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Variable fishing mortality and the possible commercial extinction of the eastern Baltic cod

Jonzén, Niclas LU ; Lundberg, Per LU ; Cardinale, M and Arrhenius, F (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.
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author
organization
publishing date
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
2007-07-03 12:27:54
date last changed
2018-05-29 09:28:58
@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},
  volume       = {210},
  year         = {2001},
}