Determination of catching efficiency of Eriphia verrucosa Forsk？l, (1775) by using traps and skin diving in ？anakkale Strait

This study was carried out between April 2016 and March 2017 in order to the determine the catch efficiency of warty crab (Eriphia verrucosa) in ？anakkale Strait. Fishing experiments were executed with in 6 stations by using traps and skin diving. In the study, 19 diving operations were performed by 2 divers with a mean duration of 36: 03 ± 0,002 minutes/dive. In totally 18 traps (3 traps in per stations) were used in 12 fishing trails. The traps soak times were 48 hours for each operation. As a result of fishing experiments, a total of 654 individuals belonging to 3 species and a total of 13 individuals belonging to 6 species were collected with skin diving and traps, respectively. In the experiments, a total of 598 E. verrucosa individuals, 596 of which were caught by skin diving and 2 were caught by traps as a target species. The CPUE for diving (CPUED = 14,32±3,12 individual, hours-1) were higher than the mean CPUE for traps (CPUES =0,0601 ±0,0186 individual, hours-1)