Cuttlefish egg adherance

Abstract

The invention discloses a cuttlefish egg adherance. The cuttlefish egg adherance does not influence the egg laying efficiency of cuttlefish and can effectively avoid the problems that a large number of cuttlefish eggs are stacked together, so that the development of a large number of cuttlefish eggs wrapped in the middle is delayed, even the cuttlefish eggs are rotten and dead, and the incubationsurvival rate is seriously reduced. The cuttlefish egg adherance comprises a suspension frame and a self-adjusting type egg attaching mechanism. The suspension frame comprises a transverse top rod, atransverse lower rod and a transverse bottom rod which are sequentially distributed from top to bottom, the suspension frame is supported on the seabed through the transverse bottom rod, and the buoyancy of the transverse top rod is larger than the gravity so that the transverse top rod can suspend in water; and the self-adjusting type egg attaching mechanism comprises an isolation net cage fixedto the suspension frame, an upper guide wheel rotationally arranged on the transverse top rod, a lower guide wheel rotationally arranged on the transverse lower rod, an annular egg attaching rope surrounding the upper guide wheel and the lower guide wheel, and a plurality of self-adjusting devices sequentially distributed in the isolation net cage from top to bottom.

Description

technical field [0001] The invention relates to an attachment device, in particular to a squid egg attachment base. Background technique [0002] To lay eggs, squid needs to lay their eggs on attachments, and they have higher requirements for attachments. They usually choose to have a firmer fixation and a smoother surface. In the waters of the spawning grounds, due to the serious shortage of gorgonians, the main spawning attachments of the squid, it is far from meeting the needs of the parent squid to lay eggs. As a result, many fertilized eggs are attached to some tender branch-shaped seaweed, and the squid attached to the seaweed The fertilized eggs are easy to fall off when they encounter 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, the squid fertilized eggs will die, and the hatching rate of the squid fertilized eggs will be seriously reduced. Therefore, while strengthening the proliferatio...

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

[0003] For this reason, a large amount of artificial egg-attached bases are applied 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

[0004] In order to solve this problem, some inventors have improved the artificial egg-attachment of squid. For example, the Chinese patent publication number is CN110352881A. The name of the invention is a device for artificially inducing squid to lay eggs. The application is passed Disturb the bar to drive away the squid, 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 not only will the parent squid in the spawning startled, but also affect the quality of the squid. Spawning efficiency; moreover, squid need to constantly change the spawning site (generally, the spawning capacity of a squid reaches several thousand), which will affect the spawning efficiency of squid; on the other hand, it will also greatly reduce the The number of string eggs makes the demand for the number of artificial egg bases increase sharply

Images