M. Parsa - Faculty of Marine Sciences and Technologies, University of Hormozgan, Bandar Abbas, Iran
E. Kamrani - Faculty of Marine Sciences and Technologies, University of Hormozgan, Bandar Abbas, Iran
M. Safaei - Faculty of Marine Sciences and Technologies, University of Hormozgan, Bandar Abbas, Iran
S.Y. Paighambari - Environmental and Fisheries Department, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
T. Nishida - National Research Institute of Far Seas Fisheries, Fisheries Research Agency, Shimizu, Shizuoka, Japan

One of the most visible direct impacts of fishing is the capture of non-target species, known collectively as by-catch. By-catch includes species that are unwanted and discarded (discards) and species that are retained and sold (byproduct) (Stobutzki et al., ۲۰۰۳).  

By-catch, Tuna, Purse seine, Oman Sea