UW / NWFSC / AFSC

Mini-Workshops

The mini-workshop series is a collaboration between fisheries stock assessment researchers at the University of Washington’s School of Aquatic & Fishery Sciences and the NMFS Northwest and Alaska Fisheries Science Centers.

For more information, email series coordinator Jason Cope at jcope@u.washington.edu

View the Spring 2003 schedule here.

Next Workshop:

Thursday, 12th June, 2003

9:30am-11:30am

UW Fishery Sciences Building, room 203

Ian G. Taylor & Vincent F. Gallucci

(School of Aquatic & Fishery Sciences, UW)

"The Use of Reproductive Potential to Compare Age-Structured Models to Surplus Production Models"

Abstract

Surplus production models have been applied to elasmobranch populations due to a shortage of age-specific data. This is despite knowledge that many of these species have long life-spans and a late age of maturity, traits that would be better described by age-structured models. The data limitations have suggested the exploration of alternative methods to better assess these populations. Reproductive potential, a concept developed by R.A. Fisher, is a sum of the expected future contributions of all individuals to the population as a whole. By incorporating the probabilities of surviving to spawn in future years and differences in fecundity-at-age values it represents more accurately a population's capacity for growth than does biomass.

Click here to link to previous quarter's workshop schedules.

MPAM Group website