A kind of attachment base for cage squid spawning

Abstract

The invention discloses a cage-type squid spawning attachment base, which aims to provide a method that can effectively avoid a large number of squid eggs being stacked together without affecting the spawning efficiency of parent squid, resulting in a large number of squid eggs being wrapped in the middle The squid eggs are stunted or even rotten to death, which seriously reduces the hatching rate of the caged squid egg-laying attachment base. It includes a net cage. The net cage includes a bottom net plate, a top net plate and a side fence net plate connecting the bottom net plate and the top net plate. The top net plate is provided with a vertical guide sleeve; intermittent self-adjusting egg attachment mechanism, intermittent The self-adjusting egg attachment mechanism includes a floating ball, a number of bionic eggs imitating the shape of squid eggs, a vertical guide rod slidingly arranged in the vertical guide sleeve, a lower limit block arranged on the vertical guide rod, and several sequentially from top to bottom. The resistance sleeve set on the vertical guide rod, the bionic egg is hung on the vertical guide rod through the connecting wire, and the bionic egg is evenly distributed on the vertical guide rod below the lower limit block from top to bottom.

Description

technical field [0001] The invention relates to an egg-attaching device, in particular to a cage-type squid egg-laying attachment base. Background technique [0002] Cuttlefish need to lay their eggs on attachments, and they have higher requirements for attachments. Usually, they are selected where the fixation is firmer and the surface is smoother. In the sea area of ​​the spawning ground, due to the severe shortage of gorgonians, the main spawning attachments of squids, it is far from meeting the needs of squids for spawning. As a result, many fertilized eggs are attached to some tender branch-shaped seaweeds, and the squids attached to the seaweeds The fertilized eggs are easy to fall off when encountering the impact of water flow, or even fall off in a string. Once the squid fertilized eggs fall off and sink into the seabed mud, it will cause the death of the squid fertilized eggs and seriously reduce the hatching rate of the squid fertilized eggs. Therefore, while stren...

AI Technical Summary

Problems solved by technology

In the sea area of ​​the spawning ground, due to the severe shortage of gorgonians, the main spawning attachments of squids, it is far from meeting the needs of squids for spawning. As a result, many fertilized eggs are attached to some tender branch-shaped seaweeds, and the squids attached to the seaweeds The fertilized eggs are easy to fall off when encountering the impact of water flow, or even fall off in a string. Once the squid fertilized eggs fall off and sink into the seabed mud, it will lead to the death of the squid fertilized eggs and seriously reduce the hatching rate of the squid fertilized eggs. Therefore, while strengthening the work of proliferation and release , the repair of spawning attachments must be carried out simultaneously

For this reason, a large amount of artificial egg-attached bases are used to increase the attachments of squid spawning, but the inventor found in the long-term work and investigation that the number of eggs per string of squid spawning is extremely large, and the artificial egg-attached bases Each string of eggs can reach more than 500, and the number can even reach several thousand. A large number of squid egg strings often have a large number of squid eggs stacked together, causing a large number of squid eggs wrapped in the middle to be stunted or even The problem of rotting and death seriously reduces the hatching rate, which has caused serious obstacles to the reproduction of squid resources in natural sea areas

[0003] In order to solve this problem, the inventor applied for the Chinese Patent Publication No. CN110352881A on May 5, 2019. The name of the invention is a device for artificially inducing squid to lay eggs. The way of driving away the squid is to control the number of eggs in each string of squid eggs, so as to avoid a large number of squid eggs stacked together, so that it will not only frighten the squid in spawning, but also affect the spawning efficiency of the squid; Moreover, squid need to constantly change the spawning site (generally, the spawning capacity of a squid can reach several thousand), which will affect the spawning efficiency of squid; on the other hand, it will also greatly reduce the number of eggs per string , leading to a sharp increase in the demand for the number of artificial egg-attached

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