Estimaci車n del crecimiento de Lutjanus peru (Pisces: Lutjanidae) basado en capturas artesanales experimentales realizadas en el Parque Nacional Natural Gorgona y su 芍rea de infiuencia, oc谷ano Pac赤fico colombiano Growth estimate of Lutjanus peru (Pisces: Lutjanidae) from experimental small-scale fisheries in Gorgona National Natural Park and its area of infiuence in the Pacific Ocean off Colombia

作者：Julian A Caicedo; Efrain A Rubio; Luis A Zapata; Alan Giraldo

来源：Investigaciones Marinas, 2006.

• Lutjanus peru
• crecimiento
• Pacifico oriental tropical
• Parque Nacional
• Colombia
• Lutjanus peru
• growth
• tropical Eastern Pacific
• National Park
• Colombia

El Parque Nacional Natural (PNN) Gorgona, comprende un territorio insular de 1600 ha y un 芍rea marina de 60.087 ha, se encuentra localizado en el oc谷ano Pac赤fico oriental a 27 km de la costa de Colombia. En esta 芍rea se efectuaron mensualmente capturas experimentales mediante pesca artesanal, entre mayo y agosto de las temporadas 2002 y 2003, utilizando un espinel vertical o volant赤n. Los resultados de las capturas de Lutjanus peru indicaron que su crecimiento fue isom谷trico y fue descrito por la funci車n Pt = 0,0102﹞Lt3,0349. Adicionalmente, se estableci車 con base en los registros hist車ricos de pesca cient赤fica del PNN Gorgona, que la talla m赤nima y la talla media de captura para L. peru ha disminuido significativamente desde 1990. Los resultados de este trabajo recomiendan mantener la protecci車n del recurso en el 芍rea marina del PNN Gorgona y avanzar hacia el manejo efectivo en el 芍rea de infiuencia Gorgona Natural National Park covers 1600 ha of insular territory and 60087 ha of protected marine area in the Eastern Pacific Ocean (02～49%26apos;00%26quot;N-03～06%26apos;00%26quot;N and 78～06%26apos;00%26quot;W-78～18%26apos;00%26quot;W), and is located 27 km off the continent (Nari o, Colombia). A prohibition on fishing activities in Gorgona Park has resulted in sustained confiicts with small-scale and industrial fishermen. Therefore, Gorgona Park began a project to evaluate the bottom fish resources and other communities in the park%26apos;s area of infiuence. This study was designed to evaluate the state of the resources and to determine conservation strategies for them. Lutjanus peru, a seasonal resource recorded in Gorgona Park, is a key species for small-scale fisheries in the southern zone of the Colombian Pacific Ocean. Scientific fishing (small-scale methods) established that L. peru growth in Gorgona Park was isometric, being described by the function Pt = 0.0102﹞Lt3.0349. Furthermore, the historical catch record of scientific fisheries in Gorgona Park revealed that the L. peru catch size (minimum and average) in the study area has decreased since 1990. The results of this work suggest that it is both necessary to maintain the protected status of L. peru in the marine area of Gorgona Park and to advance the management of the resource in the area of infiuence