title: Sustainability and economic consequences of creating marine protected areas in multispecies multiactivity context.
abstract: The present study deals with harvesting of prey species in the presence of predator in a multispecies marine fishery. The total habitat is divided into two patches: one is reserve area where fishing is completely banned and other zone is called fishing area where only prey is exploited. We assume that the prey fish possesses heterogeneous intrinsic growth rate with uniform carrying capacity where as predator has constant intrinsic growth rate with prey dependent carrying capacity. The analytical conditions are derived to prevent the species extinction for larger employed effort in single (only prey) species fishery. Optimal equilibrium premium are presented for both monospecies and multispecies fishery for all degree of protection. Increasing standing stock (ISS) and protected standing stock (PSS) are measured in the presence of prey-predator interaction.
authors.affiliation: Department of Mathematics, Bengal Engineering and Science University, Shibpur, Howrah-711103, India. tkar1117@gmail.com
authors.forename: T K
authors.initials: TK
authors.lastname: Kar
authors.forename: Bapan
authors.initials: B
authors.lastname: Ghosh
mesh_terms: D000465:Algorithms; D000818:Animals; D044822:Biodiversity; D003247:Conservation of Natural Resources / Q000191:economics* / Q000379:methods; D053476:Extinction, Biological; D005398:Fisheries / Q000191:economics* / Q000379:methods; D005399:Fishes / Q000254:growth & development*; D008954:Models, Biological; D017059:Models, Econometric; D011157:Population Dynamics; D011235:Predatory Behavior; D013045:Species Specificity