Device and method for inducing clustering of thamnaconus modestus juvenile fish by using low light and feeding and pond reversing

Abstract

The invention belongs to the technical field of aquaculture breeding, and particularly relates to a device and method for inducing clustering of thamnaconus modestus juvenile fish by using low light and feeding and pond reversing. The device comprises breeding ponds, a structural framework, a control system and an actuator; the breeding ponds comprise a high-water-level fishpond and a low-water-level fishpond, and the high-water-level fishpond is connected with the low-water-level fishpond through a siphon; the structural framework is arranged between the high-water-level fishpond and the low-water-level fishpond and comprises a fixing rack, a bait feeding device and a feed luring lamp, and the bait feeding device and the feed luring lamp are fixed to the fixing rack through a horizontal supporting bar; the control system is connected with the actuator, and the control system controls the actuator to execute relevant operations. According to the device and method for inducing clustering of the thamnaconus modestus juvenile fish by using the low light and feeding and pond reversing, by transforming lighting devices in a breeding workshop and in the context that daily breeding management is met, the bait use ratio of the thamnaconus modestus juvenile fish is increased, and the survival rate of young fry is increased; physical harm of pond reversing on juvenile fish can be effectively reduced, the production efficiency is improved, and the breeding cost is saved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture and breeding, and in particular relates to a device and method for group feeding and tank dumping of young green finfish induced by weak light. Background technique [0002] Greenfin horse-faced fish, bony fish steel, single horned fish, common name rubber fish, skinned fish, pig fish, cobbler fish. Distributed in China, North Korea and Japan, it is a warm-temperate bottom sea fish, inhabiting sea areas with a water depth of 50-120 meters. It likes clusters, and has obvious diurnal vertical movement during the wintering and spawning periods. It floats during the day and sinks at night, and the diurnal vertical movement is not significant during the feeding period. The diet is mixed, mainly plankton, molluscs, corals, fish eggs and so on. The body is flat left and right, covered with hard and fine scales, forming a tough skin like tanned leather, the mouth is as small as other pufferfish, the...

AI Technical Summary

Problems solved by technology

[0003] The existing fish fry feeding techniques include manual sprinkling and mechanical timing and fixed-point feeding, but the bait sedimentation and long feeding time of the fry during the feeding process result in low feeding efficiency, and some fry fail to feed, which eventually leads to individual weakness or death of the fry

[0004] At the same time, the existing pond pouring technology is limited to traditional net fishing or water basin pouring, which will cause mechanical damage to fry during the pouring process, and the work efficiency is low

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