CN102090359A

CN102090359A - Artificial breeding production method of gomphina veneriformis

Info

Publication number: CN102090359A
Application number: CN2010105828208A
Authority: CN
Inventors: 张剑; 高翔凤; 王虎成
Original assignee: SHANDONG HAIYIBAO AQUATIC PRODUCTS CO Ltd
Current assignee: SHANDONG HAIYIBAO AQUATIC PRODUCTS CO Ltd
Priority date: 2010-12-10
Filing date: 2010-12-10
Publication date: 2011-06-15

Abstract

The invention relates to an artificial breeding method of gomphina veneriformis. The method comprises the following steps of: selecting a seed seashell; gradually raising the temperature to accelerate breeding; putting baits; inducing egg laying; hatching and breeding; managing seedlings; picking seedlings; performing intermediate breeding or breeding in an intertidal zone, and the like. By adopting the method, the technical bottlenecks of temperature raising breeding acceleration, artificial induction of egg laying and seedling picking of a brood stock in the aspect of artificial breeding in the prior art are overcome, and the development and the utilization of intertidal zones and the increment of new cultivating variety are facilitated.

Description

The method that the artificial breeding of a kind of equilateral shallow clam is produced

Technical field

The present invention relates to a kind of method of shellfish artificial breeding, particularly relate to a kind of method of equilateral shallow clam artificial breeding.

Background technology

Equilateral shallow clam (Gomphina (Macridiacus) veneriformis (Lamarck)) is under the jurisdiction of mollusks, lamellibranchiata, different tooth subclass, curtain clam order, Veneridae, live in the intertidal zone, inferior segment is to the beach in the silt particle in shallow sea, special chiltern seabed, China south, north is coastal all distribution.Be one of bigger shellfish of Shandong coastal waters beach economic worth, the nineties once was that littoral fisherman adopts one of main shellfish that catches, and output is big, but after entering 21st century, caught and factor such as environmental pollution owing to excessively adopt, and its resource is almost exhausted, and price skyrockets.

The research of relevant equilateral shallow clam at present both at home and abroad seldom because there is the technical bottleneck that close shellfish intensification accelerating is cultivated, the aspect is laid eggs, collected seedling to the artificial induction in equilateral shallow clam aspect the artificial breeding production, artificial breeding reaches the level that yielding ability is grown seedlings far away.Therefore, press for and carry out the research of equilateral shallow clam artificial seed raising technology, for carrying out work of equilateral shallow clam aquaculture and resource repair,, significant for the shore reclamation utilization increases new breed variety.

Summary of the invention

The purpose of this invention is to provide the method that a kind of equilateral shallow clam artificial breeding is produced, can overcome the above-mentioned shortcoming of prior art.

The method that a kind of equilateral shallow clam artificial breeding is produced, it is characterized in that: 1) adopt earlier in the distributed areas of equilateral shallow clam catch 2-3 shellfish in age, size 3-4 centimetre one-tenth shellfish as kind of a shellfish, the accelerating that heats up in the shellfish hatchery workshop after scrubbing, selecting is cultivated, constant temperature is cultivated to laying eggs after adopting the mode that heats up gradually to be raised to 23 ℃, the bait aspect adopts based on little Nitzschia closterium minutissima, tower born of the same parents algae, flat algae are that the multiple bait mixing of assisting is thrown something and fed, to strengthen the nutrition that close shellfish is cultivated; 2) the kind shellfish of artificial culture maturation is dried in the shade, heats up stimulate after, put into the seawater of handling through bleaching liquid and carry out induced spawning, lay eggs finish after, according to what of sperm spawning pond is divided into 2 ponds, 3 ponds or 4 ponds, add water behind the branch pond immediately, inflate and wash ovum, hatch cultivation afterwards; 3) with the D type larva that hatches through siphon select excellent after, routinely the method for shellfish hatchery carry out bait throwing in, change water, seedling management such as inflation cultivation; 4) reach 195 microns larva, foot is flourishing and begins settlement and metamorphosis when stretching out, adopts no substrate to collect seedling and the three-dimensional mesh bag method that combines of collecting seedling is collected seedling; Need bait throwing in this moment, change water and regularly move the pond, can go out the pond, carry out intermediate rearing then in the pond or carry out the beach aquaculture when juvenile mollusk reaches the 2-3 millimeter to guarantee the juvenile mollusk healthy growth.

Embodiment

The method that a kind of equilateral shallow clam artificial breeding is produced is characterized in that: 1) adopt in the distributed areas of equilateral shallow clam earlier and catch 2-3 shellfish in age, size is 3-4 centimetre Cheng Beiwei kind shellfish, after scrubbing, selecting in the shellfish hatchery workshop by 8-12kg/m ³Density cultivate kind of a shellfish, adopt intensification accelerating and enriched nutritive to impel kind of a shellfish maturation, constant temperature is cultivated to laying eggs after adopting 1 ℃ the heating mode gradually of heating up every day to be raised to 23 ℃, the bait aspect adopts based on little Nitzschia closterium minutissima, tower born of the same parents algae, flat algae are that the multiple bait mixing of assisting is thrown something and fed, to strengthen the nutrition that close shellfish is cultivated; 2) the kind shellfish of artificial culture maturation is dried in the shade after 1-2h, intensification 3-4 ℃ the stimulation, put into the seawater of handling through bleaching liquid and carry out induced spawning, 1-1.5h after begin to lay eggs, lay eggs and finish the back according to what of sperm, spawning pond is divided into 2 ponds, 3 ponds or 4 ponds, add water behind the branch pond immediately, inflate and wash ovum, under 23-25 ℃ temperature, hatch cultivation afterwards; 3) with the D type larva that hatches through siphon select excellent after, the density of pressing 8-12/L, routinely the method for shellfish hatchery carry out bait throwing in, change water, seedling management such as inflation cultivation; 4) reach 195 microns larva, foot is flourishing and begins settlement and metamorphosis when stretching out, adopts no substrate to collect seedling and the three-dimensional mesh bag method that combines of collecting seedling is collected seedling.Need bait throwing in this moment, change water and regularly move the pond to guarantee the juvenile mollusk healthy growth, long to time more than 350 microns be single water pipe phase juvenile mollusk, be two water pipe phase juvenile mollusks in the time of more than 450 microns, reach the 2-3 millimeter and can go out the pond and carry out intermediate rearing in the pond or carry out the beach aquaculture.

Claims

1. method that equilateral shallow clam artificial breeding is produced, it is characterized in that: 1) adopt earlier in the distributed areas of equilateral shallow clam catch 2-3 shellfish in age, size 3-4 centimetre one-tenth shellfish as kind of a shellfish, the accelerating that heats up in the shellfish hatchery workshop after scrubbing, selecting is cultivated, constant temperature is cultivated to laying eggs after adopting the mode that heats up gradually to be raised to 23 ℃, the bait aspect is based on little Nitzschia closterium minutissima, tower born of the same parents algae, flat algae are that the multiple bait mixing of assisting is thrown something and fed, to strengthen the nutrition that close shellfish is cultivated; 2) the kind shellfish of artificial culture maturation is dried in the shade, heats up stimulate after, put into the seawater of handling through bleaching liquid and carry out induced spawning, lay eggs finish after, according to what of sperm spawning pond is divided into 2 ponds, 3 ponds or 4 ponds, add water behind the branch pond immediately, inflate and wash ovum, hatch cultivation afterwards; 3) with the D type larva that hatches through siphon select excellent after, routinely the method for shellfish hatchery carry out bait throwing in, change water, seedling management such as inflation cultivation; 4) reach 195 microns larva, foot is flourishing and begins settlement and metamorphosis when stretching out, adopts no substrate to collect seedling and the three-dimensional mesh bag method that combines of collecting seedling is collected seedling; Need bait throwing in this moment, change water and regularly move the pond, can go out the pond, carry out intermediate rearing then in the pond or carry out the beach aquaculture when juvenile mollusk reaches the 2-3 millimeter to guarantee the juvenile mollusk healthy growth.