Green pollution-free culture method for stichopus japonicus, penaeus japonicus, portunus trituberculatus and ulva lactuca

Abstract

The invention discloses a green pollution-free culture method for stichopus japonicus, penaeus japonicus, portunus trituberculatus and ulva lactuca, and belongs to the technical field of mariculture.The green pollution-free culture method comprises the following steps of preparing a pond and laying stichopus japonicus substratum at the beginning of March; at the beginning of April, putting stichopus japonicus seedlings, and then culturing ulva lactuca seedlings; putting penaeus japonicus seedlings in the middle ten days of April; putting young portunus trituberculatus at the beginning of May;in the middle ten days of July, harvesting the penaeus japonicus, and putting the penaeus japonicus seedlings again; and harvesting stichopus japonicus, penaeus japonicus, portunus trituberculatus and ulva lactuca in the first ten days of November. The sea cucumbers, shrimps, crabs and algae are subjected to polyculture, the water body space can be effectively utilized, the culture production cost is reduced, and the culture yield is increased; and by adopting the method for biologically preventing and controlling harmful organisms of stichopus japonicus, the use of pesticides and fishery drugs in the breeding process and the pond cleaning process is reduced, green and healthy breeding is realized, energy is saved, and the environment is protected.

Description

technical field [0001] The invention belongs to the technical field of seawater culture, and in particular relates to a green and pollution-free culture method for japonicus, japonica, portunus trituberculatus and Ulva. Background technique [0002] Sea cucumber (Apostichopus japonicus Selenka) is a marine temperate species. In recent years, with the improvement of people's living standards and the strengthening of health awareness, the consumer market of sea cucumber has been effectively expanded, which has greatly stimulated the vigorous development of the sea cucumber breeding industry. And become the pillar industry of fishery economy in Shandong and Liaoning provinces. With the expansion of breeding scale, the sea cucumber industry mainly faces two problems: on the one hand, since 2013, the extreme high temperature and extreme weather in summer in northern my country has caused great shocks in the sea cucumber farming industry. The tolerance limit of sea cucumbers to te...

AI Technical Summary

Problems solved by technology

With the expansion of breeding scale, the sea cucumber industry mainly faces two problems: on the one hand, since 2013, the extreme high temperature and extreme weather in summer in northern my country has caused great shocks in the sea cucumber farming industry. The tolerance limit of sea cucumbers to temperature has been exceeded, and the loss of sea cucumbers in ponds has been heavy. How to help sea cucumbers survive the summer has become a bottleneck restricting the development of the industry; Pests (snails, snails, etc.) multiply in large numbers, robbing natural bait and living space, and the production of sea cucumbers is greatly reduced; a large number of pesticides such as dichlorvos are used to kill harmful organisms in sea cucumbers, which pollutes the environment and causes severe food pollution. safe question

[0005] In recent years, due to the single mode of offshore farming, the breeding space cannot be comprehensively utilized. In sea areas where sea cucumbers, portunus trituberculatus, and prawns are mainly farmed, the organic matter in the sea area has increased due to the accumulation of residual bait, feces and other organic matter, resulting in ponds. Eutrophication

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