Method and device for cultivating porphyra haitanensis and laminaria japonica alternately in full-floating mode in shallow sea

A technology for altar laver and kelp, which is applied in the field of full-floating altar seaweed and kelp rotation in shallow seas, can solve the problems of not realizing the device and method for shallow sea full-floating altar seaweed and kelp rotation, and achieves good returns, less economic investment, and lower costs. The effect of aquaculture production costs

Active Publication Date: 2014-07-16
NINGBO UNIV
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Problems solved by technology

But there is no device and method to realize the rotation culti

Method used

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  • Method and device for cultivating porphyra haitanensis and laminaria japonica alternately in full-floating mode in shallow sea
  • Method and device for cultivating porphyra haitanensis and laminaria japonica alternately in full-floating mode in shallow sea
  • Method and device for cultivating porphyra haitanensis and laminaria japonica alternately in full-floating mode in shallow sea

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Embodiment 1

[0024] 1) Harvest seedlings and cultivation of Porphyra laver: Use free filaments or healthy vegetables to cultivate shell filaments to produce shell filaments. After cultivation, the shell filaments will fully grow and cover the entire shell ;details as follows:

[0025] 1) Cultivation of shell filaments before ripening

[0026] Select robust fronds with obvious porphyra fruit sporangia, use them as vegetables, dry them in the shade, prepare fruit spore liquid, and directly transplant the fruit spore liquid into shells;

[0027] Or use free filaments to cultivate, crush the filaments to form filament fragments with a length of 0.15-0.35mm, transplant them into shells to produce shell filaments, and cultivate them, seawater N, P The concentrations are 0.34ppm and 0.013ppm respectively, the temperature range is 15-28°C, using natural sunlight, add curtains to the top window and side windows to shading, so that the light on the surface of the shell filaments is 2000-3000Lx, in ...

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Abstract

The invention provides a method and device for cultivating porphyra haitanensis and laminaria japonica alternately in a full-floating mode in the shallow sea. The method includes the first step of seedling collection and cultivation of the porphyra haitanensis and the second step of cultivation of the laminaria japonica. According to the method, the period of nearly a mouth for temporary seedling cultivation before efficient cultivation of the porphyra haitanensis and the laminaria japonica is fully utilized and serves as a grafting buffer period, and cooperation is achieved; laminaria japonica seedlings start to be cultivated on only 10% of a seedling growing raft frame 15 days before harvest of the porphyra haitanensis is finished, the seedlings are clamped when the length ranges from 10 cm to 15 cm and are placed on a cultivation raft frame step by step till the seedlings are spread on the whole cultivation raft frame, cultivation of the laminaria japonica is completed when June comes, and in this way, about 20 days to 30 days of adjustment time can be reserved; five-to-ten-layer temporary cultivation is generally adopted in seedling emergence of the porphyra haitanensis, seedlings can emerge 20 days to 30 days later and are placed on the cultivation raft frame step by step till the seedlings are spread on the whole raft frame, and in this way, about 20 days to 30 days of adjustment time can be reserved as well. The possible problem of time conflict in alternate cultivation of the porphyra haitanensis and the laminaria japonica is solved by setting the buffer period.

Description

technical field [0001] The invention belongs to the technical field of seaweed cultivation devices, and in particular relates to a method and a device for rotation cultivation of seaweed and kelp in shallow sea full-floating altars. Background technique [0002] Kelp and seaweed are the two main economical seaweeds cultivated in my country. Both of them are essential nutritious foods for people’s daily life. They are not only high in protein, but also rich in dietary fiber and vitamins. They also contain a variety of amino acids and iodine and other mineral nutrients. disease, cancer, constipation, lower cholesterol has a good function. [0003] Due to the improvement and popularization of seaweed artificial seedling breeding technology, the rapid development of algae laver and kelp aquaculture industry has been promoted. Altar laver is naturally distributed in the intertidal zone, and artificial breeding is also carried out in the intertidal zone, using semi-floating raft c...

Claims

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Application Information

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IPC IPC(8): A01G33/00A01G33/02
Inventor 骆其君杨锐徐佳丽陈海敏严小军
Owner NINGBO UNIV
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