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- Title
A Conditional Constant Catch Policy for Managing the Pacific Halibut Fishery.
- Authors
Clark, William G.; Hare, Steven R.
- Abstract
Since 1985, the staff of the International Pacific Halibut Commission (IPHC) has used a constant harvest rate policy--currently 20% of exploitable biomass--to estimate the yield currently available from Pacific halibut Hippoglossus stenolepis stock. This paper outlines a more stable alternative policy in which yield is held constant at some ceiling level so long as taking that yield would not result in a total exploitation rate exceeding a specified ceiling rate. During any periods of low abundance, the policy would revert to a constant harvest rate policy at the ceiling rate. The ceiling harvest rate would be chosen so as to assure that spawning biomass remained above a specified minimum. A policy of this kind could produce a yield similar to the present 20% constant harvest rate policy but with much less year-to-year variation attributable to changes in stock abundance, assessment methods, and estimated removals by other fisheries.
- Subjects
PACIFIC halibut fisheries; PACIFIC halibut; FISHERY management; FISHERIES; HALIBUT; HALIBUT fisheries
- Publication
North American Journal of Fisheries Management, 2004, Vol 24, Issue 1, p106
- ISSN
0275-5947
- Publication type
Article
- DOI
10.1577/M03-020