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Method for sponges to release larvae in a concentrated manner by light induction

A sponge and larval technology, applied in fish farming, application, climate change adaptation, etc., can solve the problem of unclear immune mechanism, and achieve the effect of simple operation and high efficiency

Inactive Publication Date: 2015-11-04
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sponges have no mesoderm and no differentiation of tissues and organs, and the immune mechanism is not yet clear

Method used

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Examples

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Embodiment Construction

[0025] The following examples will further illustrate the present invention.

[0026] The present invention comprises the following steps:

[0027] 1) In the natural sea area, select the adult sponges attached to the ropes or fishing nets used for cultivation;

[0028] 2) Cut a small opening of 2 to 3 cm near the water outlet hole of the sponge animal, and observe the amount of fecundity of the sponge mother body at the base of the water outlet hole;

[0029] 3) Select a sponge parent with a large embryo content and more mature development; the more mature sign of the development can be: if the sponge is a leaf mountain sponge, the embryo is lavender; if the sponge is a panting moss sponge, the embryo is bright Orange; if the sponge is of the order Osteospongos, a ring of black cilia appears on the top of the embryo;

[0030] 4) prepare a larva collection net, and the net clothing selects the screen cloth that is slightly smaller than sponge embryo diameter for use, and the ...

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Abstract

The invention provides a method for sponges to release larvae in a concentrated manner by light induction, and relates to the sponges. The method comprises steps of selecting adult sponges attached and grown on the culturing ropes or fishing nets in a natural sea area; cutting a small opening near a osculum of each sponge, and observing the brood amount of the female sponge on the base of the osculum; selecting a proper female sponge with plenty of sponge embryos which are relatively mature in growth; preparing a larva collecting net, wherein the net is made of screen meshes of which each diameter is smaller than the diameter of the sponge embryo, the larva collecting net is in a shape of a inverted bottle, the meshes of the bottleneck of the net is smaller than the rest of the net, and the opening of the bottle of the net is connected with a larva collecting pot; after the sun set, putting a covering on the above of the female sponge; removing the covering before sun rise, and sleeving the larva collecting net to the outside of the whole female sponge; after sun rise, moving the female sponge from the larva collecting net to the natural sea area to culture and wait for collecting the larvae next day; lifting the larva collecting net so that the seawater is filtered out naturally, collecting the larvae in the larva collecting pot at the bottom, taking the larva collecting pot off, and moving the larvae in an attachable culture container. The method provided by the invention is simple to operate, safe and efficient, and has no need to add extra chemical agents.

Description

technical field [0001] The invention relates to sponge animals, in particular to a method for light-induced spongy animals to discharge larvae intensively. Background technique [0002] Sponges are the simplest multicellular animals. Most of them live sedentarily in the ocean. There are two forms of single and group life, and only a small number of them live in fresh water. Sponges have no mesoderm, no differentiation of tissues and organs, and the immune mechanism is not very clear. These special structures also provide a guarantee for the symbiosis of a wide variety of microorganisms in the sponge. It is precisely because the secondary metabolites produced by these symbiotic microorganisms have become the source of precious compounds for sponges, and have also become the object of research by researchers from all over the world. [0003] Sponge is the largest source of known marine natural products due to its wide variety, wide distribution and complex and diverse second...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 王德祥张苑赵晶丁少雄
Owner XIAMEN UNIV
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