EFFECTS OF DAMS CONSTRUCTION ON THE AYU(PLECOGLOSSUS ALTIVELIS)RESOURCE IN THE LIAODONG PENINSULA
水利建设对辽东半岛香鱼Plecoglossus altivelis的影响

he dams constructed in the Liaodong Peninsula were found to have caused the migratory ayu(Plecoglessus altivelis)resource being declined and to have allowed some of the re-source to be turned to the landlocked ayu populations in the Biliuhe Reservoir and the Zhuan-jiaolou Reservoir. The landlocked ayu was characterizes by the following aspects.(1)Gettingminiatured individuals:the body weight and length reduced from 150-250g(average 204g)and 20-25cm(average 22.6cm)for the migratory ayu to 13-73g(average 36.5...