Seminar Details

Seminar Details


Apr 28

3:30 pm

Estimating Exploitation Rates of a Migrating Population of Yellowtail Flounders Using Multi-State Mark-Recapture Methods Incorporating Tag Loss and Variable Reporting Rates

Laura Cowen


University of Victoria - Mathematics & Statistics

Multi-state mark-recapture models can be used to model migration through stratification of the study area into states (location). We develop a migration model for fish which also incorporates tag loss and reporting rates but has as its primary purpose the modelling of exploitation and natural mortality rates. This model is applied to a 2000-2004 yellowtail flounder (Limanda ferruginea) tagging study on the Grand Bank of Newfoundland. We found that exploitation rates varied over both location and year.