A kind of production method of jellyfish seed based on podocyte reproduction

Abstract

The invention relates to a method for producing jellyfish seedlings based on podocyst reproduction, which belongs to the field of aquaculture. The method is to prepare jellyfish polyp seedling plates, provide suitable conditions for podocyst reproduction, and promote the polyp to produce high-quality podocysts. The water temperature drops naturally and enters the overwintering cultivation stage; in spring, the low-temperature chemical induction method is used to induce the polyps to undergo transverse fissures and release the disc-shaped seedlings; after the disc-shaped bodies are released, the seedling plates with a large number of foot capsules are concentrated in the nursery pool , enter the dormant stage of podocyte conservation; in late summer and early autumn, adopt podocyte germination induction measures to promote podocyte germination, generate new polyps, and start a new seed production cycle. The present invention only obtains enough polyps through asexual reproduction to ensure the normal production of disc-shaped seedlings, avoids a large amount of investment in harvesting stings from natural sea areas every year and indoor temperature-controlled cultivation, and proposes non-low temperature dormancy of the foot capsule The conservation method makes full use of a large number of podocysts produced during the growth process of the polyps, saving seedling production costs.

Description

technical field [0001] The invention belongs to the technical field of aquaculture seed breeding, and in particular relates to a method for producing jellyfish seed based on podocyte reproduction. Background technique [0002] Jellyfish (Rhopilema esculentum Kishinouye 1891) belongs to the phylum Cnidaria, the class Jellyfish, and the genus Jellyfish. It is a large edible jellyfish with the highest economic value, and it is also one of the important marine fishery breeding targets in China. Since the 21st century, jellyfish pond culture has developed rapidly, and the research work on industrialized jellyfish breeding has also been carried out rapidly. In particular, the jellyfish breeding industry in Liaoning and Shandong provinces has developed relatively rapidly, with considerable benefits, and the output value of related industries has reached billions of yuan. [0003] Jellyfish has a typical life history of alternate generations, including the sexual generation of jelly...

AI Technical Summary

Problems solved by technology

On the one hand, the existing seed production process does not make enough use of the podocytes, wasting a large number of podocytes produced during the growth of polyps; high cost etc.

In addition, the existing podocyte preservation method is mainly to inhibit germination by artificial low temperature (such as the patent "A Method for Asexual Propagation and Breeding of Jellyfish"), which is too expensive to be used in large-scale seed production. Maintain or even increase the number of jellyfish polyps, ensure enough polyp populations are used to produce dish-shaped seedlings, and find a method for dormancy of foot capsules that does not require low temperature. In a word, the present invention has simplicity, convenience, Advantages of low cost