Mesh size selectivity of multifilament gill net at Fakun village, north of Lake Jebba
2013
Ago, N.D. | Kwen, K. | Binyotubo, T.E.
Studies on the mesh size selectivity of multifilament gill net at Fakun village North of Lake Jebba were carried out. Four different sizes (76mm, 101mm, 126mm and 177mm) of multifilament nets were used in the construction of the gill net with hanging ratio 0.5 each. Daily catch from the nets were examined for seven weeks. The fish caught comprised of nine (9) species, belonging to six (6) families. The result of analysis of variance of the number of species caught showed significant difference (P<0.05) among the different sizes of the gill net. The catch mean weight for each mesh size (76mm, 101mm, 126mm and 177mm), was 266.91, 285.54, 305.10 and 349.02 respectively. Also the relative percentage of number of species caught by each of the mesh size was 39.48% for 76mm, 23.58% for 101mm, 22.44% for 126mm and 14.48% for 177mm, which depicts the selectivity in the catch of the gill nets in this experiment.
显示更多 [+] 显示较少 [-]Includes: 7 references
显示更多 [+] 显示较少 [-]