demersal fishes

The culture species of freshwater fisheries in China are most midwater and demersal fishes caught by traditional fishing gears and drug .

目前我国淡水水域的养殖对象大多为中、底层鱼类，仍主要采用传统渔具捕捞。

The dietary overlap coefficient and food resources of enhancement species among demersal fishes in Bohai Sea

渤海重要底层鱼类食物重叠系数与鱼类增殖

Essential characteristics and their seasonal variations of community structure of demersal fishes in the Xiamen Harbour

厦门港湾底栖鱼类群落结构的基本特征及其季节差异

The pattern of probability distribution on the density of demersal fishes stock in the northern continental shelf of the South China Sea

南海北部大陆架底层鱼类资源密度概率分布型的研究

Therefore , the effect on the breeding and resource enhancement of demersal fishes brought by freshwater snail cannot be ignored .

因此，螺类对产粘性卵的鱼类的繁殖和资源增殖所带来的影响不容忽视。

This paper is based on photographs which were detected by a colour-sounder surveying demersal fishes and DSL rhythmic vertical migration in the northern part ' area of South China Sea .

利用彩色显示回声探测仪在南海北部水域中测到的图象进行调查底栖鱼类和DSL的垂直移动；