Macroscopic algae seedling indoor culturing method and device

Abstract

The invention relates to an alga culturing method and a device. In order to quicken the growing speed of large alga seedlings and reducing the working load of culturing workers, the invention provides a large alga seedling indoor culturing method and a device, which is mainly characterized by shearing a rope-form attaching base containing the seedlings of large alga like Sargassum thunbergii or gracilaria alga of 0.2 to 0.3mm into a plurality of small pieces about 0.5 to 0.8mm and throwing the small pieces into a light transmission container which is provided with a culturing liquid with a suitable growing temperature thereof with enough illumination; the culturing liquid enters from the lower part of the container, passes through a filter screen at the upper part of the container and then flows out from a water outlet tube; air is fed into the container, divided into a plurality of small air bladders by air dispersing stones and is exhausted out of the container by an air outlet; and the shearing pieces turn over, drift and circulate in the culturing liquid under the effect of the small air bladders. After 25 days, the seedlings grow to more than 10mm, then water and air supply are stopped and the upper cover of the container is opened for taking out the grown seedlings.

Description

technical field [0001] The invention relates to a cultivation method and equipment for algae. Background technique [0002] The current breeding method for macroalgae seedlings is to put several rope-like attachment bases into water containing macroalgae spores, and after several days, a layer of macroalgae spores will be attached to the surface of the attachment bases, until the spores grow into 0.2-0.3 mm seedlings. When seeding, put it into a large algae breeding site in the shallow sea and fix the attachment base and float in the water. Workers spray water on the attachment base every day to clean up the attachments on the attachment base that affect the growth of seedlings. After 35-40 days, When the seedlings on the rope-like attachment base grow to more than 10 mm, the rope-like attachment base is recovered and the seedlings on it are sandwiched between the braided strands of the rope, and then put back into shallow sea farms for cultivation. The shortcoming of the c...

AI Technical Summary

Problems solved by technology

The shortcoming of the culture method of above-mentioned known technology is, because the seedlings of macroalgae are cultivated mostly in shallow sea, be subjected to seasonal influence greatly; The growth of seedlings; Third, the seedlings under the rope-like attachment base receive too little light, which affects their photosynthesis

Based on the above, the growth rate of macroalgae seedlings has been greatly affected, and its harvest rate is also low, especially the cultivation of Sargassum and Gracilaria seedlings that require high growth conditions is more difficult; in addition, in order to facilitate the cultivation of seedlings in shallow seas growth, workers need to use water spray or other methods to remove the floating objects attached to the rope-like attachment base every day. This work is very hard and the labor cost is too high

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