System for capturing Asian carps

Abstract

The invention discloses a system for capturing Asian carps. The system comprises a tugboat, an acousto-optic generator arranged at the tail of the tugboat, and a floating fishing bed arranged at the rear of the tugboat, wherein sound and light production of the acousto-optic generator is controlled through an acousto-optic controller; the floating fishing bed is connected with the tugboat through a traction mooring rope; a sound barrier device is arranged at the front part of the floating fishing bed and is used for reflecting sound and light generated by the acousto-optic generator; during the proceeding process of the tugboat, the acousto-optic generator arranged at the tail of the tugboat is adopted to simulate sound and light rays of nature having a stimulation effect on different fish varieties of Asian Cyprinidae so as to stimulate the Asian carps in water, so that the Asian carps jump out of the water surface, naturally fall on the floating fishing bed on the condition that the floating fishing bed moves in a cooperative manner, and then are captured. According to the invention, the biological attributes of the fish varieties of Asian Cyprinidae are utilized to manually simulate sound and light illumination so as to induce the fish varieties of Asian Cyprinidae to jump out of the water surface in groups and be captured in batches, so that the ecological treatment effect of restraining biological invasion is realized.

Description

technical field [0001] The invention is an application technology of ecological ethnology for controlling biological pollution, relates to the technical field of fishing, in particular relates to a system for catching Asian carp. Background technique [0002] With the acceleration of the globalization process, Asian carp, including herring, carp, silver carp, grass carp, and bighead carp, were brought to North America intentionally or unintentionally by humans, and rapidly multiplied in the Mississippi River Basin, forming a huge biological population. Native fish species and related aquatic animals and plants pose a threat to the survival of the local aquatic ecosystem and cause great economic losses to the local fishery production. So much so that in early 2014, U.S. President Barack Obama had to make a resolution to allocate a huge sum of 17 billion U.S. dollars to deal with the invasion of Asian carps to North American freshwater waters. However, to date, relevant copin...

AI Technical Summary

Problems solved by technology

However, similar techniques are difficult to make accurate distinctions between fish species and fish size

It is only limited to improving economic benefits, and it is impossible to achieve the ecological management goal of eliminating specific fish species

[0004] At the same time, traditional fishing with nets has three major defects: 1. Fishing with nets is not targeted. In the process of fishing, it will also hurt native fish species, and the effect of effectively eradicating invasive fish species cannot be achieved; 2. Fishing with nets Not only is it difficult to distinguish big fish from small fish, but it is also not clean enough to achieve the effect of ecological protection; 3. The fishing effect of fishing nets is opportunistic and local, and it is also impossible to fish continuously along the river, and it is difficult to achieve carpet cleaning

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