Specification-divided deepwater live fish automatic catching device

Abstract

The invention discloses a specification-divided deepwater live fish automatic catching device, which comprises a fish collecting box (1) and a fish luring bait feeding mechanism, and a fish inlet (5) and a fish outlet (6) are formed in the two opposite side surfaces of the fish collecting box (1) respectively; the device is characterized by further comprising a control system, a sealable fish inlet grating assembly is arranged in the fish inlet (5), and a sealable fish outlet grating assembly is arranged in the fish outlet (6); and the control system controls opening and closing of the fish inlet grating assembly and controls opening and closing of the fish outlet grating assembly. The fish automatic catching device can achieve the standard fish catching effect of catching large fishes and reserving small fishes, and the defect that large fishes and small fishes are caught together to cause fry waste is overcome.

Description

technical field [0001] The invention relates to an automatic catching device for deep-water live fish with different specifications, which belongs to the field of marine breeding equipment. Background technique [0002] With the acceleration of my country's modernization and urbanization process, my country's offshore aquaculture is facing a series of problems such as space shrinkage, environmental pollution, and ecological degradation. Mariculture has become an important way to ensure the sustainable development of the mariculture industry from the near shore to the deep sea. , has also become a worldwide consensus. In recent years, with the completion and commissioning of large-scale steel structure offshore cages such as "Shenlan No. 1", "Dehai No. 1", and "Zhenyu No. 1", my country's deep-sea fish farming has begun to take shape. Moreover, in the foreseeable future, the scale of deep sea fish farming will develop rapidly. [0003] The water body of deep-sea fish culture ...

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Problems solved by technology

[0004] The shortcoming of this method is that, first of all, the whole box of fish needs to be concentrated each time fishing, because the density is too high, it is easy to cause scratches and hypoxia of the fish, and even death, repeated batches of fishing for many times will affect the quality of the untreated fish. The fish caught is very harmful, which is not conducive to the follow-up breeding after fishing; secondly, this method captures large fish and small fish together, which cannot realize the sub-standard fishing of large and small fish, resulting in waste of farmed fish seedlings; finally, this This method is cumbersome to operate, and the cost of labor and electricity is high, which increases production costs and reduces production efficiency

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