胡陈港水库的浮游生物

PLANKTONS IN HUCHENGANG RESERVOIR

１９９０年３～８月，对胡陈港水库浮游生物的种类和数量进行了调查。结果表明，胡陈港水库的浮游植物共５２属。其中，蓝藻门７属，绿藻门１９属，硅藻门１７属，裸藻门３属，甲藻门４属，金藻门１属，黄藻门１属。其年平均数为１３０．３９×１０￣４个／Ｌ，最高峰出现在７月份，为１６２．８６×１０￣４个／Ｌ。浮游动物３０属。其中，原生动物７属，轮虫１２属，枝角类２属，桡足类９属。其年平均数为５４４０个／Ｌ，以轮虫占绝对优势。根据浮游生物饵料资源状况，该库适于以养白鲢为主，配养梭鱼、鲻鱼和花鲢。

A quantitative investigation was made of the composition of the planktons in Huchengang Reservoir in March to August,1990.Altogether 52 genera of planktonic plants were found,of which 7 belonged to Cynophxta,19 to Chlorophyta,17 tO Bacillariophyta,3 to Euglenophta,4 to Pyrrophyta 1 to Chrysophyta and 1 to Xanthopyta. Thirty genera of planktonic animals were found, of which 7 belonged to Protazoa, 12 to Rotifera,2 to Cladoceta and 9 to Copepoda. The average quantityof planktonic plants in the reservoir was 130, 390, 000/L with the highest quantity of 162, 860,000/ L appearing in July, The annual average quantity of planktonic animals in the reservoir was5, 440/L,of thich species of Rotifera and Copepoda seemed to be predominant.