Exploring MSY strategies for elasmobranch fishes in an ecosystem perspective
Year: 2007
Type: article
Abstract: An ecotrophic model of the neritic ecosystem of southern Brazil was developed and some strategies for elasmobranch fishes exploitation were analyzed using Ecopath with Ecosim. Fisheries policy optimization analysis showed that the elasmobranchs are badly affected by almost all fishing fleets, thus management and conservation actions must take this fact into account. The dynamic simulations showed that applying Maximum Sustainable Yield fishing strategies to several species (multi-species MSY) would cause the decrease in abundance of top predators, including some elasmobranchs groups, although the simulated changes were not as dramatic as we expected. The model analysis also revealed that the available data on biomass and on exploitation need to be reviewed and new studies must be conducted in order to assess the state of these elasmobranch populations in the area.
Source: Americanae (AECID Library)
Language: English
Subfield: Nature and Landscape Conservation
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W52268179