Abstract:
This study was conducted in the marine hatche.ry of AKUATROP, Universiti
Malaysia Terengganu using orange mud crab, Scylla olivacea obtained from Setiu
Wetlands, Terengganu. The significance of this study is to develop berried female
production technique in captivity using different temperature regimes and photoperiod.
This study was done to examine ovarian development and oviposition of laboratory
reared S. olivacea under different water temperature regimes; low temperature
°
condition (20
°
C - 24
C), control temperature condition (25
°
°
C - 29
C) and high
temperature condition (28
°
°
C - 30
C) as well as under different photoperiod regimes,
control photoperiod condition (12 hours daylight and 12 hours darkness), 24 hours
daylight and 24 hours darkness. However, only 10 crabs managed to achieve stage 4
maturity; 3 crabs in 24 hours Daylight regime, 2 crabs in low temperature regime and
5 in high temperature regime.
