Reduction of the impact produced by sea lions on the fisheries in Mexico.

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dc.contributor.authorMaravilla-Chávez, M Oen_US
dc.contributor.authorHernández-Vázquez, Sen_US
dc.contributor.authorZavala-González, Aen_US
dc.contributor.authorOrtega-Rubio, Aen_US
dc.date.accessioned2006-10-05en_US
dc.date.accessioned2009-06-02T03:47:07Z
dc.date.available2006-10-05en_US
dc.date.available2009-06-02T03:47:07Z
dc.date.issued2006-10-05en_US
dc.description.abstractActivities of fishermen in the Bay of La Paz, B. C. S. are focused to satisfy the local demand of fish and shellfish by using approximately 300 small outboard crafts equipped with gillnets.Sea lions in this Bay attack the fishes captured damaging both product and gear. We did experimental gillnet throws to determine the frequency and preferences of sea lions in fishing areas. 52 experimental gillnet throws with time averages of 2 hr were performed, rending an average of 30 kg of fish captured and less than 10% of damages to the net.. Traditional fishermen in this Bay usually left the net the whole night, (approximately 7.50 hr, obtaining an average of 50 kg of captured fish, but the damages to the nets is in average of 40%. The cost-benefit balance comparing our alternative fishing method, which includes the use of the gillnets during the afternoon, watching for sea lions and retiring the nets at their arrival, it is more sustainable and profitable than the traditional fishing method currently used by the local fishermen. This paper suggests how to minimize the harmful effects of the sea lions on the fishermen productivity and gear, maximizing the production and reducing the damage. Our alternative method is applicable to other regions where this harmful interaction is taking place. We conclude that the coexistence of sea lions-fisheries is feasible, by applying the simple measures that we propose.en_US
dc.description.affiliationInstituto Nacional de Ecología, Programa de Investigación de los Mamiferos Marinos, Ocampo 1045. Centro, C.P. 23000.en_US
dc.identifier.citationMaravilla-Chávez MO, Hernández-Vázquez S, Zavala-González A, Ortega-Rubio A. Reduction of the impact produced by sea lions on the fisheries in Mexico. Journal of Environmental Biology. 2006 Oct; 27(4): 629-31en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/113310
dc.language.isoengen_US
dc.source.urihttps://www.geocities.com/j_environ_biol/en_US
dc.subject.meshAnimalsen_US
dc.subject.meshBehavior, Animalen_US
dc.subject.meshFisheries --economicsen_US
dc.subject.meshFishesen_US
dc.subject.meshMexicoen_US
dc.subject.meshSea Lionsen_US
dc.titleReduction of the impact produced by sea lions on the fisheries in Mexico.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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