Growth and food consumption of whiting Merlangius merlangus
In the western Baltic Sea (WBS), whiting Merlangius merlangus is the main piscivorous fish together with cod Gadus morhua. In the present study, we investigate the growth and food consumption rates of WBS M. merlangus and compare the growth rates of males and females with those of M. merlangus in th...
Published in: | Journal of Fish Biology |
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Language: | English |
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2018
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Online Access: | https://orbit.dtu.dk/en/publications/bb46e192-e754-4a6d-8e83-fd357fee4d0f https://doi.org/10.1111/jfb.13763 |
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ftdtupubl:oai:pure.atira.dk:publications/bb46e192-e754-4a6d-8e83-fd357fee4d0f 2023-12-24T10:16:51+01:00 Growth and food consumption of whiting Merlangius merlangus Ross, Stine Dalmann Nielsen, J. R. Gislason, H. Nielsen, A. Andersen, Niels Gerner 2018 https://orbit.dtu.dk/en/publications/bb46e192-e754-4a6d-8e83-fd357fee4d0f https://doi.org/10.1111/jfb.13763 eng eng https://orbit.dtu.dk/en/publications/bb46e192-e754-4a6d-8e83-fd357fee4d0f info:eu-repo/semantics/closedAccess Ross , S D , Nielsen , J R , Gislason , H , Nielsen , A & Andersen , N G 2018 , ' Growth and food consumption of whiting Merlangius merlangus ' , Journal of Fish Biology , vol. 93 , no. 2 , pp. 334-343 . https://doi.org/10.1111/jfb.13763 Bioenergetics Food consumption rates Growth dynamics North Sea Western Baltic Sea article 2018 ftdtupubl https://doi.org/10.1111/jfb.13763 2023-11-30T00:02:16Z In the western Baltic Sea (WBS), whiting Merlangius merlangus is the main piscivorous fish together with cod Gadus morhua. In the present study, we investigate the growth and food consumption rates of WBS M. merlangus and compare the growth rates of males and females with those of M. merlangus in the North Sea (NS). Food consumption rates are estimated directly from sampled stomach contents in the WBS using a gastric evacuation rate model and indirectly by using a static energy‐budget model together with the growth rates. The results indicate that male and female M. merlangus in the WBS have similar feeding and growth strategies, while in the NS M. merlangus show more pronounced differences in food consumption and growth dynamics between the sexes. Female WBS M. merlangus grow significantly slower than their conspecifics in the NS, but there is no significant difference for males. Sexual size dimorphism is seen in both areas, but for M. merlangus in the WBS the difference is less pronounced. Food consumption rates in the WBS differ between seasons, with the lowest food intake in the first 2 quarters of the year and the highest in the 3rd quarter. No differences in consumption rates were seen between males and females, which could be related to the more similar growth pattern seen for M. merlangus in the WBS Article in Journal/Newspaper Gadus morhua Technical University of Denmark: DTU Orbit Journal of Fish Biology 93 2 334 343 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Bioenergetics Food consumption rates Growth dynamics North Sea Western Baltic Sea |
spellingShingle |
Bioenergetics Food consumption rates Growth dynamics North Sea Western Baltic Sea Ross, Stine Dalmann Nielsen, J. R. Gislason, H. Nielsen, A. Andersen, Niels Gerner Growth and food consumption of whiting Merlangius merlangus |
topic_facet |
Bioenergetics Food consumption rates Growth dynamics North Sea Western Baltic Sea |
description |
In the western Baltic Sea (WBS), whiting Merlangius merlangus is the main piscivorous fish together with cod Gadus morhua. In the present study, we investigate the growth and food consumption rates of WBS M. merlangus and compare the growth rates of males and females with those of M. merlangus in the North Sea (NS). Food consumption rates are estimated directly from sampled stomach contents in the WBS using a gastric evacuation rate model and indirectly by using a static energy‐budget model together with the growth rates. The results indicate that male and female M. merlangus in the WBS have similar feeding and growth strategies, while in the NS M. merlangus show more pronounced differences in food consumption and growth dynamics between the sexes. Female WBS M. merlangus grow significantly slower than their conspecifics in the NS, but there is no significant difference for males. Sexual size dimorphism is seen in both areas, but for M. merlangus in the WBS the difference is less pronounced. Food consumption rates in the WBS differ between seasons, with the lowest food intake in the first 2 quarters of the year and the highest in the 3rd quarter. No differences in consumption rates were seen between males and females, which could be related to the more similar growth pattern seen for M. merlangus in the WBS |
format |
Article in Journal/Newspaper |
author |
Ross, Stine Dalmann Nielsen, J. R. Gislason, H. Nielsen, A. Andersen, Niels Gerner |
author_facet |
Ross, Stine Dalmann Nielsen, J. R. Gislason, H. Nielsen, A. Andersen, Niels Gerner |
author_sort |
Ross, Stine Dalmann |
title |
Growth and food consumption of whiting Merlangius merlangus |
title_short |
Growth and food consumption of whiting Merlangius merlangus |
title_full |
Growth and food consumption of whiting Merlangius merlangus |
title_fullStr |
Growth and food consumption of whiting Merlangius merlangus |
title_full_unstemmed |
Growth and food consumption of whiting Merlangius merlangus |
title_sort |
growth and food consumption of whiting merlangius merlangus |
publishDate |
2018 |
url |
https://orbit.dtu.dk/en/publications/bb46e192-e754-4a6d-8e83-fd357fee4d0f https://doi.org/10.1111/jfb.13763 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Ross , S D , Nielsen , J R , Gislason , H , Nielsen , A & Andersen , N G 2018 , ' Growth and food consumption of whiting Merlangius merlangus ' , Journal of Fish Biology , vol. 93 , no. 2 , pp. 334-343 . https://doi.org/10.1111/jfb.13763 |
op_relation |
https://orbit.dtu.dk/en/publications/bb46e192-e754-4a6d-8e83-fd357fee4d0f |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/jfb.13763 |
container_title |
Journal of Fish Biology |
container_volume |
93 |
container_issue |
2 |
container_start_page |
334 |
op_container_end_page |
343 |
_version_ |
1786204592754655232 |