Coilia ectenes fry collecting device

Abstract

The coilia mystus fry collecting device comprises a main ship body, an auxiliary ship body is arranged on the side face of the main ship body, the auxiliary ship body is hinged to the edge of the main ship body through a first connecting rod and a second connecting rod, a fry collecting assembly is arranged between the main ship body and the auxiliary ship body, and an auxiliary floating body is arranged above the fry collecting assembly; the seedling collecting assembly is provided with a seedling collecting box, the seedling collecting box is of a square frame structure, a reinforcing frame is arranged at the inlet end of the seedling collecting box, elastic ropes are arranged on the reinforcing frame, and the elastic ropes are arranged in a staggered mode and form a net opening. The main ship body is matched with the fry collecting assembly to collect fry in a water area, and when the weight of the main ship body is increased to a certain degree, buoyancy support can be provided for the main ship body through the auxiliary ship body; the elastic ropes arranged at the inlet end of the fry collecting box in a staggered mode can intercept large-size fishes or other sundries in water in the fry collecting process, and the fishes or the sundries are prevented from entering the collecting box.

Description

technical field [0001] The invention relates to the technical field of fishery, in particular to a phoenix anchovy seed collection device. Background technique [0002] Most of the phoenix anchovies live in the shallow waters along the coast or near the sea. They usually do not move in clusters. When they enter the breeding season, they form large groups and swim to the Yangtze River Estuary, Qiantang River Estuary and other brackish and fresh water areas to lay eggs. In Hangzhou; it goes back up from the mouth of the Yangtze River to Nantong, but it is generally no more than Jiangyin. After spawning, the broodstock returns to the sea to live. [0003] A fish fry fishing device disclosed in the prior art (CN109156439A), the invention is provided with a gap at the tail of the fishnet and the gap is placed in the collection net, and the fishnet is tapered towards the end of the net, and the gap is placed in the collection net. , which can prevent the backflow of the fry, so t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an anchovy seed collection device to solve the problems of lack of buoyancy support and increased fry damage rate in existing fish fry fishing devices

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