Method and device suitable for oyster seabed culture

Abstract

The invention discloses a method and a device suitable for oyster seabed culture. The culture method comprises the following steps: selecting a culture sea area; selecting young oysters; designing an oyster seabed culture device; putting the culture device into the culture sea area and enabling the whole device to be located on the seabed; and management in the oyster culture period: during the oyster culture period, harvesting oysters when the oysters reach the commodity specification and the soft parts of the oysters are fat and full. The culture device comprises an upper floating body part and a lower fish reef structure, the floating body part is of a serial connection structure formed by culture ropes, a pressure-resistant buoyancy body, a plurality of shells and hanging rings are connected in series from top to bottom, the fish reef structure is a hollow base body, a cross beam is arranged on the upper portion of the fish reef structure, the hanging rings are fixedly connected with the cross beam, and the floating body part is fixedly connected with the fish reef structure. Open sea seabed oyster culture sea areas are developed and utilized, storm resistance and falling prevention are achieved, the number of attachments is small, large-size oysters can be cultured, and the quality and yield of the cultured oysters can be remarkably improved.

Description

technical field [0001] The invention relates to a method for cultivating oysters, in particular to a method suitable for cultivating sea bottom oysters, belonging to the field of aquaculture. Background technique [0002] Oyster is one of the four major cultured shellfish in my country. Its output in 2019 was 5.2256 million tons (2020 China Fishery Statistical Yearbook), accounting for 1 / 3 of my country's total shellfish culture production and more than 85% of the world's total oyster production. At present, the oyster culture method in my country is mainly the traditional shallow sea surface raft type sling culture, and the oyster culture is cultivated on the surface of the inland sea. Due to the strong wind and waves on the surface of the sea area, as the oysters continue to grow, the slings are difficult to support oysters with a large weight and volume, resulting in oysters easily falling off the slings, resulting in a large reduction in oyster production; and this farmi...

AI Technical Summary

Problems solved by technology

Due to the strong wind and waves on the surface of the sea area, as the oysters continue to grow, the slings are difficult to support oysters with a large weight and volume, resulting in oysters easily falling off the slings, resulting in a large reduction in oyster production; and this farming model Large-sized, high-quality oysters cannot be grown due to shedding

In addition, the raft-type sling farming model is not suitable for deep water in the open sea or sea areas with strong waves. It is only suitable for calm inner bays and shallow seas. Therefore, the breeding area is limited to the surface area of ​​​​inshore sea areas, and there are few wind waves and attached organisms. Bottom area cultured oysters are unexploited and exploited

[0003] In addition, the above-mentioned raft-type oysters are raised in the upper layer of the sea area. Due to the strong light and many attached organisms, a large number of mussels and other attachments are attached to the surface of the oysters cultured by raft-type suspension; these attachments affect the growth of oysters. , which further affects oyster quality and market value

In addition, oysters cultured on raft suspension ropes are generally floated near the coast, which not only affects the sea area landscape, but also affects the navigation of ships on the sea surface, causing inconvenience to navigation management

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