Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod
(2001) In Marine Ecology - Progress Series 210. p.291-296- Abstract
- 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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/147538
- author
- Jonzén, Niclas LU ; Lundberg, Per LU ; Cardinale, M and Arrhenius, F
- organization
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Marine Ecology - Progress Series
- volume
- 210
- pages
- 291 - 296
- publisher
- Inter-Research
- external identifiers
-
- scopus:0035951424
- ISSN
- 1616-1599
- language
- English
- LU publication?
- yes
- id
- fa248a62-835d-44b0-89bd-d2ab51e708df (old id 147538)
- alternative location
- http://www.int-res.com/articles/meps/210/m210p291.pdf
- date added to LUP
- 2016-04-01 12:09:10
- date last changed
- 2022-02-03 18:17:39
@article{fa248a62-835d-44b0-89bd-d2ab51e708df, abstract = {{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.}}, author = {{Jonzén, Niclas and Lundberg, Per and Cardinale, M and Arrhenius, F}}, issn = {{1616-1599}}, language = {{eng}}, pages = {{291--296}}, publisher = {{Inter-Research}}, series = {{Marine Ecology - Progress Series}}, title = {{Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod}}, url = {{http://www.int-res.com/articles/meps/210/m210p291.pdf}}, volume = {{210}}, year = {{2001}}, }