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A rut-type environment-friendly fishing device for aquatic benthic animals

An environmentally friendly, benthic technology, applied in fishing, application, animal husbandry, etc., can solve the problems of small environmental damage, high energy consumption, low energy consumption, etc., achieve strong tolerance, reduce interference and damage , the effect of improving the survival rate

Active Publication Date: 2021-10-22
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the disadvantages of the conventional physical disturbing method in the existing fishing methods of benthic animals, such as the destruction of the benthic ecological environment, high energy consumption, and the quality of the caught objects, etc., and proposes a new type of environmentally friendly fishing method. The method of disturbing and repelling benthic animals, that is, the use of non-direct contact electric stimulation and disturbing fishing devices, has the advantages of small environmental damage and low energy consumption, and is suitable for fishing operations of aquatic benthic animals with athletic ability

Method used

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  • A rut-type environment-friendly fishing device for aquatic benthic animals

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Effect test

Embodiment 1

[0033] Implementation example 1, use this fishing device to catch benthic scallops.

[0034] Bottom-seeded scallops are mainly cultivated in a certain sea area. After pre-experimental monitoring, the DC pulse electric field conditions of commercial-sized scallops with a shell height of more than 8 cm can be disturbed as follows: voltage 0.1-15 volts / cm, pulse width 5-500 Milliseconds, frequency 1-55 Hz, working distance 8-15 cm. Under the action of the aforementioned disturbing electric field, the escape distance of the commodity specification Ezo scallop in this sea area is 8-16 cm, the escape velocity is 0.2-0.5 m / s, and the escape height is 7-12 cm. According to the accompanying drawings of the patent description of the present invention, a type of rutting type scallop fishing device is designed, and its driving rut 6 adopts a wheel type, and the diameter of the driving wheel is 6 centimeters. The system 12 is encapsulated inside the half-fishing boat, with a pressure-resi...

Embodiment 2

[0035] Implementation example 2, using this fishing device to catch benthic prawns.

[0036] There are a large number of buried prawn resources in the bottom of a certain sea area, and a small amount of fresh and alive prawns of this type are captured for pre-experimental determination. The conditions of the DC pulse electric field that can startle shrimp with a body length of more than 10 cm are as follows: voltage 0.01-2.50 volts / cm, pulse width 0.2-40 milliseconds, frequency 1-30 Hz, and action distance 9-20 cm. Under the action of the aforementioned disturbing electric field, the escape distance of the commodity specification prawns in this sea area is 20-60 centimeters, the escape velocity is 0.6-1.0 m / s, and the escape height is 25-50 centimeters. According to the accompanying drawings of the patent description of the present invention, a type of rut-type buried prawn fishing device is designed. The rut 6 adopts the sled type, and the height of the sled side skirt is 8 c...

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Abstract

A rut-type environment-friendly fishing device for aquatic benthic animals. The front part is a fishing semi-boat with ruts on both sides, the rear part is a collection bag net and a drop-shaped float, the middle of the bow nose is a towing position, and the cable Accompanied by towing cable laying. Its internal packaging attitude and depth sensing system and control system, the center of the front of the lower shell is an inert grid-shaped electrode, followed by an arc-shaped dome slope leading to the collection bag net. After optimization, it has the characteristics of a tumbler. The upper and lower shell surfaces are asymmetrical, and the upper shell surface is more protruding. It sinks to the bottom by itself but has a tendency to float up during movement. It is approximately suspended above the bottom of the water during fishing operations. The electric field conditions and escape parameters that force the target animal to escape are determined in advance, and the upper computer is input into the control system to generate a specific disturbing electric field, forcing the target benthos to be startled and fall into the collection bag net to be captured. When the present invention operates, it has minimal direct interaction with the bottom of the water, does not damage the benthic ecological environment, is green and environmentally friendly, and is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the field of engineering equipment and technology for fishing aquatic products, and relates to a rut-type environment-friendly fishing device for aquatic benthic animals. Background technique [0002] Many kinds of aquatic benthic animals have high edible value and economic value, such as river clams, benthic crustaceans, various clams, scallops and so on. People have a long history of catching and eating such animals, and there have been records of eating benthic shellfish since the beginning of primitive society. But for thousands of years, the principle and process of people fishing for benthic animals have not been greatly innovated and improved, basically they are trying to separate the target animals from the bottom of the water and catch them. The benthic economic animals in water areas can be roughly divided into two categories, those with athletic ability and those without good athletic ability. For benthic animals w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K79/02
CPCA01K79/02
Inventor 游奎吴美仪于忠鑫刘懿萱马彩华孙守林王振宇张芳董婧刘心田王绍军韩方鑫刘永飞徐华徐铮王宇然谭鑫桢
Owner DALIAN UNIV OF TECH