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Joint management of marine mammals and a fish species: The case of cod and grey seals in the Nordic-Baltic Sea countries

Blomquist, Johan LU ; Jensen, Frank ; Waldo, Staffan LU ; Flaaten, Ola and Holma, Maija (2022) In Natural Resource Modeling 35(4).
Abstract
In this paper, we present a simple theoretical, steady-state equilibrium, predator-prey model for the joint management of marine mammals and a fish species. As an empirical case, we choose cod and grey seals in the Nordic-Baltic Sea countries, and several benefits and costs related to the latter are considered. We show that the optimal grey seal population is much lower than the actual population, and this result is robust to variations in relevant parameter values. This result can be explained by the fact that the profit from harvesting cod is much higher than the net benefits from grey seals.
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cod, grey seals, joint management, Nordic‐Baltic Sea Countries
in
Natural Resource Modeling
volume
35
issue
4
publisher
Wiley-Blackwell
external identifiers
  • scopus:85125388291
ISSN
0890-8575
DOI
10.1111/nrm.12341
language
English
LU publication?
yes
id
2ee86928-7338-4e2c-8a6f-70622ad0e8ab
date added to LUP
2022-11-18 10:05:03
date last changed
2022-11-26 19:26:11
@article{2ee86928-7338-4e2c-8a6f-70622ad0e8ab,
  abstract     = {{In this paper, we present a simple theoretical, steady-state equilibrium, predator-prey model for the joint management of marine mammals and a fish species. As an empirical case, we choose cod and grey seals in the Nordic-Baltic Sea countries, and several benefits and costs related to the latter are considered. We show that the optimal grey seal population is much lower than the actual population, and this result is robust to variations in relevant parameter values. This result can be explained by the fact that the profit from harvesting cod is much higher than the net benefits from grey seals.}},
  author       = {{Blomquist, Johan and Jensen, Frank and Waldo, Staffan and Flaaten, Ola and Holma, Maija}},
  issn         = {{0890-8575}},
  keywords     = {{cod; grey seals; joint management; Nordic‐Baltic Sea Countries}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Natural Resource Modeling}},
  title        = {{Joint management of marine mammals and a fish species: The case of cod and grey seals in the Nordic-Baltic Sea countries}},
  url          = {{http://dx.doi.org/10.1111/nrm.12341}},
  doi          = {{10.1111/nrm.12341}},
  volume       = {{35}},
  year         = {{2022}},
}