Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod
The recent decline in the Baltic cod Gadus morhua L. has been accompanied by an increase in population variability. Small population size, poor recruitment, and high population variability may be factors contributing to their imminent (commercial) extinction. Here we show that variable harvest rate,...
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Inter-Research
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ftulundlup:oai:lup.lub.lu.se:fa248a62-835d-44b0-89bd-d2ab51e708df 2023-05-15T16:19:03+02:00 Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod Jonzén, Niclas Lundberg, Per Cardinale, M Arrhenius, F 2001 https://lup.lub.lu.se/record/147538 eng eng Inter-Research https://lup.lub.lu.se/record/147538 scopus:0035951424 Marine Ecology - Progress Series; 210, pp 291-296 (2001) ISSN: 1616-1599 Biological Sciences contributiontojournal/article info:eu-repo/semantics/article text 2001 ftulundlup 2023-02-01T23:32:59Z The recent decline in the Baltic cod Gadus morhua L. has been accompanied by an increase in population variability. Small population size, poor recruitment, and high population variability may be factors contributing to their imminent (commercial) extinction. Here we show that variable harvest rate, rather than variable recruitment, is the plausible cause of the increased variance in Baltic cod stock size. This calls for a reconsideration of the role of harvesting as a driving force in exploited populations. The mean exploitation rate, and also the variance, ought to be taken into account in fisheries and other population management. Article in Journal/Newspaper Gadus morhua Lund University Publications (LUP) |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Biological Sciences |
spellingShingle |
Biological Sciences Jonzén, Niclas Lundberg, Per Cardinale, M Arrhenius, F Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod |
topic_facet |
Biological Sciences |
description |
The recent decline in the Baltic cod Gadus morhua L. has been accompanied by an increase in population variability. Small population size, poor recruitment, and high population variability may be factors contributing to their imminent (commercial) extinction. Here we show that variable harvest rate, rather than variable recruitment, is the plausible cause of the increased variance in Baltic cod stock size. This calls for a reconsideration of the role of harvesting as a driving force in exploited populations. The mean exploitation rate, and also the variance, ought to be taken into account in fisheries and other population management. |
format |
Article in Journal/Newspaper |
author |
Jonzén, Niclas Lundberg, Per Cardinale, M Arrhenius, F |
author_facet |
Jonzén, Niclas Lundberg, Per Cardinale, M Arrhenius, F |
author_sort |
Jonzén, Niclas |
title |
Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod |
title_short |
Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod |
title_full |
Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod |
title_fullStr |
Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod |
title_full_unstemmed |
Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod |
title_sort |
variable fishing mortality and the possible commercial extinction of the eastern baltic cod |
publisher |
Inter-Research |
publishDate |
2001 |
url |
https://lup.lub.lu.se/record/147538 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Marine Ecology - Progress Series; 210, pp 291-296 (2001) ISSN: 1616-1599 |
op_relation |
https://lup.lub.lu.se/record/147538 scopus:0035951424 |
_version_ |
1766005357646184448 |