Cultchless connection aquaculture method for improving economic benefit of Hong Kong oysters

Abstract

The invention discloses a cultchless connection aquaculture method for improving economic benefit of Hong Kong oysters. The cultchless connection aquaculture method for improving the economic benefit of the Hong Kong oysters includes: in autumn and winter, using flat ground resistant to sunshine, resistant to rain, and good in ventilation as a work place, selecting the cultchless Hong Kong oysters larger than or equal to 30mm in shell height as connection objects, controlling the length of each larva rope within 1.6-2.5m, arranging 8-15 adhesion points on each larva rope, setting an interval between each two adjacent adhesion points as 10-15cm, using left shells of the cultchless Hong Kong oysters as adhesion points of the cultchless Hong Kong oysters, using cement as adhesive, adhering the left shells of the cultchless Hong Kong oysters to the adhesion points of the larva ropes, and adhering 2-6 cultchless Hong Kong oysters to each adhesion point of each larva rope, and in adhesion, keeping the height direction of the oyster shells parallel to the larva ropes and the length direction of the oyster shells vertical to the larva ropes, and setting the tops of the oyster shells underneath, or keeping the height direction of the oyster shells vertical to the larva ropes and the length direction of the oyster shells parallel to the larva ropes, and then placing the larva ropes in a shade place, and finally hanging the larva ropes and the Hong Kong oysters adhered to the larva ropes on a buoyant raft or a sunken raft for cultivation after the cement is dried and hard.

Description

Technical field: [0001] The invention belongs to the technical field of shellfish culture in marine agriculture, and in particular relates to a single-unit connection culture method for improving the economic benefits of Hong Kong oysters. Background technique: [0002] Hong Kong oyster Crassostreahongkongensis is the main economic species of coastal culture in South my country. It likes to live near estuaries or places with fresh water injection. It is mainly distributed in Guangdong, Guangxi and other places. The annual output is more than 1.3 million tons, and the output value is 8-10 billion yuan. (China Fisheries Yearbook, 2013). Compared with other types of oysters, the value of Hong Kong oysters is mainly reflected in their large body, fat meat, and delicious taste. In addition, their market value is much higher than that of other types of oysters, and they are favored by consumers in Guangdong, Guangxi, Hong Kong, Macao, and Southeast Asian countries (Zhang Yuehuan, e...

AI Technical Summary

Problems solved by technology

Among them, there are some problems, the first is that if the seedling density is too high, its growth rate will be relatively slow, the breeding season and winter mortality will be high, and the breeding cycle will be long; the 2nd, if the seedling density is too low, the growth rate will be relatively fast , but the unit output is low, and the economic benefits are not ideal; third, the oysters produced by this traditional breeding method have different shapes and uneven appearance, and the unit price is relatively low