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Submerged type environment-friendly aquatic benthonic animal catching device

An environment-friendly, benthic animal technology, applied in fishing, motor vehicles, underwater ships, etc., can solve the problems of affecting the quality of the caught material, small environmental damage, high energy consumption, etc., to protect the bottom environment of the water area, Improve the survival rate, strong tolerance effect

Active Publication Date: 2020-07-14
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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  • Submerged type environment-friendly aquatic benthonic animal catching device

Examples

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Comparison scheme
Effect test

Embodiment 1

[0031] Implementation example 1, use this fishing device to catch benthic scallops.

[0032]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 submersible scallop fishing device is designed. The attitude-sensing gyroscope 5, the sounding sonar probe 6 and the control system 14 are packaged inside the fishing half-boat, and the pressure-resistant and waterproof depth is 80 meters...

Embodiment 2

[0033] Implementation example 2, using this fishing device to catch benthic prawns.

[0034] 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 submersible buried prawn fishing device is designed. The attitude gyroscope, sounding sonar probe and control system are packaged insi...

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Abstract

The invention discloses a submerged type environment-friendly aquatic benthonic animal catching device. The front part is provided with a catching half boat shaped like an inverted submarine, the backpart is provided with a collection bag net and a waterdrop-shaped buoy, a nose is a drag traction position, and a power cable is arranged along with a drag cable. An attitude and depth perception system and a control system are packaged in the device, an inert gate electrode is arranged in the center of the front part of a lower shell surface, and an arc-shaped dome slope communicates to the collection bag net. The device has the characteristics of a tumbler after being optimized; an upper shell surface and the lower shell surface are asymmetric, and the lower shell surface bulges more, so that the device is floated but has a sinking trend in motion, and the device is suspended within a certain distance on the water bottom in operation. Electric field conditions and escape parameters forforcing target animals to escape due to disturbance are pre-measured and are input to the control system by an upper computer, and then a specific disturbance electric field is generated for forcing the target benthonic animals to be roused and fall into the collection bag net to be caught. The device is not in contact with the water bottom in catching operation, so that the benthonic ecological environment is not destroyed, and the device is environment-friendly and 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 submerged 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K79/02B63B35/00B63G8/00
CPCA01K79/02B63B35/00B63G8/00
Inventor 游奎吴美仪刘懿萱于忠鑫马彩华孙守林贾子光张芳董婧刘心田王绍军韩方鑫刘永飞徐华王宇然徐铮谭鑫桢
Owner DALIAN UNIV OF TECH