Discard composition of the bottom trawl fishery in Babadıllimanı Bight, Mersin, Turkey (northeastern Mediterranean)

Hacer YELDAN, Erdoğan ÇİÇEK, Dursun AVŞAR, Meltem MANAŞIRLI

Abstract

This research aimed to estimate the composition of discards from the bottom trawl fishery in Babadillimani Bight (Cilician Basin, Northern Mediterranean). During May 1999 to April 2000, a deep trawl net was used with a one-hour haul duration in each depth zone per month. A total of 89 fish, seven cephalopods, and 24 crustacean species were captured. The proportion of the total harvest that was discarded varied each month, ranging from 30.97% to 71.68%, with an average of 58.2%. The mean discard proportion of the total yield decreased with increasing depth, being 30.5%, 22.0%, and 5.5% in the 0–50 m, 50–100 m, and deeper than 100 m zones respectively. Crustaceans made up the largest proportion of the total discards (53.3%), followed by fish (42.3%), and cephalopods (4.4%).

Keywords

Bottom trawling, Northeastern Mediterranean, Discard, Fish, Crustacea, Cephalopoda

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References

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