Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea
Abstract A bioeconomic simulation model of the two interacting fish species cod (Gadus morhua) and capelin (Mallotus villosus) and their fisheries is presented and applied to assess the consequences of changes in the population dynamics of these important fish stocks in the Barents Sea. In each scen...
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2006
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Online Access: | http://dx.doi.org/10.1016/j.icesjms.2006.01.003 http://academic.oup.com/icesjms/article-pdf/63/4/611/29124777/63-4-611.pdf |
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croxfordunivpr:10.1016/j.icesjms.2006.01.003 2024-04-07T07:51:23+00:00 Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea Link, P. Michael Tol, Richard S.J. 2006 http://dx.doi.org/10.1016/j.icesjms.2006.01.003 http://academic.oup.com/icesjms/article-pdf/63/4/611/29124777/63-4-611.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 63, issue 4, page 611-625 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2006 croxfordunivpr https://doi.org/10.1016/j.icesjms.2006.01.003 2024-03-08T03:04:19Z Abstract A bioeconomic simulation model of the two interacting fish species cod (Gadus morhua) and capelin (Mallotus villosus) and their fisheries is presented and applied to assess the consequences of changes in the population dynamics of these important fish stocks in the Barents Sea. In each scenario, the population dynamics of the fish species are changed by reducing the reproduction-induced productivities and/or the carrying capacities. Stock sizes and landings of fish are calculated for each fishing period, and the net present values of profits from fishing are determined for time periods prior to and after the change in population dynamics. Results show that reduced growth rates or carrying capacities lead to lower stock levels and consequently to smaller catches. There is only a small short-term economic impact on the fisheries, but the long-term consequences are pronounced. In some cases, greater fishing activity in the first few years after the change in population dynamics causes harvests to remain stable despite diminishing stock sizes. This stabilizes the returns from fishing in the short term, but veils the apparent negative long-term impact on the fisheries resulting from adversely affected stock dynamics. Article in Journal/Newspaper Barents Sea Gadus morhua Oxford University Press Barents Sea ICES Journal of Marine Science 63 4 611 625 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Link, P. Michael Tol, Richard S.J. Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract A bioeconomic simulation model of the two interacting fish species cod (Gadus morhua) and capelin (Mallotus villosus) and their fisheries is presented and applied to assess the consequences of changes in the population dynamics of these important fish stocks in the Barents Sea. In each scenario, the population dynamics of the fish species are changed by reducing the reproduction-induced productivities and/or the carrying capacities. Stock sizes and landings of fish are calculated for each fishing period, and the net present values of profits from fishing are determined for time periods prior to and after the change in population dynamics. Results show that reduced growth rates or carrying capacities lead to lower stock levels and consequently to smaller catches. There is only a small short-term economic impact on the fisheries, but the long-term consequences are pronounced. In some cases, greater fishing activity in the first few years after the change in population dynamics causes harvests to remain stable despite diminishing stock sizes. This stabilizes the returns from fishing in the short term, but veils the apparent negative long-term impact on the fisheries resulting from adversely affected stock dynamics. |
format |
Article in Journal/Newspaper |
author |
Link, P. Michael Tol, Richard S.J. |
author_facet |
Link, P. Michael Tol, Richard S.J. |
author_sort |
Link, P. Michael |
title |
Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea |
title_short |
Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea |
title_full |
Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea |
title_fullStr |
Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea |
title_full_unstemmed |
Economic impacts of changes in the population dynamics of fish on the fisheries of the Barents Sea |
title_sort |
economic impacts of changes in the population dynamics of fish on the fisheries of the barents sea |
publisher |
Oxford University Press (OUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1016/j.icesjms.2006.01.003 http://academic.oup.com/icesjms/article-pdf/63/4/611/29124777/63-4-611.pdf |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Gadus morhua |
genre_facet |
Barents Sea Gadus morhua |
op_source |
ICES Journal of Marine Science volume 63, issue 4, page 611-625 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/j.icesjms.2006.01.003 |
container_title |
ICES Journal of Marine Science |
container_volume |
63 |
container_issue |
4 |
container_start_page |
611 |
op_container_end_page |
625 |
_version_ |
1795666333197664256 |