Mangrove forest crab co-culture ecological cultivation device

Abstract

The invention discloses a mangrove forest crab co-culture ecological cultivation device. The mangrove forest crab co-culture ecological cultivation device comprises a pond bottom layer, pond embankments are arranged on the two sides of the pond bottom layer, a plurality of nursery stock foundation beds are arranged on the pond bottom layer, auxiliary ditches are formed between every two adjacent nursery stock foundation beds, main ditches are formed between the nursery stock foundation beds located on the two sides and the pond embankments, and water inlets and outlets are formed in the positions, close to one sides, of inner cavities of the pond embankments. According to the mangrove forest crab co-culture ecological cultivation device, a circulating water system is constructed in the mangrove nursery stock cultivation space of the pond suitable for forestation to breed blue crabs by utilizing the benthic living habit of the blue crabs in mangrove forest wetland mud flat and the caving defense characteristic, and the nursery stock spacing and root systems are used as a place for inhabiting and caving the blue crabs, so that the green crabs can be cultivated in the mangrove nursery stock cultivation space of the pond suitable for forestation; the activity space of the blue crabs is increased, the defense capability is improved, and the killing of individual competitive feeding and inhabiting space competition is reduced; and meanwhile, the predation of water birds can be reduced, meanwhile, eutrophication bottom mud and breeding tail water caused by material input in the blue crab breeding period provide nutrition for nursery stock growth, and a mangrove nursery stock production and blue crab breeding co-culture ecological breeding system is formed.

Description

technical field [0001] The invention relates to the technical field of mangrove seedling cultivation and mud crab cultivation, in particular to a mangrove crab cooperative ecological cultivation device. Background technique [0002] The quality of blue crab seedlings and the guarantee of habitat space determine the breeding effect. At present, blue crab breeding is mainly based on small-sized bean crab seedlings of 0.3-0.5cm. Due to small individuals and weak mobility, the feeding ability and enemy defense ability in the pond are poor, and the bait competition and habitat space are relatively poor. The mutual killing of competition, the attack of waterfowl and other enemies, etc., have a significant impact on breeding, and the survival rate of breeding is generally only about 10%. Traditional methods such as hanging mesh and pipe fittings to increase habitat space and fences to prevent birds are used in pond cultivation. The effect is limited. During the breeding process o...

AI Technical Summary

Problems solved by technology

At present, blue crab breeding is mainly based on small-sized bean crab seedlings of 0.3-0.5cm. Due to the small size and weak mobility, the feeding ability and enemy defense ability in the pond are poor, and the bait competition and habitat space are relatively poor. The mutual slaughter of competition, the attack of waterfowl and other enemies, etc., have a significant impact on breeding, and the survival rate of breeding is generally only about 10%. Traditional methods such as hanging mesh and pipe fittings to increase habitat space and seine to prevent birds are used in pond cultivation. limited effect

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