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In-situ induced spawning method for giant clam parents

A technology for the parents and induction of triadium, which is applied in the directions of application, climate change adaptation, fish farming, etc., and achieves remarkable effects.

Active Publication Date: 2022-04-01
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented method uses an enclosed space called OXYE (Oxygenic Evolutionary Environment) that can be used during certain stages or conditions like creation of sealed tunnels on landscapes such as Chinese Devils' Turtle shells. By simulating this environment overnight it allows researchers to study how well they produced these cloned seafoods without being threatened by harmful agents. It also provides valuable data about their ability to reproduce natural ones through genetic modification techniques. Overall, this approach simplifies the way we grow marine resources quickly while ensuring safety measures are taken against threatening predators.

Problems solved by technology

This patented technical problem addressed by this patent relates to developing an efficient method for growing huge clammers that can reproduce their shellfish populations without being threatened or damaging them during harvesting operations on seafood platforms such as ships at different locations around the world.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] a. Promoting parental maturation: In mid-March 2020, in the 10m deep water-free environment of the lagoon of Yongxing Island in the Xisha Islands, 2 divers investigated its giant clam resources and found 13 adult Nova giant clam (shell length 20-30cm), distributed in 3m 2 In the area of ​​the site, GPS was used to locate the site; through visual observation, it was found that the gonads were orange-red, indicating that the gonads were immature. A little bit of gonad tissue was extracted with a syringe, and a small part of sperm could jump, and the diameter of the eggs was 80- 90 μm, not yet mature; until May 1, I found the site through GPS positioning. After diving, I found that the gonads of these giant clam nova were brownish yellow, indicating that they had matured. Further examination with a microscope found that the sperm was active and the diameter of the eggs was 100 μm. The yolk is dark in color, indicating that the egg has matured;

[0023] b. In situ inductio...

Embodiment 2

[0028] a. Parents promote maturation: At the beginning of March 2021, in the 10m deep water-free zone environment of Yongxing Island Lagoon in Xisha Islands, 2 divers placed 30 giant clam parents with a shell length of 30-40cm, and placed them at 5m 2 Within a period of time, the parent group of giant clam was formed. First, it was protected with a net cage, and the survival status was observed regularly. After fully adapting to the environment in the current period, the net cage was opened, and the site was located by GPS; Red, indicating that the gonads are immature. I extracted a little part of the gonads with a syringe, and found that a small part of the sperm can jump, and the diameter of the eggs is 80-90 μm, which has not yet reached maturity; until May 7, I found the site through GPS positioning and dived Later, it was found that the gonads of these giant clams were brownish-yellow, indicating that they were mature. Further examination with a microscope revealed that t...

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Abstract

The invention discloses an in-situ induced spawning method for giant clam parents. The method comprises the technical links of parent selection, in-situ spawning induction, larva examination, spawning induction effect evaluation and the like. The method is different from a tridacna full-artificial breeding method, a field semi-closed lagoon face and other environments are screened as an induced spawning field, in-situ induced spawning is conducted at night, the artificial fry production process is simulated as much as possible, risks and enemies are avoided, and artificial induced spawning fries consistent with wild fries are obtained in batches; and parent-child recognition is carried out by combining a modern molecular marker technology, and the in-situ induced spawning effect is evaluated. According to the method, the floating characteristic of the giant clam in the larva stage is fully utilized, large-area diffusion is achieved by means of sea waves, ocean currents and the like, a part of giant clam seed gathering area is formed, sufficient parents are provided for giant clam breeding in the future, and technical guarantee is provided for rapid restoration of giant clam resources in the South China Sea. The method has the advantages of simplicity, convenience, feasibility, remarkable effect and the like.

Description

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Claims

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Application Information

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Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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