Studies On Bottom Trawling And Demersal Fishes Of Qatar Waters, Arabian Gulf

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Author Ibrahim, M. A. [محمد امين ابراهيم] en_US
Available date 2009-11-25T15:20:47Z en_US
Publication Date 1989 en_US
Citation Qatar University Science Bulletin, 1989, Vol. 9, Pages 291-308. en_US
URI http://hdl.handle.net/10576/9893 en_US
Abstract The bottom trawl fishery and their by-catch from Qatar waters were analysed on a systematic basis for species composition, length, weight and girth-among other things-during the year 1986-1987. The resuls proved a steady level of landing during the years 1981-87 with a mean of 720 + 97 metric tons/year with an expected landing (in 1990th) of about 970 tons. Great variability was noticed between hauls both qualitatively and quantitatively. It showed also that 40-60% of the catch (496-635 tons) was included as by-catch. The relatively high % of the by-catch was attributed to smaller codend mesh size, prolonged towing time and high towing speed. The study recommended increasing codend mesh size to 60 mm, reducing both towing time and towing speed. It also recommended establishment of a mini pilot plant for fish-meal and fertilizers production either on a remote island or on a floating rig working as a mother boat between the trawlers in-situ. en_US
Language en en_US
Publisher Qatar University en_US
Subject Marine Science en_US
Title Studies On Bottom Trawling And Demersal Fishes Of Qatar Waters, Arabian Gulf en_US
Type Article en_US
Pagination 291-308 en_US
Volume Number 9 en_US


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