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A non-destructive fish suction device for seine culture in large-area waters

A large-area, water-based technology, applied in fish farming, fishing, climate change adaptation, etc., can solve the problem of stocking fish fry of different specifications at the same time, and achieve the effect of simple structure, high sustainability and convenient operation

Active Publication Date: 2021-01-05
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Special attention should also be paid to the fact that different sizes of fish fry may be stocked at the same time or intermittently released in seine culture, and fish size classification needs to be considered when trapping

Method used

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  • A non-destructive fish suction device for seine culture in large-area waters
  • A non-destructive fish suction device for seine culture in large-area waters
  • A non-destructive fish suction device for seine culture in large-area waters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]Such asFigure 1-8As shown, the solution adopted by the present invention to achieve the above objective is: a large-area water purse seine culture non-destructive fish sucking device, comprising a fish sucking pipe 11, one end of the fish sucking pipe 11 is connected to an inverted funnel 12, and the other end of the fish sucking pipe 11 There is a small impeller 9 inside. An oblique filter screen 10 is installed in front of the small impeller 9. Below the filter screen 10 is a buffer device 8 communicating with the fish-sucking pipe 11. The lower end of the buffer device 8 is provided with drainage ports 4 and The middle surface of the fish discharge port 6 and the buffer device 8 is spherical, and a large impeller 7 is arranged inside. A screen 5 inclined to the fish discharge port 6 is arranged under the large impeller 7 and a grading temporary culture tank 1 is provided under the fish discharge port 6. One end of the fish suction pipe is equipped with a connecting inverted...

Embodiment 2

[0034]Such asPicture 9 As shown, the optimized solution of this embodiment on the basis of embodiment 1 is: a catching groove 37 is provided on the fishing tube 11, a buckle 36 is sleeved on the catching groove 37, and the surface of the buckle 36 passes through the fixing rope 32 and the inverted funnel. 12 The outside of the fishing net frame 3 is connected, the surface of the fishing net frame 3 is provided with a fishing net 34 with a fish inlet 35, and the fishing net frame 3 is provided with a partition 33 evenly distributed and connected to the surface of the fishing pipe 11 . By setting a slot on the fishing pipe, the slot is covered with a buckle, and the surface of the buckle is connected with a fishing net frame outside the inverted funnel through a fixed rope, so that the fishing net frame can suck fish around under the action of water current The pipe rotates, and the surface of the fishing net frame is equipped with a fishing net with a fish inlet, so that the external...

Embodiment 3

[0038]The working principle of the non-destructive fish sucking device for large-area water purse seine culture of the present invention is as follows: first connect the fishing net frame 3 to the fish suction pipe 11, and sink into the water through the fish suction pipe 11, and start the intelligent feeding system 13 The designated water area is used for intelligent bait feeding to collect fish. The small impeller 9 is activated to rotate the small impeller 9 to provide pumping power and generate water flow, so that the fish will pass through the inverted funnel 12 downstream pipes to improve the catching efficiency. The middle surface of the buffer device 8 is spherical. , And a large impeller 7 is installed inside, so that the large impeller 7 guides the fish and water bodies in the buffer zone 8, and slowly enters the grading holding tank 1 by its own gravity, preventing the fish from being injured, and realizing the sustainable fish school without damage. For catching, under t...

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PUM

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Abstract

The invention discloses a nondestructive fish suction device for enclosed netting culture in a large water area. The device comprises a fish suction pipe, wherein one end of the fish suction pipe is connected with an inverted funnel, a small impeller is arranged in the other end of the fish suction pipe, a filter screen is obliquely arranged in front of the small impeller, a buffer device communicated with the fish suction pipe is arranged below the filter screen, the two sides of the lower end of the buffer device are provided with a water outlet and a fish discharging port respectively, thesurface of the middle of the buffer device is spherical, a large impeller is arranged in the buffer device, a screen inclined toward the fish discharging port is arranged below the large impeller, anda grading temporary culture pond is arranged below the fish discharging port. A double-impeller design is adopted, one impeller mainly provides water pumping power, the other impeller mainly plays arole in expelling fishes, and the two impellers are combined with each other to achieve efficient and high-quality fish catching during enclosed netting culture. The large impeller slowly rotates in abuffer area to guide a crow of fishes into the temporary culture pond, the fishes are prevented from being hurt, and nondestructive catching of the fishes can be sustainably achieved. The device hasthe advantages of being simple in structure, convenient to operate and suitable for large-scale popularization.

Description

Technical field[0001]The invention relates to the technical field of aquatic products, in particular to a large-area water purse seine culture non-destructive fish sucking device.Background technique[0002]At present, the seine aquaculture project urgently needs to focus on the development of fast and efficient fishing methods and devices under the condition of large-area water purse seine aquaculture, so that it has high safety performance, is suitable for large-area purse seine aquaculture in shallow seas, and can greatly save cost Cost, shallow sea seine culture area is large, there is no net at the bottom, and the culture environment is closer to the natural ecology, but the feeding and catching methods of cultured fish are different from traditional cage culture, coastal seine culture and marine fishing. Therefore, it is necessary to carry out the research and development of special trapping facilities for deep-water purse seine aquaculture, including acousto-optic trapping tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/60A01K79/00
CPCA01K79/00A01K61/60Y02A40/81
Inventor 桂福坤潘昀王萍冯德军孙孟
Owner ZHEJIANG OCEAN UNIV