American Fisheries Society Computer User Section Software Description

AFSCUS-26 : Trout Dynamics

Trout Dynamics - an age-structured population model which simulates the effects of various angling regulations on fish populations.

by: Richard D. Clark, Jr., Michigan Dept. of Natural Resources
version: 4.0
Date: September 26, 1989
Requires: none
Overall rating (10 point scale): 7
Printed Documentation included? No (documentation provided on disk)
Last Review: AFSCUS Newsletter Vol. VI, No.1
Cost: $10

Trout Dynamics is a multiple cohort population simulator, designed to assess the complex rules and recreational goals encountered under "quality" fishing. It utilizes the kind of data typically collected from trout-stream fisheries (i.e., mark-recapture estimates using electrofishing gear), but can be used to assess fisheries for any species of fish if proper data is available. The model: 1) estimates the number of fish caught and released and the hooking mortality they sustain; 2) evaluates the effects of unconventional size limit regulations such as slotted or inverted limits; and 3) illustrates the effects of fishing by showing the expected population size of fish and the expected catch of fish by size (inch) group. The program is very easy to use. Output is well organized and easy to understand.

Copyright 2007,     updated 01.30.2007

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