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Detailed Ecological Assessment Report 2008 – Keenjhar Lake Penaeus indicus is another important species found in the Keti Bunder area and is found and caught in reasonable abundance though like most of the other commercially important species of the area its frequency in the catch has also reduced than the normal over the last decades. • Penaeus meruginus De Man, 1882 Kingdom: Animalia Phylum: Arthropoda Subphylum: Crustacea Class: Malacostraca’ Order: Decapoda Suborder: Dendrobranchiata Superfamily: Penaeoidea Family: Penaeidae Genus: Penaeus Image 20 – Penaeus meruginus This species is commonly called ‘Jaira’ or ‘Jiaro’ by the locals in Sindh. It is abundant in Keti Bunder area and many local fishermen depend solely on this species for their livelihood. This species is commercially important in the Persian Gulf and Pakistan. In India this species has often been confused with Penaeus indicus so that its present economic status is not accurately known but it certainly contributes to the commercial fishery in Sindh. This widely distributed and important Indo-West Pacific species lives in shallow water between 10 and 45 meters on muddy bottoms. Juveniles are estuarine, while adults mostly marine. This species ranges from the Persian Gulf and Pakistan through the Malay Archipelago and South China Sea to Australia, where it is found from Western Australia all the way around the north coast to northern New South Wales. • Parapenaeopsis stylifera Phylum: Arthropoda Class: Crustacea Series: Eumalacostraca Superorder: Eucarida Order: Decapoda Suborder: Natantia Infraorder : Penaeidea Superfamily : Penaeoidea Family: Penaeidae Genus: Parapenaeopsis Species: stylifera Image 21 – Parapenaeopsis stylifera Parapenaeopsis stylifera is another important crustacean found in the Gharo area and is caught in sufficient abundance. It is locally called ‘Kiddi’ WWF Pakistan – Indus for All Programme Page 105 of 188
Detailed Ecological Assessment Report 2008 – Keenjhar Lake by the fishermen. It is a commercially important species of prawn in the Arabian Sea and it is found in estuarine areas and thus it seems to have developed some interesting environmental tolerance and physiological resistance to the estuarine conditions. Attempts have been e to rear this species in the laboratories in Karachi and successful rearing practices including the rearing of the eggs and larvae have also been executed recently near the sea shore of Karachi. • Scylla serrata Phylum: Arthropoda Subphylum: Crustacea Class: Malacostraca Order: Decapoda Infraorder: Brachyura Family: Portunidae Genus: Scylla Species: S. serrata Commonly called Mangrove crab or mud crab, this species is found in huge abundance in Keti Bunder area. It is locally named as ‘khakua’ by the fishermen community at Keti Bunder and surrounding areas. This mud crab inhabits muddy bottoms in brackish water along the shoreline, mangrove areas, and river mouths; hence it is given the name mud crab or mangrove crab. It has been reported that both, temperature and salinity can affect the nitrogen metabolism of mud crabs. At low salinity i.e. 10 ppt, there is catabolism of amino acid and formation of ammonia to reduce osmolarity. As regards the reproduction of this economically imperative crab, mating takes place as early as the first year of life after the female undergoes a pre-copulatory molt. As regards its feeding habits, 50% of the identifiable material in the foreguts is mollusks, 20-22% crustaceans, and the remaining 28-30% consisting of small amounts of plants and debris. • Partunus pelagicus Phylum: Arthropoda Class: Crustacea Series: Eumalacostraca Superorder: Eucarida Order : Decapoda Infraorder : Brachyura Family :Portunidae Genus : Portunus Sub Genus : Portunus Species : pelagicus Authority : Linnaeus Image 22 – Scylla serrata Image 23 – Partunus pelagicus WWF Pakistan – Indus for All Programme Page 106 of 188
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Page 88 and 89: 42 Leiognathus splendens Leiognathi
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Page 112 and 113: Mukhtar, 1988 14 Narejo, 1996 Detai
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Page 168 and 169: Index value 0.96 0.94 0.92 Detailed
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Disclaimer note - WWF - Pakistan

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