Title

Harvesting In An Eight-Species Ecosystem

Keywords

Bioeconomic harvesting; Ecosystems and economics; Multispecies ecosystem

Abstract

The theory for a general equilibrium ecosystem model that can include large number of interacting species is presented. Features include: (1) individual plants and animals are assumed to behave as if they are maximizing their net energy intake, (2) short- and long-run equilibriums are obtained, (3) species' population adjustments depend on individual net energies. The theory is applied using simulations of an eight-species Alaskan marine ecosystem for which a "natural" equilibrium is calculated. Humans are introduced by adding a regulated open access fishery that harvests one of the species. Fishing impacts the fish population as well as the populations of other species, including Stellar sea lions, an endangered species. The sensitivity of fish and nonfish species populations to harvesting are calculated. © 2003 Published by Elsevier Science (USA).

Publication Date

1-1-2003

Publication Title

Journal of Environmental Economics and Management

Volume

45

Issue

3

Number of Pages

589-611

Document Type

Review

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0095-0696(02)00025-6

Socpus ID

0037994141 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0037994141

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