The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models
The consumption rates in fish are important but also often weak points in multispecies models. In the Barents Sea multispecies model (MULTSPEC), as in many other models, quantitative stomach content data are combined with gastric evacuation data or models to produce consumption rates of important pr...
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ftimr:oai:imr.brage.unit.no:11250/104769 2023-05-15T14:30:23+02:00 The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models Bogstad, Bjarte Mehl, Sigbjørn 1990 application/pdf http://hdl.handle.net/11250/104769 eng eng ICES ICES CM Documents;1990/G:22 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/104769 12 s. multispecies model flerartsmodell stomach data magedata arctic cod arktisk torsk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Working paper 1990 ftimr 2021-09-23T20:14:44Z The consumption rates in fish are important but also often weak points in multispecies models. In the Barents Sea multispecies model (MULTSPEC), as in many other models, quantitative stomach content data are combined with gastric evacuation data or models to produce consumption rates of important prey species. To evaluate the evacuation model presently used for cod in the Barents Sea and the derived consumption rates, we have combined stomach data from 1984 with five other evacuation models for cod. The results are compared and judged against data on prey stock sizes, individual cod growth, daily rations and food conversion efficiency. The rations derived from the different models ranged from 0.5 to 1.2% of the BW daily on average for all agegroups of cod or from 2.1 to 4.4 times the biomass of the total cod stock annually. Food conversion efficiency varied between 6 and 59% for the different models and agegroups. Report Arctic cod Arctic Arktis* Barents Sea Northeast Arctic cod Institute for Marine Research: Brage IMR Arctic Barents Sea |
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Open Polar |
collection |
Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
topic |
multispecies model flerartsmodell stomach data magedata arctic cod arktisk torsk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
spellingShingle |
multispecies model flerartsmodell stomach data magedata arctic cod arktisk torsk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Bogstad, Bjarte Mehl, Sigbjørn The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models |
topic_facet |
multispecies model flerartsmodell stomach data magedata arctic cod arktisk torsk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
description |
The consumption rates in fish are important but also often weak points in multispecies models. In the Barents Sea multispecies model (MULTSPEC), as in many other models, quantitative stomach content data are combined with gastric evacuation data or models to produce consumption rates of important prey species. To evaluate the evacuation model presently used for cod in the Barents Sea and the derived consumption rates, we have combined stomach data from 1984 with five other evacuation models for cod. The results are compared and judged against data on prey stock sizes, individual cod growth, daily rations and food conversion efficiency. The rations derived from the different models ranged from 0.5 to 1.2% of the BW daily on average for all agegroups of cod or from 2.1 to 4.4 times the biomass of the total cod stock annually. Food conversion efficiency varied between 6 and 59% for the different models and agegroups. |
format |
Report |
author |
Bogstad, Bjarte Mehl, Sigbjørn |
author_facet |
Bogstad, Bjarte Mehl, Sigbjørn |
author_sort |
Bogstad, Bjarte |
title |
The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models |
title_short |
The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models |
title_full |
The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models |
title_fullStr |
The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models |
title_full_unstemmed |
The consumption rate of northeast Arctic cod - A comparison of gastric evacuation models |
title_sort |
consumption rate of northeast arctic cod - a comparison of gastric evacuation models |
publisher |
ICES |
publishDate |
1990 |
url |
http://hdl.handle.net/11250/104769 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic cod Arctic Arktis* Barents Sea Northeast Arctic cod |
genre_facet |
Arctic cod Arctic Arktis* Barents Sea Northeast Arctic cod |
op_source |
12 s. |
op_relation |
ICES CM Documents;1990/G:22 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/104769 |
_version_ |
1766304231592034304 |