Fish catching trials by fish pots in Keban dam lake (Elaziğ)

In this study, fishing trials were conducted with the fish pots at Aydıncık (7200 hectares) and Pertek (6500 hectares ) catching area of Keban Dam Lake. Two different fish pot models were used at two catching area with control (no bait) and barley bait at three different depths (5-10, 11-15 and 16-20 m) between July 2013 and March 2014. In the study, 18 trials were practiced and 1474 fishery products were caught, 109 were cryfish (7.4 %) and 1365 fish species (92.6 %). The highest amount in the number of fish caught was Acantborama marmid with 1084 (73.7 %) indivuduals, the following is 95 (6.4%), 67 (4.6%) and 62 (4.6%) were Cyprinus carpio, Alburnus mossulensis and Lucuiobarbus esocinus respectively. Of the total 139.931 kg fish weight, 87.434 (62.48 %) kg and 52.497 (37.52 %) kg were caught with A model fish pots and B model fish pots respectively. During the study period, totally 1474 indivudals were caught of these 694 (47.0 %) with barley bait and 780 (53.0 %) in control group. Of the total catch of 139.931 kg fish 66.6% (93.209 kg) were caught in the fish pots with barley bait and 33.4 % (46.721 kg) in control fish pots. The average length of fish caught with both fish pot model were found to be closer. Average size for C.carpio, A. marmid, O. mykiss and A. leptodactylus were similar for both fish pots, but for L. esocinus, L. mysteceus, M.mastecembelus, A. mossulensis, C. umbla and B. grypus are favor of A model and for others in the favor of B model. Considering values of CPUE, it occured minumum 40.42 g in January and maximum 121.97 g in March 2014 with A model fish pots. With B model fish pots, it occured minumum 14.45 g in October 2014 and maximum 74.71 g in November 2014. The average CPUE values per trail was calculated as 67.46 g for A model and 40.51 g for B model fish pots. For both fish pot models, average CPUE values according to the months were found to be different (p<0,05). Key Words: Keban Dam Lake, Fish Pots, Bait, Catching Efficiency.