提高水库大银鱼产量的技术措施

Technical Measures for Raising Output of Protosalanx hyalocranius in Reservoir

对费县8座水库移植大银鱼经验进行总结，提出提高水库大银鱼产量的几项关键性技术措施：查清水质状况和浮游生物量，确定移植密度；减少鲢、鳙等滤食性鱼类放养量；确定适宜密度为300～500尾／亩；确定适宜捕捞时间为9月下旬～11月中旬；及时追施过磷酸钙、碳铵等化肥；确定禁渔期、禁渔区，以法治渔。

After having summarized the experiences of transplanting salangid(Protosalanx hyalocranius) into 8 reservoirs in Fei County of Shandong Province, we put forwardsome technical measures for raising output of salangld transplanted into reservoir,such asmaking a thorough investigation of the water quality and the plankton content in the reservoir, delimiting the transplanting density, reducing the stocking numbers of the silver carpand big head carp. The paper came t0 a conclusions:in Fei County reservoirs the reasonabletransplanting density is 300～500 ind. /mu;the tlme suitable for catching is from the last tenday period of September to the middle ten-day period of November;spread calcium superphosphate and arnmonium carbonate in time;stipulate closed fishing season and fishing forbidden zone to govern fishery by law.