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Habitat preference, distribution and growth of postlarvae, juvenile and pre‐adult Indian white shrimp, Penaeus indicus H. Milne Edwards, in Ghubat Hasish Bay, Gulf of Masirah, Sultanate of Oman
Author(s) -
MOHAN R.,
SIDDEEK M.S.M.
Publication year - 1996
Publication title -
fisheries management and ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 55
eISSN - 1365-2400
pISSN - 0969-997X
DOI - 10.1111/j.1365-2400.1996.tb00140.x
Subject(s) - shrimp , juvenile , biology , fishery , bay , penaeus , decapoda , abundance (ecology) , crustacean , ecology , geography , archaeology
An investigation of postlarvae, early juveniles and pre‐adult Indian white shrimp, Penaeus indicus H. Milne Edwards, in Ghubat Hasish Bay around Mahawt Island in the Gulf of Masirah was carried out from January 1991 to December 1992. Peak abundance of postlarvae and juveniles was observed during March and April. The size of newly recruited postlarvae ranged from 9 to 11 mm total length. The highest concentration of postlarvae and early juveniles occurred in muddy substratum covered by mangrove detritus. Postlarvae and juvenile densities varied significantly between years, seasons and habitats. The main fishery recruitment observed in late August and early September resulted from the major postlarval abundance peaks in March and April. Growth rates of postlarvae, juveniles and pre‐adult shrimp of the main cohort recruited in March were calculated. During the peak fishing season (September to November), pre‐adults were concentrated at depths of 3–5 m in muddy substrata south‐west of Mahawt Island. An environmental impact study is recommended in this area prior to the proposed harbour development at Mahawt.