Abstract: The fishery resources were investigated and evaluated in artificial reefs in deep-water marine ranching area for three years by hand line fishing and cage net survey. The results showed that 6 fish species were captured, including the economically important species fat greenlingHexagrammosotakii, Schlegel’s rockfishSebastesschlegeli, with the maximal CPUE of 97.8 g/(human·hook·h)in fat greenling and the maximal CPUE of 281.8 g/(human·hook·h) in Schlegel’s rockfish by hand-line fishing, and with the maximal CPUE of 2039.2 g/(cage·h) in fat greenling and the maximal CPUE of 163.4 g/(cage·h) in Schlegel’s rockfish by a trap net. The fat greenling in spring had body weight gain 0.12 times higher in 2012 than in 2011 and the Schlegel’s rockfish in spring showed body weight gain 0.23 times higher in 2012 than in 2011,indicating that the resources were significantly increased. There was higher catch by hand line fishing than by a trap which was more suitable for operation in artificial reef area, particularly in spring. The fish in the artificial reefs grew constantly by the analysis of Von-Bertalanffy growth equation, and there were significant differences in condition factors in fat greenling, Schlegel’s rockfish, and Fang’s blennyEnedriasfangiWang et Wang. In 2013, the fat greenling captured in the artificial reefs by a trap had average body weight as 9.36 times as the fish captured in the reefs-free area, indicating that the artificial reefs play an effective role in conservation, and proliferation of fish resources.
2014, Vol. 29 
