盐碱地池塘配置网箱养鱼试验

在盐碱地一个面积为2871m^2的鱼池中,配置4个网箱．分别放养罗非鱼、淡水白鲳和鲤,箱外放养鲢、草鱼和鲤。试验结果：罗非鱼箱(20m^2)出鱼525kg．平均单产26．3kg／m^2,淡水白鲳箱(12m^2)出鱼400kg,平均单产33.3kg／m^2,鲤鱼箱两个(各12m^2)分别出鱼488．5kg和522kg,平均单产为40．7kg／m^2和43．5kg／m^2。箱外出鲢516kg,草鱼130kg,鲤1125kg。总计全池出鱼3706．5kg,亩产鱼862kg,每亩纯盈利2173．85元。试验证明：池塘配置网箱养鱼．可同池主养几种鱼,起捕容易,管理方便。

Experiment on Fish Culture in Netcages Disposed in Saline-alkali Land Ponds

Four netcages were disposed in apond,the area of the pond was 2 871 m2. Tilapia,common carp and freshwater bream were stockedin seperate netcage. Silver carp, grass carp andcommon carp were raised in the pond outsidecages. Results showed the tilapia cage of 20 m2yielding fish 525 kg,with average production 26. 3kg/m2; freshwater bream cage of 12 m2 yleldingfish 400 kg,witll the average production 33. 3 kg/m2; two common carp cages being 12 m2 seperately,yielding fish 488. 5 kg and 522 kg,tvith the averageproduction of 40. 7 kg/m2 and 43. 5 kg/m2 seperately.Outside the cages, the production of silver carpwas 516 kg, grass carp 130 kg and common carp1 125 kg. Total production was 3 706. 5 kg, withthe average productlon per mu of 862 kg, net profit2 173. 85 yuan. It proved that disposing netcages inthe pond can polyculture main fishes in a pond,harvest and manage fishes conveniently.