Sewage suction device for pseudosciaene crocea fry breeding pond

Abstract

The invention relates to the technical field of sewage suction of pseudosciaene crocea fry breeding ponds, in particular to a sewage suction device for a pseudosciaene crocea fry breeding pond. The sewage suction device comprises a sewage suction device main body, a sewage discharge hose, an adjusting telescopic inner rod, a sleeving outer rod, a suction pump and a cleaning sewage suction head, wherein a power plug wire is arranged at the lower end of the periphery of the sewage suction device main body; a sewage discharge connecting pipe is installed at the upper end of the periphery of the sewage suction device main body, the sewage discharge hose is installed at the top end of the sewage discharge connecting pipe, a sewage discharge liquid outlet pipe opening is formed in the top end ofthe sewage discharge hose, and the adjusting telescopic inner rod is installed at the top end of the sewage suction device body. The device is simple in structure and convenient to use, is suitable for handheld sewage suction and cleaning of culture ponds with different depths, and convenient to clean bait and feces at the bottom of the ponds and synchronously suck sewage; and the device can repel pseudosciaene crocea fry with sound so as to prevent normal fry from being sucked out together with dead fish, bait and feces. The device is high in stability and practicability and has a certain popularization value.

Description

technical field [0001] The invention relates to the technical field of sewage suction for large yellow croaker seed cultivation ponds, in particular to a sewage suction device for large yellow croaker seed cultivation ponds. Background technique [0002] Large yellow croaker (Larimichthys crocea) is one of the most important marine economic fishes in my country. It is distributed in the coastal waters from the south of the Shandong Peninsula in the Yellow Sea through the East China Sea, the Taiwan Strait to the east of the Leizhou Peninsula in the South China Sea. In the early 1980s, due to the annihilating round-up of "motorized large seine nets", the resources of large yellow croakers began to decline sharply, resulting in no fishing season. By the end of the 1980s and the beginning of the 1990s, the resources of large yellow croaker had declined to a rather low level. In 1985, the relevant departments of Fujian Province of my country set up a project "Research on Artific...

AI Technical Summary

Problems solved by technology

The existing sewage suction device for large yellow croaker seedling cultivation ponds does not have the feature of preventing normal fry from being sucked out, and it is easy to suck out normal fry together with dead fish, bait and feces, etc. At the same time, it cannot be flexibly adjusted and used at different depths. The cultivation pond is cleaned and used by hand-held suction suction, therefore, a kind of sewage suction device for large yellow croaker seed cultivation pond is needed to solve the above-mentioned problems

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