Publication Abstract

Methods for stock assessment of crustacean fisheries

M. T. Smith and J. T. Addison

Crustacean fisheries account for nearly 30% of all fish and shellfish landings by value world-wide. A range of stocks assessment methods are available and this paper reviews and evaluates their use in crustacean stock assessment. Methods covered include surplus production models, delay-difference models, depletion methods, equilibrium yield- and egg-per-recruit models and dynamic size-structured models. The development, underlying assumptions, data requirements, benefits and disadvantages of each model are briefly considered. The implication of uncertainty in data, parameter estimates and model structure and how it can be treated, is also considered. Finally we speculate on ways in which crustacean stock assessment methodology may evolve in the future.

Reference:

M. T. Smith and J. T. Addison. 2003. Methods for stock assessment of crustacean fisheries. Fisheries Research, (1-3) 65; 231-256