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

被引：3

作者：

Blomquist, Johan ^{[1
]}

Jensen, Frank ^{[2
]}

Waldo, Staffan ^{[1
]}

Flaaten, Ola ^{[3
]}

Holma, Maija K. ^{[4
]}

机构：

[1] Swedish Univ Agr Sci, Dept Econ, Sceelevangen 15D, S-22002 Lund, Sweden

[2] Univ Copenhagen, Dept Food & Resource Econ, Copenhagen, Denmark

[3] Arctic Univ Norway, Univ Tromso UiT, Tromso, Norway

[4] Univ Helsinki, Dept Econ & Management, Helsinki, Finland

来源：

NATURAL RESOURCE MODELING | 2022年 / 35卷 / 04期

关键词：

cod; grey seals; joint management; Nordic-Baltic Sea Countries; GADUS-MORHUA; CONTRACAECUM-OSCULATUM; PREY; POPULATION; INFECTION; PERSISTENCE; EXTINCTION;

D O I：

10.1111/nrm.12341

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页数：29