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In this study, technical characteristics of bottom trawl nets commonly used in the Turkish coast of the Aegean Sea are presented. For this aim, recently used overall net plans of 1200 and modified 900 meshes (at footrope level) with cutting shaped are given according to the FAO mode of presentation. Although these nets have different design characteristics, they are similar with two seems and asymmetrical gear design feature as traditionals. In these nets there are no models, and every section of the panels have cutting shape and all of the netting materials used are knotted or braided polyethylene. Though the construction of the bottom trawl net is changed continuously by the fisherman with theirs experience, there is need for further studies to improve performance, efficiency and selectivity of the nets.
Zinc, copper, mortality, rainbow trout, heavy metal accumulation, Fish gear, Aquatic (both freshwater and marine)systems, Fishing technology