鄱阳湖渔业资源现状及其环境监测

1997－1999年对鄱阳湖区渔业资源与环境进行了动态监测，统计渔获物2778kg，生物学测定1627尾，采集到鱼类122种，隶属于12目21科77属，其中鲤科鱼类种类最多，计65种，占53．3％，湖区渔获物个体偏小，以1－2龄鱼为主，鲤、鲫基本上是当年鱼，鄱阳湖现有鲤，鲫产卵场33处，主要分布在湖区东，南，西部，年均有效产卵面积616．66km^2，年均产卵量56．85亿，鄱阳湖区湖口，蛤蟆石，星子，康山水域湖水的pH,COD,Cr^ 6,Cd,Zn,Cu,Pb，总磷，氨氮，总汞均未超过渔业水质标准，鄱阳湖区水质良好。

THE STATUS QUO OF FISHERY RESOURCES OF POYANG LAKE AND ITS ENVIRONMENTAL MONITORING

From 1997-1999 , a dynamic monitoring of fishery resources and environment was carried out in Poyang Lake. A total of 2778 kg fish were captured with various fishing gears. The biological characters of 1627 fishes were measured. Fishes of 12 orders, 21 families and 122 species were collected,of which the fishes of Cyprinidae were 65 species and accounted for 53.3%. Most of the fish were very small and only 1-2 ages, and the carp, goldfish and silver carp were this year fish. The 33 spawning sites of the carp and goldfish in Poyang Lake distributed in the east, sourth and west of the lake, and the yearly area was 616.66km 2, the yearly spawning amount was 5685 million of eggs. Every index (pH, COD, Cr +6 , Cd, Zn, Cu, Pb, TN, TP, NH 4 N, Hg)of the water in Hukou, Hamoshi, Xingzhi, and Kangshan accorded with the standards, which showed the quality of the water in the lake is fine.