CN102845296B

CN102845296B - Releasing method for porphyra haitanensis seedlings

Info

Publication number: CN102845296B
Application number: CN201210080529.XA
Authority: CN
Inventors: 骆其君; 谢贞优; 黄显军; 杨锐; 严小军; 周成旭; 朱艺峰
Original assignee: Ningbo University
Current assignee: Ningbo University
Priority date: 2012-03-26
Filing date: 2012-03-26
Publication date: 2014-11-05
Anticipated expiration: 2032-03-26
Also published as: CN102845296A

Abstract

The invention discloses a releasing method for porphyra haitanensis seedlings. The method includes drying lobate bodies of the porphyra haitanensis in the shade, preparing into carpospores liquid, performing inoculation into shells, growing naturally into shell filaments, and performing cultivation to a mature-stage shell filaments; and placing the mature-stage shell filaments in stone marsh in an intertidal zone with a water depth of 10-20cm after the ebb tide and in reefs in the intertidal zone one hour before the flood tide for natural release, performing broadcast sowing on the mature-stage shell filaments in a neritic region for the natural release, and suspending the mature-stage shell filaments in a mesh bag on the lower portion of a positioned float in an abyssal region for the natural release, wherein the neritic region refers to an ocean area with a water depth of 6-10m after the ebb tide, the abyssal region refers to an ocean area with a water depth larger than10m after the ebb tide, the lower portion of the positioned float is submerged for 0.5-1.5m under the water level, and the natural release continues for 2-3 years. According to the method, the germplasm of the porphyra haitanensis can be improved, natural resources of the porphyra haitanensis can be recovered, and ecological environment of the seaweed can be restored.

Description

A kind of method of releasing of Porphyra haitanensis seedling

Technical field

The present invention relates to the recovering technology of Porphyra haitanensis population, be specifically related to a kind of method of releasing of Porphyra haitanensis seedling.

Background technology

Porphyra haitanensis is nutritious, and delicious flavour is loved by the people.At present be that the small family who disperses raises scattered from numerous autotrophic mostly, Porphyra haitanensis is bred generally and at the beginning of annual 4 months, filamentous is inoculated in shell and cultivates into shell conchocelis, to the collection conchospore in September, then is bred as seedling in mariculture area to forming.Along with Porphyra haitanensis is more and more from numerous autotrophic raiser, wild Porphyra haitanensis resource is dwindled gradually, wild Porphyra haitanensis population quantity and Quality Down, and Algae Ecology environmental disruption, causes marine animal living environment to worsen, and quantity declines; And when Porphyra haitanensis is bred, for fast culture filamentous, generally cultivate water temperature and exceed 30 DEG C, cause porphyra haitanensis germ plasma to be degenerated gradually; Essentially identical environment and the breeding environment of breeding, also can affect Porphyra haitanensis adaptability and reduce, and disease resistance ability declines, and germplasm is degenerated gradually, also easily occurs oligotrophy, undergrowth.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of method of releasing of Porphyra haitanensis seedling, and the method can improve the germplasm of Porphyra haitanensis, recovers the natural resources of Porphyra haitanensis, repairs Algae Ecology environment.

The present invention solves the problems of the technologies described above adopted technical scheme: a kind of method of releasing of Porphyra haitanensis seedling, and its step is as follows:

A, screen healthy and strong Porphyra haitanensis thallus, dry in the shade, be prepared into carpospore liquid, be inoculated in shell, self-sow becomes shell conchocelis, naturally cultivates to maturing stage shell conchocelis;

B, maturing stage shell conchocelis is positioned over and in the stone natural pond, intertidal zone of depth of water 10-20 centimetre, carries out nature after ebb and release, be positioned over and in the flood tide intertidal zone cay of last hour, do not carry out nature and release, broadcast sowing and in neritic area, carry out nature and release, the bottom that packs mesh bag into and hang on bathypelagic fixed point floating thing is carried out nature and is released, described neritic area is the sea area of depth of water 6-10 rice after ebb, described abysmal area is the sea area that after ebb, the depth of water is greater than 10 meters, the bottom of described fixed point floating thing is for being immersed in 0.5-1.5 rice under water, described naturally releasing as above-mentioned placement, broadcast sowing, hang maturing stage shell conchocelis self-sow and breed, the stone natural pond, intertidal zone of depth of water 10-20 centimetre can allow Porphyra haitanensis breed and grow better, ensures the generation of more Porphyra haitanensis, is conducive to the laver repopulate in stone natural pond, intertidal zone, the flood tide intertidal zone cay of last hour is placed and can be allowed maturing stage shell conchocelis lethality reduce, and is conducive to the laver repopulate of intertidal zone cay, the bottom of bathypelagic fixed point floating thing is broadcasted sowing and hung in neritic area, is to be also conducive to neritic area and bathypelagic laver repopulate,

Naturally releasing of c, above-mentioned steps b is annual, and the 2-3 that naturally releases continuously, can ensure often to have every year the generation of Porphyra haitanensis, expands Porphyra haitanensis population quantity.

Compared with prior art, the invention has the advantages that a kind of method of releasing of Porphyra haitanensis seedling, by by Porphyra haitanensis thallus, dry in the shade, be prepared into carpospore liquid, be inoculated in shell, self-sow becomes shell conchocelis, naturally cultivates to maturing stage shell conchocelis; Again maturing stage shell conchocelis is positioned over after ebb in the stone natural pond, intertidal zone of depth of water 10-20 centimetre, in the flood tide intertidal zone cay of last hour, naturally do not release, broadcast sowing and in neritic area, carry out nature and release, pack in the mesh bag that hangs on bathypelagic fixed point floating thing bottom and naturally release, neritic area is the sea area of depth of water 6-10 rice after ebb, abysmal area is the sea area that after ebb, the depth of water is greater than 10 meters, 0.5-1.5 rice in the bottom immersion water of fixed point floating thing, 2-3 continuously naturally releases.Conchocelis breeding has been avoided high temperature like this, in the various sea areas such as stone natural pond, intertidal zone, intertidal zone cay, neritic area and abysmal area, all carry out the nature 2-3 that releases, allow Porphyra haitanensis resource recovery in various sea areas, wild Porphyra haitanensis population quantity is increased, be improved at the germplasm of various natural waters growth Porphyra haitanensis simultaneously, adaptability strengthens, disease resistance capability improving, for cultivating the germplasm that high-quality is provided, also repair Algae Ecology environment, marine animal living environment is optimized, and marine animal resource and quantity are also recovered gradually.Therefore the present invention is a kind of germplasm that can improve Porphyra haitanensis, recovers the natural resources of Porphyra haitanensis, repairs the method for releasing of the Porphyra haitanensis seedling of Algae Ecology environment.

Embodiment

Below in conjunction with embodiment, the present invention is described in further detail.

Embodiment

At the beginning of annual 4 months, choose healthy and strong wild of screening and or the Porphyra haitanensis thallus of cultivation, dry in the shade, be prepared into carpospore liquid, be inoculated in shell, in the nurturing an environment with under simulating natural condition, self-sow becomes shell conchocelis, naturally cultivates to maturing stage shell conchocelis; Maturing stage shell conchocelis is positioned over and in the stone natural pond, intertidal zone of depth of water 10-20 centimetre, carries out nature after ebb and release, be positioned over and in the flood tide intertidal zone cay of last hour, do not carry out nature and release, broadcast sowing and in neritic area, carry out nature and release, this neritic area is the sea area of depth of water 6-10 rice after ebb, pack into and in the mesh bag that hangs on bathypelagic fixed point floating thing bottom, carry out nature and release, this abysmal area is the sea area that after ebb, the depth of water is greater than 10 meters, and the bottom of this fixed point floating thing is immersed in 0.5-1.5 rice under water; Place every year, broadcast sowing, hang once, allow its natural breed and growth, naturally 2-3 continuously like this releases, generate through 2-3 Porphyra haitanensis, the basic wild Porphyra haitanensis population that recovers the various sea areas such as stone natural pond, intertidal zone, intertidal zone cay, neritic area and abysmal area, porphyra haitanensis germ plasma is also improved, and Algae Ecology environment is restored, later its nature evolution that just can allow.

Claims

1. the method for releasing of Porphyra haitanensis seedling, its step is as follows:

B, maturing stage shell conchocelis is positioned over after ebb and is naturally released in the stone natural pond, intertidal zone of depth of water 10-20 centimetre, in the flood tide intertidal zone cay of last hour, naturally release, broadcast sowing in neritic area and naturally release, packing the bottom that mesh bag hangs on bathypelagic fixed point floating thing into releases naturally, described neritic area is the sea area of depth of water 6-10 rice after ebb, described abysmal area is the sea area that after ebb, the depth of water is greater than 10 meters, 0.5-1.5 rice in the bottom immersion water of described fixed point floating thing, described naturally releasing as above-mentioned placement, broadcast sowing, hang maturing stage shell conchocelis and Porphyra haitanensis natural breed and growth,

Naturally releasing of c, above-mentioned steps b is annual, and 2-3 continuously naturally releases.