American Fisheries Society Computer User Section Software Description

AFSCUS-16 : GENMOD

GENMOD - a generalized age-structured population model.

by: Joseph E. Hightower, NMFS, Tiburon, CA
version: Sept86
Date: 11/6/1986
Requires: math coprocessor recommended
Overall rating (10 point scale): 8
Printed Documentation included? No
Last Review: AFSCUS Newsletter Vol V, No. 2
Cost: $10

GENMOD options include: creating, editing and printing data files that contain model parameters, determine equilibrium yield as a function of fishing effort, examine the short and long-term behavior of the model when recruitment is a random event, and to obtain optimum harvest policies. The model incorporates both Ricker and Beverton-Holt stock-recruit relationships. Up to 30 age classes can be used and natural mortality, catchability, weight and fecundity can vary by age. The documentation is poorly organized. A description of GENMOD is in: Edwards, E.F. and B.A. Megrey (ed.). 1989. Mathematical Analysis of Fish Stock Dynamics. AFS Symposium 6:209-210.   Includes: GENMOD.COM (overlay, documentation, and sample data files), GENSRC.ZIP (PASCAL source code).

Copyright 2007,     updated 01.30.2007

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