An empirical model of fleet dynamics in New England trawl fisheries

Regulations and changes in market and environmental conditions that change the profitability of one fishery or area will result in a redistribution of fishing effort among alternative fisheries or areas. The magnitude of this effort displacement will depend on the relative profitability of the alter...

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Bibliographic Details
Published in:Canadian journal of fisheries and aquatic sciences 1999-02, Vol.56 (2), p.253-264
Main Authors: Holland, Daniel S, Sutinen, Jon G
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Commercial fishing
Environmental conditions
Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.)
Fisheries
Fishing boats
Fishing industry
Fundamental and applied biological sciences. Psychology
Marine
Mathematical models
R&D
Research & development
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Summary:Regulations and changes in market and environmental conditions that change the profitability of one fishery or area will result in a redistribution of fishing effort among alternative fisheries or areas. The magnitude of this effort displacement will depend on the relative profitability of the alternatives for the individual fishers affected. When fishing areas and fishers are heterogeneous, simple aggregate effort models such as those based on ideal free distribution theory may provide inaccurate predictions. We present an empirical model of individual vessel fishery and location choice based on trip data for a group of over 400 large trawlers fishing in New England. The model uses lagged average revenue rates for different alternatives and the individual vessel's past behavior to predict choice of species group and fishing location on a trip-by-trip basis. This model is used to predict aggregate effort levels in different fisheries and areas over time.
ISSN:0706-652X
1205-7533
DOI:10.1139/f98-169