Rudd, Merrill; Martell, Steve

Report on updates to the age-structured, integrated Catch-MSY assessment approach

2016

University of Washington

"The Catch-MSY approach was initially developed by Martell and Froese (2013) as a method for estimating MSY from catch data, species resilience, and assumptions about relative stock sizes in the first and last year of catch data available. The initial program followed a biomass-dynamic model, estimating the carrying capacity (K) and intrinsic rate of growth (r). More recently, improvements on the Catch-MSY approach have included management-oriented parameterization, moving from an underlying biomass-dynamic to age-structured model, and the ability to integrate more data types if available and estimate model parameters with a Bayesian Sampling Importance Resampling (SIR) algorithm. The Catch-MSY method with these new features underwent a CIE review in 2015. The three reviewers recommended a list of points for future work before the Catch-MSY method could be applied to inform management of U.S. stocks. This report summarizes the results of the new additions including new features and testing."

Catch-MSY, model, stock assessment

NMFS

FY2014; Fishery Management Council Cooperative Agreement NA14NMF4410146.

NA14NMF4410146