Growth and sexual maturity of a population of Saccostrea palmula (Mollusca: Bivalvia), Costa Rica

被引：0
|
作者：
Peña, JHC [1 ]
Quesada, MP [1 ]
Hernández, MU [1 ]
Vargas, OS [1 ]
机构：
[1] Univ Nacl, Escuela Ciencias Biol, LARNAVISI, Heredia 863000, Costa Rica
来源：
REVISTA DE BIOLOGIA TROPICAL | 2001年 / 49卷 / 3-4期
关键词：
Saccostrea palmula. oyster; growth; sexual maturity; condition index; Costa Rica;
D O I：
暂无
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Growth and sexual maturity in Saccostrea palmula were studied between May 1998 and May 1999, in Morales estuary, Punta Morales, Puntarenas, Costa Rica (n = 540 individuals according to sample size equation). The weight-length relationship for the population was Pt = 2.13 x 10(-2) Lt(1.6602) and von Bertalanffy growth function was Lt = 68.2 (1-e(-0.1577)). The mean sex ratio was 1,00 male: 0.92 females with sexually mature individuals found throughout the year, Spawning activity was highest between November and January. The mean condition index (IC=PCF/PV x 100) for the population was 121.53 +/- 2.24 and the mean meat yield was 10.32 = 1.64%.
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页码：877 / 882
页数：6
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