静水池塘主养鲤食用鱼放养模式的初步研究

The preliminary study on the stocking model of common carp (Cyprinus carpio L.) for the edible fish culturing chiefly in the still water ponds

This article reports the comparative experiments with the stocking model of common carp (Cyprinus carpio L.) for the edible fish culturing chiefly in the still water ponds in Zhenlai of Jilin province from 1988 to 1990. The authors propose the pond of net yield of 3,000,4,500 and 6,000 kg/ha in north of China, stocking optimun density of common carp are 6,000-7,500, 10,500 and 15,000-18 000, stocking optimun size are 40-50, 75 and 100g. In this paper, the proportion of silver carp (Hypodhthalmichtys molitrix) to bighead (Aristichthys hobilis) and standing fish population, stocking density and size of silver carp and bighead mixed culture in ponds were disscused) and also the characteristic of water quality (ion of chief, nutrient and dissolved oxygen) conversion rates of organisms(energy) and economic effects were judged overall for the model.