|Exploration of harvesting strategies for the management of a Mexican coastal lagoon fishery|
Zetina-Rejón, M.J.; Arreguín-Sánchez, F.; Chávez, E.A. (2004). Exploration of harvesting strategies for the management of a Mexican coastal lagoon fishery. Ecol. Model. 172(2-4): 361-372
In: Ecological Modelling. Elsevier: Amsterdam; Lausanne; New York; Oxford; Shannon; Tokyo. ISSN 0304-3800, more
Lagoon fisheries; Shrimp fisheries; Simulation; Marine
|Authors|| || Top |
- Zetina-Rejón, M.J.
- Arreguín-Sánchez, F.
- Chávez, E.A.
Huizache-Caimanero is a tropical brackishwater lagoon in western Mexico where there has been an important shrimp fisheryfor a long time. Four other, less important fish groups in this ecosystem are also exploited. We use a previously constructedEcopath model to explore harvesting strategies for multispecies management. Changes in fishing mortality were simulated usingthe search for optimum strategies implemented in Ecopath with Ecosim. Simulations covering a period of 30 years were run.Several scenarios were tested in which fishing rates were changed to optimize ecological, economical, and social criteria. Thebiomass of each group, catches, and values of economic, social, and ecological indicators were compared between scenarios. Ingeneral terms, scenarios considering economic and social criteria produced high fishing rates that would cause the depletion ofseveral groups. When an ecological criterion was considered, the impact on biomass was reduced due to a conservative fishingstrategy. We discuss about effects of input parameters in the searching routine.