Ear-puncturing and hanging cultivation device for patinopecten yessoensis and hanging cultivation method

Abstract

The invention discloses an ear-puncturing and hanging cultivation device for patinopecten yessoensis and a hanging cultivation method. The device comprises multiple mutual parallel culture hanging plates, a vertical lifting rope penetrating the center of plates, the lifting rope penetrating the center of plates penetrates the centers of the culture hanging plates and enables the culture hanging plates to isometrically fix on the lifting rope penetrating the center of plates; plate edges of adjacent culture hanging plates are connected through plate edge lifting ropes, and each culture hanging plate is enabled to be vertical to the lifting rope penetrating the center of plates; the plate edges of the culture hanging plates at the head end and the tail end are fixedly connected with the lifting rope penetrating the center of plates through plate edge lifting ropes; the upper end of the lifting rope penetrating the center of plates is fixed on a floating raft, and the lower end of lifting rope penetrating the center of plates is provided with a sinker. The device disclosed by the invention adopts the culture hanging plates to ensure the drainability of the device. According to the hanging cultivation method, the patinopecten yessoensis is isometrically hung on the culture hanging plates in each layer of the device, then is put in the raft area for cultivation, and the problem of easy twining when ear-puncturing and rope hanging is solved, according to the device disclosed by the invention, due to the fact that netting is not needed for wrapping, the problem that fluid mud and other marine organisms are easily adhered during culturing in a lantern net is solved, and a good growth condition is provided for culturing the patinopecten yessoensis.

Description

technical field [0001] The invention relates to a scallop culture device and a culture method, in particular to a scallop ear-piercing hanging culture device and a hanging culture method. Background technique [0002] Existing scallop culture is mainly divided into two categories: bottom sowing culture and raft culture. Among them, the disadvantages of bottom-sowing culture are: large-scale breeding sea area is required, the growth cycle of scallops is long, the breeding density is low, and they are easily damaged by predators. When harvesting, truss trawling is required, which affects the bottom ecological environment of the breeding sea area. The return rate is low, and the growth of scallop seedlings is easily affected by the soft mud bottom. Raft farming is divided into three methods: ear-piercing rope hanging, lantern net and pearl net (mainly used devices such as figure 1 shown). Among them, the main disadvantage of the ear-piercing rope hanging is: when the vertica...

AI Technical Summary

Problems solved by technology

Among them, the disadvantages of bottom-sowing culture are: large-scale breeding sea area is required, the growth cycle of scallops is long, the breeding density is low, and they are easily damaged by predators. When harvesting, truss trawling is required, which affects the bottom ecological environment of the breeding sea area. The return rate is low, and the growth of scallop seedlings is easily affected by the soft mud bottom

Among them, the main disadvantage of the ear-piercing rope hanging is: when the vertical hanging is affected by the flow field, the hanging ropes are prone to twisting, which leads to an increase in the shedding rate of scallops and reduces the output of scallops.

[0004] ① During the scallop cultivation process, the net cages and trays are easy to adhere to floating mud and marine organisms such as mussels, hooked shrimps, and perforated sponges, which reduces the growth space of scallops and also causes poor water flow, so that scallops that feed on filtered phytoplankton can be harvested. Insufficient bait will reduce the survival rate of scallops and affect the growth of scallops;

[0005] ② In order to keep the cage water flowing smoothly, it needs to be cleaned regularly, which not only consumes manpower and material resources, but also increases the cost;

[0006] ③ Due to the existence of the netting, the resistance of the net cage is relatively high, which causes the net cage to shift, causing the scallops to accumulate in a certain direction, and the scallops are squeezed, collided, and occluded with each other, which reduces the survival rate of the scallops and affects the growth of the scallops.

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