Polyculture method of gracilaria asiatica and hybrid abalone

Abstract

The invention relates to a polyculture method of gracilaria asiatica and hybrid abalone. The density of the hybrid abalone is 400 per pond, the density of the gracilaria asiatica is 38.13g/ m<3>, and the specification of a culture pond is 180cm x 150cm x 130cm. The hybrid abalone is a hybrid offspring of haliotis discus hannai and haliotis discus discus, the hybrid abalone is cultured by using a net cage, the specification of the net cage is 43.5cm x 33.5cm x 14 cm, 40 hybrid abalones are cultured in each cage, every five culture net cages are bundled together to form a string, and 200 hybrid abalones are contained in each string. After the culture net cages are placed into an alga cultivation pond, and two strings of abalone cages are arranged in each pond. After the hybrid abalones are cultured for one week, the algae are introduced for polyculture and suspended in the center of the pond surface by using a net cover, a certain distance is kept between the algae and the abalone cage, and the hybrid abalones are prevented from eating the cultured algae. According to the invention, the polyculture method of the common large-scale algae gracilaria asiatica in China and the hybrid abalone of the haliotis discus hannai and the haliotis discus discus is studied, the quality of water which is purified by the algae in the hybrid abalone culture pond and the influence of the growth of the hybrid abalone are researched, and a necessary scientific basis is provided for further selecting the large-scale algae to establish a novel effective abalone healthy breeding mode.

Description

technical field [0001] The invention belongs to the technical field of marine organisms, and in particular relates to a polyculture method of hybrid abalone and true Gracilaria. Background technique [0002] With the continuous expansion of the scale and intensification of abalone farming in my country, the effects of abalone's feeding, excretion and residual bait lead to the breeding of pathogens and the deterioration of the breeding environment, which has an impact on the ecological environment of shallow seas. In response to this problem, scholars at home and abroad have proposed bioremediation of sea areas with macroalgae. Macroalgae have certain advantages as biological filters. They are ecologically complementary to farmed animals and can absorb nutrients and CO released by farmed animals into the water body. 2 , at the same time produce oxygen, adjust the pH value of the water body, and achieve the ecological regulation and bioremediation of the breeding environment....

AI Technical Summary

Problems solved by technology

[0003] However, as far as the current situation is concerned, further research is needed on the collocation of breeding species, stock