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Eel fry catching net capable of preventing mistaken catching

A technology for eel fry and fishing nets, which can be used in fishing, application, climate change adaptation, etc., and can solve problems such as easy accidental catch

Active Publication Date: 2022-05-31
INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that large-scale rare protected animals such as Chinese sturgeon and finless porpoise are easily accidentally caught by the stretch net in the prior art when fishing eel fry, the present invention provides a fishing net for eel fry that can prevent accidental catch, which can prevent Chinese sturgeon, Large and rare protected animals such as finless porpoise enter the net body to play a protective role, and can also prevent the natural enemies of larger eel fry from entering the net to prey

Method used

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  • Eel fry catching net capable of preventing mistaken catching
  • Eel fry catching net capable of preventing mistaken catching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown, a fishing net for eel fry that can prevent bycatch includes a net body 1 and a protection net 3, the protection net 3 covers the opening of the net, and the mesh of the protection net 3 is larger than the mesh of the net body 1.

[0025] In the above technical scheme, the net body 1 is used to catch and collect eel fry, and the protection net 3 is used to prevent large and rare protected animals such as Chinese sturgeon and finless porpoise from entering the net body 1, which plays a protective role and can also prevent large-scale The natural enemies of eel fry enter the net to prey.

Embodiment 2

[0027] like figure 1 As shown, on the basis of Embodiment 1, an inner guide net 2 is also included, and the inner guide net 2 is arranged between the protection net 3 and the tension net body 1. The inner guide net 2 is horn-shaped, and the large mouth of the inner guide net 2 Towards the protective net 3, the small mouth of the inner guide net 2 passes through the upper half of the stretch net body 1 and faces outward, the inner guide net 2 is larger than the mesh of the stretch net, and the inner guide net 2 is smaller than the mesh of the protective net 3. The guide passage in the inner guide net 2 is L-shaped, and the guide passage is arranged horizontally near one end of the protection net 3, and the guide passage is vertically arranged away from the end of the protection net 3. The horizontal section of the guide channel is suspended. The small opening size of the inner guide net 2 is greater than or equal to twice the mesh size of the outer isolation net.

[0028] The...

Embodiment 3

[0030] like figure 1 As shown, on the basis of Example 1, the stretching net body 1 is trumpet-shaped, and the stretching net body 1 gradually shrinks from the net mouth to the rear end, and the tail end of the stretching net body 1 is connected to a floating seedling collection box 4 , the described seedling collecting box 4 is provided with a trapping lamp. The light direction of the trapping lamp is towards the protection net 3 . The protective net 3 is provided with translucent refraction plates.

[0031] Said structure can lead the eel seedlings in the distance to the opening of the net, and then introduce the seedling box 4 by trapping lights. The translucent deflection plate can increase the effect of the light tube on the protection net 3, and has a better trapping effect. The light shines on the translucent refraction plate, which can not only transmit light, but also refract and reflect.

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Abstract

The eel fry fishing net comprises a net body and an inner guide net, the net body is in a horn shape, the net body is gradually shrunk from a net opening to the rear end, the inner guide net is arranged in the net body and is in a horn shape, and the direction of a large opening of the inner guide net and the direction of a large opening of the net body are consistent and overlapped. A small opening of the inner guide net penetrates through the stretching net body and faces outwards, and the inner guide net is larger than meshes of the stretching net. The invention provides a novel fishing gear for preventing and catching eel fries, which can prevent large rare protective animals such as Chinese sturgeons, cowfishes and the like from entering the stretching net body to play a role in protection, and can also prevent natural enemies of eel fries with larger volumes from entering the stretching net to prey.

Description

technical field [0001] The invention relates to the technical field of eel fry fishing, in particular to an eel fry fishing net capable of preventing miscatch. Background technique [0002] Fishing eel fry is an important source of income for some fishermen near the Yangtze River Estuary, and the stretch net is a commonly used fishing net for eel fry fishing. The net is generally trumpet-shaped and can be woven with polyethylene thread. From the network port to the rear end, it gradually shrinks, and a floating seedling collection box is connected to the tail end of the network port. The mesh of the seedling box is 50-60 mesh. The net should be fixed on the beach far away from the sluice, and the seedlings will be collected along with the tide, which can be collected during high tide and low tide. However, when the net is used to catch eel fry, it is easy to accidentally catch Chinese sturgeon, finless porpoise and other large rare and protected animals. The crisis prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K69/08A01K79/02
CPCA01K69/08A01K79/02Y02A40/81
Inventor 王燕平汤建华仲霞铭吴磊施金金熊瑛王储庆闫欣葛慧
Owner INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU