Transient inconsistency between population density and fisheries yields without bycatch species extinction.

ABSTRACT: Recent studies have demonstrated the great advantages of marine reserves in solving bycatch problems by maintaining the persistence (i.e., avoid extinction) of endangered species without sacrificing the fisheries yields of target species. However, transient phenomena rather than equilibrium states of population dynamics still require further research. Here, with a simple and general model, the transient dynamics of the target fish species are investigated under management which minimizes extinction risk of the bycatch species. An interesting finding is that fisheries yields can strongly fluctuate even if population density both inside and outside marine reserve only slightly varies (or vice versa), leading to transient inconsistency between the population densities and fisheries yields. Th

SUBMITTER: Chen R 

PROVIDER: S-EPMC7663084 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature