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A physiologically-structured fish population model with size-dependent foraging.

Authors :
Ghwila M
Willms AR
Source :
Mathematical biosciences [Math Biosci] 2019 Sep; Vol. 315, pp. 108233. Date of Electronic Publication: 2019 Jul 22.
Publication Year :
2019

Abstract

A previous physiologically-structured model for a fish population based on individual-level characteristics is studied. The foraging rate is generalized to include a size-dependent functional response and the energy distribution of adults is generalized to permit both reproduction and growth. Equilibria are determined and their stability studied along with a discussion of harvesting strategies. The model with these generalizations is shown to give different predictions than the original model regarding age distribution of fish and harvesting strategies.<br /> (Copyright © 2019 Elsevier Inc. All rights reserved.)

Details

Language :
English
ISSN :
1879-3134
Volume :
315
Database :
MEDLINE
Journal :
Mathematical biosciences
Publication Type :
Academic Journal
Accession number :
31344381
Full Text :
https://doi.org/10.1016/j.mbs.2019.108233