CN101884312A

CN101884312A - Method for preventing larva conglutination in culture of pinna pectinata larvae

Info

Publication number: CN101884312A
Application number: CN2010102218188A
Authority: CN
Inventors: 于瑞海; 马化亮; 范立强; 赵婷
Original assignee: Ocean University of China
Current assignee: Ocean University of China
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2010-11-17

Abstract

The invention discloses a method for preventing larva conglutination in the culture of pinna pectinata larvae, which is characterized in that: firstly, selecting a culture workshop which has a 20 to 30-cubic-meter pool 1.0 to 1.2 meter with a depth of 1.0 to 1.2 meters as well as an illumination intensity of 100 to 200 luxes and uses secondary sand-filtered seawater; secondly, in the culture period of the larvae, the density of the larvae is controlled to be 0.5 to 1 individual per milliliter; and thirdly, in the culture period of the larvae, culturing the larvae with flowing water for 1 to 2 hours each time, 3 to 4 times each day, continuously charging air each day, performing at least one time of bottom suction water change each day, and feeding the larvae with fresh, pollution-free, filtered and sterilized chlamydomonas bait. When the method is used, the pinna pectinata larvae can distribute in water uniformly, the number of larvae died from upward floating and conglutination is lowered, the survival rate of the pinna pectinata larvae is improved and a guarantee is provided for the industrial culture of pinna pectinata.

Description

Prevent the method for larva adhesion in a kind of comb pen shell larvae cultivation

Technical field

The present invention relates to a kind of comb pen shell grow seedlings in the larva cultured method, particularly relate to the method that prevents the larva adhesion in a kind of comb pen shell larvae cultivation.

Background technology

Comb pen shell (Pinna (Atriina) pectinataLinnaeus) is commonly called as belt, is commonly called as " sea is red ", " extra large spade " in the north.In south, Fujian claims " soil cup " " water chestnut "; Zhejiang claims " extra large freshwater mussel "; And Guangdong claims " angle belt ", " mica under-cutter "; Taiwan claims " tooth shell " etc., the shellfish that is under the jurisdiction of Mollusca (Mollusca), lamellibranchiata (Lamellibranchia), wing subclass (Pterimorphia), mussel order (Mytiloida), pen shell section (Pinnidae), pen shell genus (Pinna), at China Bohai Sea, the Huanghai Sea, the East Sea, the South Sea distribution is arranged all, North gets Liaodong Peninsula, south and Qiongzhou Strait are the very high large edible shellfishes of a kind of economic worth.Comb pen shell posterior adductor muscle is very thick, can be drying becomes " dried adductor of a pen shell ", and fine and tender taste is fertile white, nutritious, is very famous and precious seafood delights treasure, and scallop and " dried adductor of a pen shell " not only can supply the domestic market, and can export goods and earn foreign currency.In recent years because of excessively capturing the significantly minimizing that causes resource, do not satisfy the domestic and international market demand far away, urgent need is carried out the artificial breeding of comb pen shell, carry out the resource repair, the key technology of both at home and abroad comb pen shell yielding ability being grown seedlings does not also have solution fully at present, causing the unsuccessful one of the main reasons of artificial breeding is in the larva incubation, the inter-adhesive problem of larva occurs, and the adhesion problems that how to overcome in the larva incubation is the main bottleneck technology of comb pen shell artificial breeding.

Summary of the invention

The purpose of this invention is to provide the method that prevents the larva adhesion in a kind of comb pen shell larvae cultivation, it can satisfy the demand of prior art.

Prevent the method for adhesion in a kind of comb pen shell larvae cultivation, it is characterized in that at first selecting the pond size to be 20-30M ³, the dark 1.0-1.2 rice in pond, intensity of illumination is the 100-200 lux, the workshop of growing seedlings of using secondary sand filtration seawater; Secondly during larvae cultivation, the control larval density is a 0.5-1/milliliter; Flowing water is cultivated 3-4 time every day during larvae cultivation then, each 1-2 hour, and inflate incessantly every day, inhale the end every day at least and change water 1 time, throw something and feed fresh pollution-free after filtration with the unit cell algae bait of sterilizing.

By method of the present invention comb pen shell larva is evenly distributed in water, can reduce the quantity that causes larva death because of the adhesion of larva come-up, improve the survival rate of comb pen shell larva, growing seedlings for the production of comb pen shell provides guarantee.

Embodiment

When implementing to prevent the method for adhesion in the comb pen shell larvae cultivation of the present invention, at first select to be fit to the workshop of growing seedlings that the comb pen shell is grown seedlings and produces, make this pond, workshop size of growing seedlings be 20-30M ³, the dark 1.0-1.2 rice in pond, intensity of illumination is the 100-200 lux, use the seawater of handling through the secondary sand filtration is to cultivate seawater, to keep water cleaning.Secondly during larvae cultivation, the density of strict control larvae cultivation, the cultivation density that makes larva are 0.5-1/milliliter.During larvae cultivation, every day, flowing water was cultivated 4 times, and each 1-2 hour, and inflate incessantly every day, larva is distributed in equably cultivates in the water.Inhale the end at least change water 1 time every day during the larvae cultivation, throw something and feed during bait throwing in fresh, pollution-free, be bait with the unit cell algae of sterilizing after filtration, and multiple bait such as chrysophyceae, flat algae, Chaetoceros mixed throw something and feed.Can prevent larva adhesion in the comb pen shell larvae cultivation by method of the present invention.

By the inventive method enforcement, comb pen shell larva is evenly distributed in water, can prevent the adhesion in cultivation of comb pen shell larva, overcome during the larvae cultivation owing to the inter-adhesive shortcoming that causes larva death, improved the survival rate of comb pen shell larva greatly, make the high and stable yields of comb pen shell artificial breeding, growing seedlings for the production of comb pen shell provides guarantee.

Claims

1. prevent the method for adhesion in the comb pen shell larvae cultivation, it is characterized in that at first selecting the pond size to be 20-30M ³, the dark 1.0-1.2 rice in pond, intensity of illumination is the 100-200 lux, the workshop of growing seedlings of using secondary sand filtration seawater; Secondly during larvae cultivation, the control larval density is a 0.5-1/milliliter; Flowing water is cultivated 3-4 time every day during larvae cultivation then, each 1-2 hour, and inflate incessantly every day, inhale the end every day at least and change water 1 time, throw something and feed fresh pollution-free after filtration with the unit cell algae bait of sterilizing.