A kind of method and device suitable for oyster seabed culture

Abstract

A method and device suitable for oyster seabed culturing, the cultivating method comprises: selecting a sea area for culturing; selecting oyster seedlings; designing an oyster seabed cultivating device; : During oyster farming, oysters can be harvested when they reach commercial specifications and their soft parts are plump. The aquaculture device comprises an upper floating body part and a lower fish reef structure, the floating body part is formed by a growing rope as a series structure, and connected in series from top to bottom is a pressure-resistant buoyant body and a plurality of shells and hanging rings, the fish reef The structure is a hollow base body, the upper part of which is provided with a beam, the hanging ring is connected and fixed with the beam, and the floating body part is connected and fixed with the fish reef structure. The invention develops and utilizes the seabed oyster cultivation sea area in the open sea, is resistant to wind, waves and shedding, has few attachments, can cultivate large-sized oysters, and can significantly improve the quality and output of the cultivated oysters.

Description

technical field [0001] The invention relates to a method for culturing oysters, in particular to a method suitable for cultivating sea bottom oysters in the open sea, and belongs to the field of aquaculture. Background technique [0002] Oyster is one of the four major cultured shellfish in my country, and its output in 2019 was 5.2256 million tons (2020 China Fishery Statistical Yearbook), accounting for 1 / 3 of my country's total shellfish aquaculture 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 raft sling culture on the surface of the shallow sea, and it is cultured on the surface of the inland sea. Due to the strong wind and waves on the surface of the sea, the oysters cultivated on the sling grow as the oysters grow, and the sling cannot support the oysters with large weight and volume, which makes the oysters easily fall off the sling, resulting in a large reduction in ...

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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