Method for improving adhesion rate of juvenile mytilus coruscus

A technology of thick-shelled mussels and attachment rate, which is applied in the fields of botany equipment and methods, climate change adaptation, horticulture, etc., and can solve the problem of low attachment rate of thick-shelled mussels juveniles

Active Publication Date: 2021-07-06
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to solve the problem of the low attachment rate of the existing thick-shelled mussel spat on the attachment base, and provides a method for improving the adhesion of thick-shelled mussel spat. The method has the advantages of simple steps, convenient operation, easy control of culture conditions, and can effectively improve the attachment rate of thick-shelled mussel juveniles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Obtain algae species

[0031]Select the attachment base with thick-shelled mussel juveniles (reefs in the Saddle Islands) near the natural islands and reefs. Observed under the microscope, the main species is navicula (see Table 1), and the impurities on the attachment base surface are washed with sand-filtered seawater Finally, transfer to the sterilized sand-filtered seawater, brush off the benthic microalgae attached to the surface of the substrate, collect the brushed benthic microalgae, and obtain algae seeds.

[0032] Table 1 Composition of benthic microalgal communities on the reefs in Ma'an Islands

[0033] type Abundance (*10 4 cell / L)

Lemon Aspergillus 0.304 Minor var. ovale 0.481 Orthostrata nostida 0.217 Shield ovale 0.217 coffee brow 0.781 Navicula 0.694 Brachyphyllum var. 0.043 Cuneiform algae 0.043 Brachyphyton var. 0.087 Navicula 0.043 Nitzia lynum 0.477 Navicula ...

Embodiment 2

[0047] (1) Obtain algae species

[0048] Select the attachment base (reefs of Zhongjieshan Islands) with thick-shelled mussel juveniles near the natural islands and reefs. Observed under the microscope, the main species is small nitzia (see Table 2), and the surface of the attachment base is washed off with sand-filtered seawater After removing the impurities, transfer it into the sterilized sand-filtered seawater, brush off the benthic microalgae attached to the surface of the substrate, collect the brushed benthic microalgae, and obtain algae seeds.

[0049] Table 2 Composition of benthic microalgal communities on the reefs of Zhongjieshan Islands

[0050] type Abundance (*10 4 cell / L)

Lemon Aspergillus 0.176 Nitzschia constricta 1.670 coffee brow 0.510 Minor var. ovale 0.721 Cocoonella 0.018 Navicula multiclad 0.211 Brachyphyllum var. 0.088 Shield ovale 0.088 Nitzia lynum 0.870 Nitzschia crescentus ...

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Abstract

The invention discloses a method for increasing the adhesion rate of juvenile mytilus coruscus. The method for increasing the adhesion rate of the juvenile mytilus coruscus mainly comprises the following steps of (1) obtaining algae species; (2) carrying out primary culture; (3) treating a substratum with benthic diatom; (4) carrying out large-scale culture; and (5) carrying out seedling throwing and seedling raising. The method for increasing the adhesion rate of the juvenile mytilus coruscus is simple in step and convenient to operate, culture conditions are easy to control, after proper algae species (algae species) are selected for culture, a polyethylene film is treated, a layer of firm microbial film capable of inducing attachment of mytilus coruscus planktonic larvae is formed on the surface of the polyethylene film, and the seedling culture conditions are strictly controlled, so that the adhesion rate of the juvenile mytilus coruscus is effectively increased, and a theoretical and practical basis is provided for seedling culture of the mytilus coruscus.

Description

technical field [0001] The invention relates to the technical field of mussel culture, in particular to a method for improving the attachment rate of mussel juveniles. Background technique [0002] thick-shelled mussels ( Mytilus coruscus ) is a common aquatic economic shellfish in my country, belonging to the phylum Mollusca, class Bivalvia, order Mytilodia, family Mytilidae, and is distributed in the coastal areas of my country. The developmental stages of mussels include fertilized egg, mulberry stage, blastula stage, trochophore larvae, D-shaped larvae, shell top larvae, creeping larvae, etc. There is a planktonic larval stage before becoming an attached adult, and planktonic larvae attach On the substrate, metamorphosis becomes spat. [0003] The study found that the attachment of planktonic larvae of the thick-shelled mussel was related to the biological characteristics of the microbial film, the attachment base and other factors. However, at present, in the process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/54A01G33/00
CPCA01K61/54A01G33/00Y02A40/80Y02A40/81
Inventor 李振华周永东朱文斌徐开达卢占辉
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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