Automatic classification structure of trawl net

Abstract

The invention discloses an automatic classification structure of a trawl net, and aims to provide the automatic classification structure of the trawl net which can automatically separate fishes from shrimps in a bottom trawl net so that the problems that by adopting existing shrimping trawl nets, fishermen need to spend much of energy to separate fishes from shrimps when the fishermen deal with fishing gains are effectively solved. The automatic classification structure of the trawl net comprises the bottom trawl net, wherein the bottom trawl net comprises a main net bag positioned on the front part of the bottom trawl net, a fish-keeping net bag and a shrimp-keeping net bag, and a fish-shrimp separation selecting device; the fish-keeping net bag and the shrimp-keeping net bag are positioned on the tail part of the bottom trawl net and communicate with the main net bag; the shrimp-keeping net bag is positioned above the fish-keeping net bag; the fish-shrimp separation selecting devicecomprises a fish-shrimp separation partitioning layer which is positioned in the main net bag and is used for blocking an inlet of the fish-keeping net bag; and the fish-shrimp separation partitioninglayer is used for separating the fishes and the shrimps entering the main net bag, so that the fishes in the main net bag enter the fish-keeping net bag and the shrimps in the main net bag enter theshrimp-keeping net bag.

Description

technical field [0001] The invention relates to the field of bottom trawl nets, in particular to an automatic classification structure for trawl nets. Background technique [0002] An important feature of the current bottom trawl fishery is the diversity of the catch composition, which consists mostly of fish and shrimp. The bycatch nature of bottom trawling fisheries can lead to considerable effort by the fisherman to separate the catch (separate fish from shrimp) when handling the catch after hauling. In view of this, it is very meaningful to further study and improve this type of bottom trawling gear to improve the efficiency of catch separation. Contents of the invention [0003] The purpose of the present invention is to provide a trawl automatic classification structure that can automatically separate fish and shrimp in the bottom trawl, thereby effectively solving the problem that the current shrimp trawl exists and fishermen need to spend a lot of energy to separa...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a trawl automatic classification structure that can automatically separate fish and shrimp in the bottom trawl, thereby effectively solving the problem that the current shrimp trawl exists, and fishermen need to spend a lot of energy to separate fish and shrimp when handling catches

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