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Estimación de la tasa de mortalidad natural y por pesca de Farfantepenaeus notialis (Pérez-Farfante, 1967) en el periodo 1995-2009 del golfo de Ana María, Cuba.

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Author
Giménez, Enrique
Delgado, Gilma
Alfonso, Servilio
Gil, Oirys
Date
2011

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Abstract
Se analiza la mortalidad natural (M) y por pesca (F) del camarón rosado Farfantepenaeus notialis, para lo cual se utilizaron datos históricos de captura de camarón en número por edad (meses) y el esfuerzo estandarizado expresado en días de pesca (dp) durante el período 1995 – 2009 en el Golfo de Ana María, región suroriental de Cuba. La relación entre la Mortalidad Total (Z) y el esfuerzo pesquero (f) tiene un valor r de 0,532 siendo significativo para un 95% de confiabilidad. La mortalidad natural ofrece un valor de 0,33 año -1 ± 0,0380. La edad de 4 y 3 meses presentaron su máximo valor de F durante 2005 y 2006 respectivamente. Hasta el año 2006 la pesca tuvo un mayor impacto sobre los individuos más jóvenes de la población lo que provocó un colapso de la pesca en el 2007, situación que se revierte en los años posteriores con nuevas medidas de manejo que permiten una mejor explotación del recurso.
Natural (M) and fishing (F) mortality for pink shrimp Farfantepenaeus notialis, was analyzed taking into account historical data of shrimp catch in number by age (months) and the standardized effort expressed in fishing days (fd) for the 1995-2009 period in Ana Maria Gulf, Cuba´s southeast region. Relationship between Total mortality (Z) and fishing effort (f) showed a value for the correlation coefficient (r) of 0,532, being significant for 95% of trustability. Natural mortality presented a value of 0, 33 year-1 ± 0, 0380. Shrimps of 4 and 3 months possess their maximum F value during 2005 and 2006 respectively. Until 2006, fishing was a higher impact on the population's youngest individuals, which caused a fishing collapse in 2007; situation reverted in later years with new management measures that allow a better exploitation of the resource.
Journal
Boletín del Centro de Investigaciones Biológicas
Volume
45
Issue/Article Nr
3
Page Range
pp.287-298
URI
http://hdl.handle.net/1834/9655
Collections
Separatas (CIP)

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