Changes of fishing structure and biodiversity before and after three years′ spring fishing off were analyzed and the effects of the spring fishing off were assessed preliminarily according the monitoring data by drift net in Yibin,Banan and Wanzhou reaches of the upper Yangtze River in 2000～2005.

The structure of catch and growth characteristics of Chinese snakehead fish, Channa argus (Cantor), was analysed based on the samples collected during April～May of 1992 and 1993.

Research progress on by-catch reduction in the trawl fishery abroad;

Because of the selectivity of fishing gear and mixed distribution of fish species, there will be inevitably by-catches and discards when people catch the target species.

With less selectivity in trawling,there will be inevitably much by-catch and many discards during catching the target species.

Gill net, cast net, and shrimp pot have been used to survey the catch in the artificial reef area of Zhongshan city in high flow period and in dry season separately.

Based on the surveys of squid jig operation in the Southwest Atlantic in 2000, an analysis on biological characteristics of the catch - Illex argentinus is reported in the paper.

We conduct a report on the fish in the upper reaches of the Minjiang River in terms of their fauna, ecotypes, resource groups and the composition of the catch during April and May in 1997, thus providing a valuable reference for fish classification, geography, fish management department as well as local leaders at all levels.

The recapture rate of different size of stocked crabs, difference of growth and mature by female and male, and reasonable size of the stocked crab were also .

Study on the component of gill-net catches around the south region of the Yellow Sea in summer

This paper gives a description about the cabin preservation device of catches based on ozone technologies such as the composition,the working process and operation control,the requirement of the parameters during operation as well as its application on the sterilization and preservation of catches stored in ice fishing cabin without refrigeration equipment.

This paper,based on the data of many years\' catches in Lake Taihu,analyzed the community structure of fishes in Lake Taihu and their succession dynamics.