Abstract
Morphometric characteristics and reproductive maturation were studied in Metapenaeus ensis from commercial catches in Hong Kong from January 1990 to June 1991. Morphometric equations for males, and females at different stages of ovarian maturation, are presented. Females were heavier than males of the same body length, and females with developing and mature ovaries were generally heavier than immature females of the same length. Analyses of the gonadosomatic index and percentage of mature females indicate that the spawning season was from February/March to November. Fecundity varied from 80 000 to 800 000 eggs per spawn and increased with female size.
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