Mathematical Modeling Describing the Effect of Fishing and Dispersion on Hermaphrodite Population Dynamics - Archive ouverte HAL Access content directly
Journal Articles Mathematical Modelling of Natural Phenomena Year : 2010

Mathematical Modeling Describing the Effect of Fishing and Dispersion on Hermaphrodite Population Dynamics

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Abstract

In order to study the impact of fishing on a grouper population, we propose in this paper to model the dynamics of a grouper population in a fishing territory by using structured models. For that purpose, we have integrated the natural population growth, the fishing, the competition for shelter and the dispersion. The dispersion was considered as a consequence of the competition. First we prove, that the grouper stocks may be less sensitive to the removal of large male individuals if female population are totally protected. Second, we show that fishing does not disturb the demographic structure of the population. Finally, we prove that female selective fisheries have the potential of drastically reduce reproductive rates. We also prove that male fishing decreases competition and then increases the total population number.
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Dates and versions

pasteur-01375295 , version 1 (21-12-2016)

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Attribution - NonCommercial - CC BY 4.0

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S. Ben Miled, A. Kebir, M. L. Hbid. Mathematical Modeling Describing the Effect of Fishing and Dispersion on Hermaphrodite Population Dynamics. Mathematical Modelling of Natural Phenomena, 2010, 5 (6), pp.159-179. ⟨10.1051/mmnp/20105608⟩. ⟨pasteur-01375295⟩
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