Cultivation method of porphyra in shallow water area of outer island reef sea area

Abstract

The invention discloses a cultivation method of porphyra in a shallow water area of an outer island reef sea area. The cultivation method comprises the steps of selecting a sea area, fixing equipment,erecting equipment, performing daily management and the likes. According to the cultivation method, a special device is adopted, and a support floating frame which can freely slide up and down is arranged on the vertical columns of the special device; the upper and lower ends of the support floating frame are connected with traction ropes; the lower end of the support floating frame is also connected with anchor ropes; attachments which can be attached by the porphyra are arranged between the traction ropes; the traction ropes at the lower end of the support floating frame are provided with floating bodies, and are also connected with weight blocks. The support floating frame has a buoyancy force, so that the porphyra on the attachments can be pushed out of water surface at a low tide level, thereby playing a dry dew effect. When a tide rises to a high tide level, seawater will submerge the traction ropes at the upper end of the support floating frame, thereby causing all the porphyraon the attachments to be immersed in water and stopping the dry dew. Therefore the cultivation method has the advantages that the efficient dry dew can promote weight gain, yield can be estimated during the production process, construction is simple and reliable, and management is convenient.

Description

technical field [0001] The invention relates to a method for cultivating algae in natural sea areas, in particular to a method for cultivating laver in shallow water areas of outer islands and reefs. Background technique [0002] Seaweed is rich in business, cheap and good in quality. It is called "longevity vegetable" in Japan. It is a common aquatic product that people like, and it is also one of the important marine species. [0003] Laver in the southeast coast of my country is produced in artificial breeding and wild collection. Artificial cultivation of seaweed is mainly carried out in the intertidal zone of coastal tidal flats. It is the main body of seaweed sold in the market, and the price is about 50 yuan / kg. Currently, due to the impact of the environment, the output fluctuates greatly. The wild collection of laver is mainly carried out in the intertidal zone of the outer islands and reefs. Due to the large amount of collection, the resources have been seriously ...

AI Technical Summary

Problems solved by technology

However, in order to develop seaweed cultivation in the outer islands and reefs, technical problems of facilities must be solved: firstly, the problem of dry dew of seaweed cultivation in seawater areas must be solved, and the problem of seaweed cultivation resistance against wind waves and currents, especially typhoons, must be solved

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