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首页> 外文期刊>Fisheries Research >Size at sexual maturity, breeding season and fecundity of three-spot swimming crab Portunus sanguinolentus (Herbst, 1783) (Decapoda, Brachyura, Portunidae) occurring in the coastal waters of Karachi, Pakistan
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Size at sexual maturity, breeding season and fecundity of three-spot swimming crab Portunus sanguinolentus (Herbst, 1783) (Decapoda, Brachyura, Portunidae) occurring in the coastal waters of Karachi, Pakistan

机译:巴基斯坦卡拉奇沿海水域出现的三斑游泳梭子蟹Portunus sanguinolentus(1783年,Herbst)(十足目,Brachyura,Portunidae)的性成熟度,繁殖季节和繁殖力

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摘要

Size at sexual maturity of the crabs was determined by examining the condition of gonads and studying the relative growth of chelae and pleopods in male and abdomen in female crabs Results show that the crab can attain sexual maturity at a size of 64-70 mm short carapace width (=83-89 mm long carapace width) in male and 63-71 mm SCW (=81-93 mm LCW) in female crabs Fifty percent male Portunus sanguinolentus mature at 60 8 mm SCW while 50% female mature at 63 5 mm SCW The smallest female crab having eggs on its abdominal pleopod measures 63 mm SCW Berried females were found in all months except June
机译:通过检查性腺条件并研究雌性蟹的雄性和腹部的螯和百足类的相对生长来确定蟹的性成熟大小。结果表明,在64-70 mm的短甲壳中,螃蟹可以达到性成熟雄性蟹的最大宽度(= 83-89 mm长甲壳宽度)和雌性蟹的最大宽度(= 83-93 mm LCW)(雌性蟹的63-71 mm LCW)百分之五十的雄性Portunus sanguinolentus在60 8 mm SCW时成熟,而50%的雌性在63 5 mm时成熟SCW最小的雌蟹腹部腹足上有卵,长63毫米SCW在除六月外的所有月份中,发现了已成年的雌性蟹。

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