563556 https://doi.org/10.1016/j.ecolmodel.2018.08.003 cristin:1600722 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no Preprint manuscript © the author(s) 2018 CC-BY-NC-ND 213-219 385 Ecological Modelling Energy budget DEBkiss Gadus morhua Embryonic development modelling yolk absorption Journal article Peer reviewed 2018 ftsintef https://doi.org/10.1016/j.ecolmodel.2018.08.003 2021-08-04T12:00:17Z Atlantic cod (Gadus morhua) is a commercially important species, and therefore, understanding the influence of environmental factors and anthropogenic stressors on its early life stages is of considerable relevance. In this contribution, we apply a simple and generic energy-budget framework (DEBkiss) to data for the yolk-feeding stages of cod. The model is capable of explaining the changes in yolk volume, dry weight, oxygen use and body length, simultaneously with a small number of parameters. The calibrated model was subsequently successfully tested with other data sets. Interestingly, the light conditions after hatching affect growth and respiration rates, which is traced to a change in the maintenance costs (linked to swimming activity). Despite the satisfactory performance of the model, several uncertainties remain. Especially the bioenergetics around the point of complete yolk absorption require further attention, which is complicated by the fact that the behaviour around this point differed between data sets. The presented model can be used for exploring effects of stressors on early-life stages of cod, and likely for other aquatic egg-laying species as well. submittedVersion Article in Journal/Newspaper atlantic cod Gadus morhua SINTEF Open (Brage) Ecological Modelling 385 213 219 |
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Open Polar |
collection |
SINTEF Open (Brage) |
op_collection_id |
ftsintef |
language |
English |
topic |
Energy budget DEBkiss Gadus morhua Embryonic development modelling yolk absorption |
spellingShingle |
Energy budget DEBkiss Gadus morhua Embryonic development modelling yolk absorption Jager, Tjalling Nepstad, Raymond Hansen, Bjørn Henrik Farkas, Julia Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua) |
topic_facet |
Energy budget DEBkiss Gadus morhua Embryonic development modelling yolk absorption |
description |
Atlantic cod (Gadus morhua) is a commercially important species, and therefore, understanding the influence of environmental factors and anthropogenic stressors on its early life stages is of considerable relevance. In this contribution, we apply a simple and generic energy-budget framework (DEBkiss) to data for the yolk-feeding stages of cod. The model is capable of explaining the changes in yolk volume, dry weight, oxygen use and body length, simultaneously with a small number of parameters. The calibrated model was subsequently successfully tested with other data sets. Interestingly, the light conditions after hatching affect growth and respiration rates, which is traced to a change in the maintenance costs (linked to swimming activity). Despite the satisfactory performance of the model, several uncertainties remain. Especially the bioenergetics around the point of complete yolk absorption require further attention, which is complicated by the fact that the behaviour around this point differed between data sets. The presented model can be used for exploring effects of stressors on early-life stages of cod, and likely for other aquatic egg-laying species as well. submittedVersion |
format |
Article in Journal/Newspaper |
author |
Jager, Tjalling Nepstad, Raymond Hansen, Bjørn Henrik Farkas, Julia |
author_facet |
Jager, Tjalling Nepstad, Raymond Hansen, Bjørn Henrik Farkas, Julia |
author_sort |
Jager, Tjalling |
title |
Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua) |
title_short |
Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua) |
title_full |
Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua) |
title_fullStr |
Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua) |
title_full_unstemmed |
Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua) |
title_sort |
simple energy-budget model for yolk-feeding stages of atlantic cod (gadus morhua) |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2563556 https://doi.org/10.1016/j.ecolmodel.2018.08.003 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
213-219 385 Ecological Modelling |
op_relation |
Norges forskningsråd: 281093 urn:issn:0304-3800 http://hdl.handle.net/11250/2563556 https://doi.org/10.1016/j.ecolmodel.2018.08.003 cristin:1600722 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no Preprint manuscript © the author(s) 2018 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.ecolmodel.2018.08.003 |
container_title |
Ecological Modelling |
container_volume |
385 |
container_start_page |
213 |
op_container_end_page |
219 |
_version_ |
1766357639527137280 |