Method for artificially transplanting open sea island reef tridacna

Abstract

The invention discloses a method for artificially transplanting open sea island reef giant clams. The method comprises the following steps: fixing a metal culture cage at the seabed of a giant clam growth sea area, collecting corallite, filling the corallite in the metal culture cage, then placing giant clam in the corallite, enabling an outer sleeve film to face upwards, covering and locking a cover, and enabling the giant clam to grow. The device is high in water flow resistance, corrosion resistance, typhoon resistance and the like; even after one year, the survival rate of the tridacna can reach 60% or above without related maintenance. Therefore, the technical support can be provided for ecological restoration of the giant clam on islands far away from mainland, such as related islands in Nansha and Xiasha islands in China, and the technical guidance can also be provided for development of the giant clam culture industry.

Description

Technical field: [0001] The invention belongs to the field of marine ecological restoration, and in particular relates to a method for artificially transplanting giant clams from remote sea islands and reefs. Background technique: [0002] Tridacna belongs to the phylum Molluscs, Phyllobranchidae, Clamidae, and Tridacnaidae, and is the largest shellfish today. Some species can reach a size of about 1 meter and a weight of more than 300 kilograms; apart from the largest body size, Tridacna There are also symbiotic zooxanthellae in the clam mantle, which can perform photosynthesis under light conditions and provide nutrition for the clam, thereby realizing the autotrophic function of the clam. There are 2 genera and 10 species of giant clams, among which there are 9 species in the genus Tridacna and only 1 species in the genus Tridacna. It is distributed in the tropical waters from the western Pacific to the Indian Ocean and the east coast of Africa, but with changes in the g...

AI Technical Summary

Problems solved by technology

People have adopted many methods in the process of conserving and releasing giant clams. The ocean floating method is also an effective method suitable for the growth of giant clams. On the substrate inside, this method can avoid the invasion of snails, but this can only be a temporary breeding method, and there is no way to keep it for too long

These methods are beneficial to prevent the predation of fish, or the invasion of snails, but under the influence of strong tropical storms, these submarine structures are vulnerable, which often leads to the failure of these giant clam transplantation methods;

[0004] In these farming techniques, in addition to problems such as ocean storms, there is also the fact that the grids are easily covered by attachments, and generally need to be cleaned once every three months, requiring a lot of manpower and material resources; secondly, due to the impact of tropical storms, often destroy these devices

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