Polyculture method of ulva lactuca and hybrid abalone

Abstract

The invention relates to a polyculture method of ulva lactuca and hybrid abalone. The density of the hybrid abalone is 400 per pond, the density of the ulva lactuca is 40.21g / 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 net 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 algae. According to the invention, the polyculture method of the common large-scale algae ulva lactuca 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 on 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 biology, and particularly relates to a method for polyculture of hybrid abalone and Ulva. Background technique [0002] With the continuous expansion of the scale and intensive degree of abalone breeding in my country, the feeding, excretion and residual bait of abalone lead to the breeding of pathogens and the deterioration of the breeding environment, which has an impact on the ecological environment of the shallow sea. In response to this problem, scholars at home and abroad have proposed to use macroalgae for bioremediation of sea areas. Large seaweeds have certain advantages as biofilters. 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, it generates oxygen, adjusts the pH value of the water body, and achieves ecological regulation and bioremediation of the aquaculture environment. In add...

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, stocking density, inter-species relationship, and the role and impact of breeding organisms on the ecological environment of farming waters.