Species composition, distribution, and potential yield of deep sea shrimp resources in the Western Sumatera of the Indian Ocean EEZ of Indonesian Waters

Study on the catch composition, distribution and potential yield of deep sea shrimp in the western of Sumatera Waters was conducted on June to July 2005 using RV Baruna Jaya IV with trawl net. This study was basically carried out by employing swept area method. The results show that the catch of shrimps were consisted of five families with 33 species and the catch of shrimp was dominated by Heterocarpus sp. around of 31% and stout red shrimp (Aristeus virilis) around of 24%. In general, distribution of deep sea shrimp resources found on the depth range of 200 to 1,000 m and species Aristeus virilis has a wide distribution in this area. Distribution of deep sea shrimp resources was higher on the depth of 750 to 1,000 m and lower on the depth of 200 to 500 m and distributed mostly at S-1 area (off Enggano Island) and rarely at S-5 area (off Aceh). Stock density of deep sea shrimp in this area fluctuated from 1,7 to 88,1 kg km super(2) with the mean of stock density was 22.0 kg km super(2). The biomass of deep sea shrimp in the west off Sumatera waters was estimated 217 ton with potential yield around of 109 ton/year.