Environment/Climate/RangePenaeus semisulcatus occurs from coastal waters down to 130m depth over sandy and muddy substrates. In the Persian Gulf Distribution It has a uniformly smooth carapace and abdomen. The rostrum has 7 or 8 dorsal teeth and 3 ventral teeth. The atrodrostral crest and groove, the carina, extends beyond the epigastral tooth with the post-rostral carina almost reaching to the rear of the carapace. The maximum total length is 180mm for males and 228mm for females,weighing up to 130g.Size / Weight / AgeThe maximum total length is 180mm for males and 228mm for females,weighing up to 130g.Short descriptionPenaeus semisulcatus has a pale brown body which sometimes shows a greenish tint on the carapace with two yellow or cream tansvers bands across the back of the carapace. The abdomen is banded with brownish grey and pale yellow transverse bands, while the antennae are banded brown and yellow. BiologyP. semisculatus spawning was at its height during December and in March, but there was a secondary peak in autumn and 90% of the female prawns reached sexual maturity after attaining a carapace length of 54mm. Spawning takes place mainly offshore.[5] The adults are marine but the juveniles prefer estuarine environments.