Method for repairing seaweed field by culturing shellfish-algae complex

Abstract

The invention provides a method for repairing a seaweed field by culturing a shellfish-algae complex. The method comprises the following steps of collecting wild species algae before sargassum vachellii and sargassum horneri are mature, temporarily culturing the wild species algae in an outdoor water tank, and placing an oxygenation pump for temporary culture; washing the seed algae with flowing water, collecting the sargassum horneri and sargassum vachellii juvenile sporophytes, and moving to a collecting barrel; evenly laying mytilus coruscus at the bottom of the collecting barrel, smearing spore liquid on the surface of the mytilus coruscus through a brush, slightly adding seawater along the barrel wall, and placing the oxygenation pump outdoors for the temporary culture; after growing the sargassum horneri and the sargassum vachellii to 5-10 centimeters on the surfaces of the mytilus coruscus, separating the piled mytilus coruscus one by one, and putting the shellfish-algae complex into an algae field to restore a sea area. According to the method, attachment of the juvenile sporophytes is completed in the culture pond firstly, then secondary attachment is rapidly achieved with the help of the mytilus coruscus, the influence of sediments and illumination intensity on growth of the juvenile sporophytes can be effectively avoided, and the finally-grown shellfish-algae complex can better repair the algae field repair sea area.

Description

technical field [0001] The invention relates to the restoration of seaweed fields, in particular to a method for repairing seaweed fields by cultivating shellfish complexes. Background technique [0002] Seaweed farms have high primary productivity and provide an excellent habitat and breeding place for coastal marine organisms. They are not only an important carrier for the conservation of fishery resources in coastal waters, eutrophication of sea areas and improvement of ecological environment, but also a sensitive tool for global climate warning. Sensors are an important part of the blue carbon sink in the coastal zone that cannot be ignored. However, affected by frequent human activities and global climate change, the seaweed farms near the coast of China, with Sargassum valscherii and copper algae as the main dominant algae species, are gradually declining. [0003] At present, the restoration of copper algae and Sargassum varschia seaweed farms is mainly carried out i...

AI Technical Summary

Problems solved by technology

[0005]In the process of traditional restoration of Sargassum varschia and copper algae seaweed farms, the method of removing harmful organisms often requires a lot of manpower to carry out underwater operations, and the work intensity is high. And it is accompanied by certain safety hazards; although spraying spore water can increase the growth density of young sporophytes to a certain extent by spraying a large number of zoospores and gametophytes, its attachment efficiency is still largely limited by the environment such as sea waves and sediment thickness. factors

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