Sex Ratio And Size At First Maturity Of Blue Swimming Crab (Portunus pelagicus) Salemo Island Pangkep Regency
Abstract: Blue swimming crab
(Portunuspelagicus) is aeconomical valuable fisheries importantcommodity due to the high demand and availability jobs
created for the fishermen. Due to their high demand blue swimming crab heavily
exploited from Salemo Island. This study aimed at comparing the sex ratio and
the size at first maturity of blue swimming crab caught in mangrove ecosystems,
coral reefs, and seagrass. Sex ratio was analyzed using chi square test and the
size at first maturity was analyzed using the Spearman-Karber formula. The
results showed the sex ratio ofmales and femalessmall crab caught in every
ecosystem is balanced. The size at first maturity of blue swimming crab caught
in mangrove, seagrass and coral reefs, each to the male 81,08 mm, 102,36 mm and
102,87 mm in width and size of female 94,54 mm, 83,35 mm, 98,31 mm width. In a
reference to government regulations, the blue male swimming crab caught in the
coral reef and seagrass ecosystems have yet to size at first maturity is
allowed to be captured.
Author: Muh. Saleh Nurdin,
Syamsu Alam Ali, Dewi Yanuarita Satari
Journal Code: jpperikanangg160015
