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:: Volume 7, Issue 28 (2017) ::
joc 2017, 7(28): 67-73 Back to browse issues page
Comparing the By-catch Composition of Shrimp Trawlers in Bushehr and Hormozgan Provinces
Seyed Yousef Paighambar , Moslem Daliri, Ali Khodadoust
, sypaighambari@gau.ac.ir
Abstract:   (3986 Views)

The present study was performed to compare by-catch composition, CPUE and length frequency of fish caught in industrial shrimp trawlers in Hormozgan and Busher waters during 2013. In Hormozgan, catch composition included 13.77% shrimp, 86.24% by-catch (71.51% discards and 14.73% incidental catch). CPUE of shrimp, incidental catch and discard were estimated 55.81, 59.70 and 290.63 kg. h-1 respectively. In Bushehr, catch composition also included 6.52% shrimp, 93.48% by-catch (12.66% discards and 80.81% incidental catch). CPUE of shrimp, incidental catch and discard were also computed 3.45, 6.40 and 42.75 kg. h-1 respectively. Fifty-seven species belonging to 43 families were similar in by-catch composition in Hormozgan and Bushehr waters. Length frequency was recorded for 12 fish caught species in Bushehr and 14 species in Hormozgan. In terms of Descriptive statistics, mean length of the fish caught in Hormozgan was smaller than in Bushehr, but it was significant for Carcharhinus dussumieri, Pennahia macrophthalmus, Scomberomorus commerson, Trichiurus lepturus and Netuma thalassina (Mann– Whitney U test, P<0.05). Multidimensional Scaling showed 93%  dissimilarity in by-catch assemblegs of
bottom trawlers from Bushehr and Hormozgan waters.

Keywords: By-catch, Indasterial tawler, Shrimp, Hormozgan, Bushehr.
Full-Text [PDF 102 kb]   (1173 Downloads)    
Type of Study: Research |
Received: 2017/04/9 | Accepted: 2017/04/9 | ePublished: 2017/04/9
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Paighambar S Y, Daliri M, Khodadoust A. Comparing the By-catch Composition of Shrimp Trawlers in Bushehr and Hormozgan Provinces. joc. 2017; 7 (28) :67-73
URL: http://joc.inio.ac.ir/article-1-1059-en.html

Volume 7, Issue 28 (2017) Back to browse issues page
نشریه علمی پژوهشی اقیانوس شناسی Journal of Oceanography
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