Journal
MARINE POLLUTION BULLETIN
Volume 81, Issue 1, Pages 80-84Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2014.02.017
Keywords
Bottom trawl; Marine debris; Selectivity grid; Plastic; Mersin Bay
Funding
- Scientific and Technological Research Council of Turkey [TUBITAK 1090684]
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In this study composition of marine debris and their blocking potential on the selectivity grid systems deployed on demersal trawls were investigated in the north eastern Mediterranean. For this, a total of 132 hauls were examined in two fishing season between 20 September 2010 and 19 February 2012. Results showed that plastic items were the most abundant debris (73% in terms of weight) and they were followed by metals (10%). Because of plastics and packing debris, it is highly probable that grids may have been blocked in 85% of trawl hauls. The bathymetric and geographical variability in the quantity of debris were evaluated, and concluded that particularly in some areas where direction of currents and bottom topography favor deposition, such devices may easily be rendered ineffective by the plastics and packing debris in particular. To solve this problem, several solution proposals are submitted. (C) 2014 Elsevier Ltd. All rights reserved.
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