Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations
Fisheries management traditionally relies on stock assessments assuming discrete populations within large administrational areas. However, failing to account for sub-stock structuring may result in overestimation of the stocks' true harvest potential and unsustainable exploitation of small stoc...
Published in: | ICES Journal of Marine Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press
2013
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Online Access: | https://lup.lub.lu.se/record/4062810 https://doi.org/10.1093/icesjms/fst042 |
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ftulundlup:oai:lup.lub.lu.se:184c174b-f08f-4320-b0c9-6665b6c2f3cc 2023-05-15T15:27:11+02:00 Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations Lindegren, Martin Waldo, Staffan Nilsson, Anders Svedang, Henrik Persson, Anders 2013 https://lup.lub.lu.se/record/4062810 https://doi.org/10.1093/icesjms/fst042 eng eng Oxford University Press https://lup.lub.lu.se/record/4062810 http://dx.doi.org/10.1093/icesjms/fst042 wos:000323635600011 scopus:84883236810 ICES Journal of Marine Science; 70(6), pp 1140-1150 (2013) ISSN: 1095-9289 Ecology Atlantic cod bio-economics fisheries management population structuring stock assessment sub-stock-specific technical regulations contributiontojournal/article info:eu-repo/semantics/article text 2013 ftulundlup https://doi.org/10.1093/icesjms/fst042 2023-02-01T23:29:50Z Fisheries management traditionally relies on stock assessments assuming discrete populations within large administrational areas. However, failing to account for sub-stock structuring may result in overestimation of the stocks' true harvest potential and unsustainable exploitation of small stock elements. Atlantic cod (Gadus morhua) frequently occurs in spatially segregated populations, some of which exhibit fine-scaled stock structuring within current management boundaries. Here we use the locally spawning cod stock in the Sound ("Oresund") as a case study, and perform a sub-stock-specific assessment to evaluate biological and economic effects of managing the Sound cod as a separate stock. Our results indicate that reducing exploitation pressure, particularly through technical regulations i. e. increasing gill-net mesh sizes, would not only enhance the stock age distribution, but yield long-term net benefits to the local gill-net fishery. Furthermore, our study emphasizes the need for developing sub-stock-specific management recommendations in order to ensure the maintenance of fisheries resources in general, and the persistence of sub-stock structuring in particular. Article in Journal/Newspaper atlantic cod Gadus morhua Lund University Publications (LUP) ICES Journal of Marine Science 70 6 1140 1150 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Atlantic cod bio-economics fisheries management population structuring stock assessment sub-stock-specific technical regulations |
spellingShingle |
Ecology Atlantic cod bio-economics fisheries management population structuring stock assessment sub-stock-specific technical regulations Lindegren, Martin Waldo, Staffan Nilsson, Anders Svedang, Henrik Persson, Anders Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations |
topic_facet |
Ecology Atlantic cod bio-economics fisheries management population structuring stock assessment sub-stock-specific technical regulations |
description |
Fisheries management traditionally relies on stock assessments assuming discrete populations within large administrational areas. However, failing to account for sub-stock structuring may result in overestimation of the stocks' true harvest potential and unsustainable exploitation of small stock elements. Atlantic cod (Gadus morhua) frequently occurs in spatially segregated populations, some of which exhibit fine-scaled stock structuring within current management boundaries. Here we use the locally spawning cod stock in the Sound ("Oresund") as a case study, and perform a sub-stock-specific assessment to evaluate biological and economic effects of managing the Sound cod as a separate stock. Our results indicate that reducing exploitation pressure, particularly through technical regulations i. e. increasing gill-net mesh sizes, would not only enhance the stock age distribution, but yield long-term net benefits to the local gill-net fishery. Furthermore, our study emphasizes the need for developing sub-stock-specific management recommendations in order to ensure the maintenance of fisheries resources in general, and the persistence of sub-stock structuring in particular. |
format |
Article in Journal/Newspaper |
author |
Lindegren, Martin Waldo, Staffan Nilsson, Anders Svedang, Henrik Persson, Anders |
author_facet |
Lindegren, Martin Waldo, Staffan Nilsson, Anders Svedang, Henrik Persson, Anders |
author_sort |
Lindegren, Martin |
title |
Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations |
title_short |
Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations |
title_full |
Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations |
title_fullStr |
Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations |
title_full_unstemmed |
Towards sustainable fisheries of the Oresund cod (Gadus morhua) through sub-stock-specific assessment and management recommendations |
title_sort |
towards sustainable fisheries of the oresund cod (gadus morhua) through sub-stock-specific assessment and management recommendations |
publisher |
Oxford University Press |
publishDate |
2013 |
url |
https://lup.lub.lu.se/record/4062810 https://doi.org/10.1093/icesjms/fst042 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
ICES Journal of Marine Science; 70(6), pp 1140-1150 (2013) ISSN: 1095-9289 |
op_relation |
https://lup.lub.lu.se/record/4062810 http://dx.doi.org/10.1093/icesjms/fst042 wos:000323635600011 scopus:84883236810 |
op_doi |
https://doi.org/10.1093/icesjms/fst042 |
container_title |
ICES Journal of Marine Science |
container_volume |
70 |
container_issue |
6 |
container_start_page |
1140 |
op_container_end_page |
1150 |
_version_ |
1766357632662110208 |