关门山水库鱼产力及合理利用途径的研究

1994年5月到10月和1996年5月到10月对关门山水库进行了鱼产力的调查。水库的饵料生物量分别是：浮游植物3．23mg/L；浮游动物0．95mg/L;水生高等植物450g/m2水生底栖动物40，3g/m2。水库的鱼产力为217．29kg/hm2，其中浮游植物鱼产力129kg/hm；浮游动物鱼产力58．2kg/hm2；水生植物鱼产力18kg/hm2；底栖动物鱼产力12．09kg／hm2。毛初级生产量48．01卡／m2·日；净初级生产量11．79卡／m2·日。合理利用途径是：充分利用水域自然饵料和优越的水质条件，突出本地区冷水鱼类的优势，以养为主，增殖、养殖捕捞相结合，提高鱼产量，增加经济效益，以达到合理利用水域资源形成高产、高效的良性循环。

RESEARCH OF FISH-PRODUCTION AND ITS REASONABLE VTILIZATION OF GUAN MEN SHAN RESERVOIR

An investigation was made of fish - production of Guan Men Shan Reservoir in May 1994 and in october 1996. Fish - feedstuff biomass of reservoir of phytoplankton is 3. 23mg/L;that of zooplankton is 0.91rng/L; that of aguahc advaned vegetation is 450g/m2; that of aquatic rock -bottom animal is 40.3g/m2Fish - production is 217 - 29kg/hm. Among them fish - production of phytoplankton is 129kg/hm2; that of zooplankton is 58. 2kgl/hm; that of aquatic vegetation is 18kg/hm2; that of rock - bottomanimal is 12.09kg/hm. Gross primary production is 48. 01 cal/m2' d, net primmary production is 11.79cal/m2' d. The way of reasonable vtilization is that we must make full use of crude fish - feedstuff of waterarea and predominant water - quality condition and local advantage of cold water - fish, we must depend on breed aopatics and combine with halieutics. Then we can increase fish - production and economical benefit. So that we can make reasonable use of watr - area - resources and form the be-nign and high - production and high - benefit loop.