Method for improving culture effects of oysters and rare seafood and application

Abstract

The invention discloses a method for improving culture effects of oysters and rare seafood and application. According to the method, after the oysters subjected to raft culture grow to certain specifications, the oysters along with seed ropes are transferred to the sea floor of a proper sea area for relay bottom sowing culture, and rare seafood reefs are built by means of the oysters subjected tobottom sowing, so that excellent inhabiting spaces are provided for the rare seafood of sea cucumbers, sea urchins and the like. Through the method, a high-temperature crowded environment of a raft culture area can be effectively avoided, so that a growth rate and the fatness of the oysters are improved; and by conducting bottom sowing on the oysters, the inhabiting spaces can be provided for therare seafood of the sea cucumbers, the sea urchins and the like, feces and pseudofeces which are generated by the oysters can be used as excellent baits of the rare seafood, thus growth and survival of the rare seafood are facilitated, a sea area environment is restored at the same time, and the rare seafood feeds on fouling organisms on oyster shells, so that the labor intensity of shell cleaningafter the oysters are harvested is reduced, and the method for improving the culture effects of the oysters and the rare seafood and application has very wide application spaces in subtropical sea areas.

Description

technical field [0001] The invention relates to the technical field of aquaculture. More specifically, it relates to a method and application for improving the breeding effect of oysters and sea treasures. Background technique [0002] Oyster is an important marine economic shellfish, which has the characteristics of delicious meat and rich nutrition. Oyster meat and shell have high medicinal value. my country's coastal oysters are extensively cultured and the output is huge. According to statistics, the total oyster output in my country in 2018 exceeded 5.1 million tons, of which the total oyster output in the subtropical provinces of Guangdong, Guangxi and Fujian was more than 3.6 million tons. Oyster farming has brought huge economic benefits to coastal areas. However, in recent years, driven by economic interests, many fishermen have neglected the farming capacity and carried out high-density and disorderly farming in some sea areas, which eventually led to a decline in...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there is polyculture of shellfish such as oysters and sea cucumbers and other sea treasures to fully utilize and transform nutrients in the water body to achieve the purpose of environmental regulation and restoration. For example, patent CN202010094142.4 provides a three-dimensional comprehensive culture of sea cucumbers and oysters The sea cucumber is cultured at the bottom of the water by bottom sowing, and the oyster is cultured in the water by hanging. The two do not touch each other and make full use of the water body and the bottom space. However, the cost of equipment investment in this method is high, and nets, ropes, etc. are required. Suspension of oysters in the water body can provide sea cucumbers with biological sediments (feces and pseudo feces) as food, but these equipment will accelerate the growth of attached organisms, which is very unfavorable for the growth of oysters, and oysters and sea cucumbers do not touch each other , not only can't improve the substrate structure, but also can't play the role of gathering sea cucumbers, which is very unfavorable for the management and harvest of sea cucumbers

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