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Article: Integrating catch-at-age and multiyear tagging data: a combined Brownie and Petersen estimation approach in a fishery context.
- Article from:
- Canadian Journal of Fisheries and Aquatic Sciences
- Article date:
- March 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 NRC Research Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract: A comprehensive framework for modelling data from multiyear tagging experiments in a fishery context is presented that incorporates catch data into the traditional Brownie tag-recapture model. Incorporation of catch data not only allows for improved estimation of natural and fishing mortality rates, but also for direct estimation of population size at the time of tagging. These are the primary quantities required to be estimated in stock assessments--having an approach for directly estimating them that does not require catch rates provides a potentially powerful alternative for augmenting traditional stock assessment methods. Simulations are used to demonstrate ...