Biological regulation technology for apostichopus japonicus aquaculture pond by macroalgae control with siganus guttatus

Abstract

The invention provides a biological regulation technology for an apostichopus japonicus aquaculture pond by macroalgae control with siganus guttatus. According to the technical scheme, the technologyis divided into two steps: Step 1: large-sized fry culture of siganus guttatus: by overwintering culture of large-sized siganus guttatus fry in a nursery workshop, the problem that the size of siganusguttatus fry in the biological regulation of a pond is small and has weak algae density control ability and a narrow proper temperature range is solved, and survival rate and size of the siganus guttatus fry are increased; and Step 2: putting of the siganus guttatus: a proper size of siganus guttatus is selected and put into the pond according to the types and density of macroalgae in the apostichopus japonicas aquaculture pond. The invention has the following beneficial effects: by putting siganus guttatus into the Apostichopus japonicas aquaculture pond to establish a biologic chain of theapostichopus japonicas aquaculture pond, an ecological balance system is perfectly established, the number of macroalgae in the apostichopus japonicas aquaculture pond is rapidly and effectively controlled, and the effect of regulating water quality and building a proper growth environment for apostichopus japonicas is achieved; and water layers of the apostichopus japonicas aquaculture pond is effectively utilized for polyculture of apostichopus japonicas pond culture, and a new economic growth point is brought.

Description

technical field [0001] The invention relates to the technical field of sea cucumber culture environment restoration, in particular to the biological control technology of sea cucumber culture for controlling large algae by the fish in the basket. Background technique [0002] The sea cucumber aquaculture industry in the Yellow River Delta region has developed rapidly, and the aquaculture area has continued to expand. At present, the pond aquaculture area has exceeded 300,000 mu. However, the reduction of sea cucumber production due to high temperature and rainy weather in summer has always been a major problem in the sea cucumber farming industry in our city. The continuous high temperature and rainy weather in the summer of 2013 caused rapid corruption of large algae, weeds, and phytoplankton at the bottom of sea cucumber breeding ponds. death, ammonia nitrogen and sulfide escape in large quantities, the bottom heats up, and a temperature difference fault occurs in the bott...

AI Technical Summary

Problems solved by technology

[0004] Its technical plan is as follows: the biological control technology is divided into two steps: the first step is to cultivate large-scale seedlings of basket fish, and to cultivate large-scale seedlings of basket fish through the winter in the nursery workshop to solve the problem of small size of seedlings of basket fish in the middle of biological regulation in ponds. Control algae density is not strong, the temperature range is narrow and other problems, improve the survival rate and specifications of the basket fish fry; the second step is to put the basket fish, according to the type and density of large algae in the sea cucumber breeding pond, select the appropriate size Point baskets of fish are placed in ponds