Silt tidal creek fish capturing device and quantitative fish density sampling method

A quantitative sampling and silty technology, applied in fishing, application, animal husbandry, etc., can solve problems such as inability to trawl survey, difficult access of ships, and inability to achieve quantitative sampling of fish quantity and density

Inactive Publication Date: 2015-03-25
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because muddy tidal channels are generally deep, tortuous, and sometimes very narrow in width, it is difficult for ships to enter, and trawling surveys cannot b...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Silt tidal creek fish capturing device and quantitative fish density sampling method
  • Silt tidal creek fish capturing device and quantitative fish density sampling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0030] like figure 1 and 2 As shown, a fishing device for muddy tidal creek fish includes a tidal creek fixed net bag and a sweeping net device, and the tidal creek fixed net bag includes a net bag 3, and the net bag 3 is conical, and the larger end is Opening, smaller one end has fish mouth, and described net bag 3 is horizontally installed in tidal ditch 10, and the axial direction of described net bag 3 is consistent with ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a silt tidal creek fish capturing device and a sweep net device for driving tidal creek fish. The capturing device comprises rectangular nettings, a net bag, a frame line net piece, a triangular sweep net and the like. In combination with the landform feature of a tidal creek and the rising tide feature of tides, the silt tidal creek fish capturing device and a quantitative fish density sampling method are designed. By means of the method, the total density of the silt tidal creek fish can be monitored in a quantitative mode, the density of all kinds of fish can be calculated as well, and the types of the fish entering the tidal creek and the density difference in different tidal water depths can be calculated, so that searchers can know the influence mechanism of the tidal creek on the fish habitat strategy. The silt tidal creek fish capturing device and the quantitative fish density sampling method have the advantages of being easy to operate, capable of saving cost, capable of saving labor and the like and particularly suitable for quantitative monitoring of the density of the silt tidal creek fish.

Description

technical field [0001] The invention belongs to the technical field of fish fishing in silty tidal creeks, and in particular relates to a fishing device for fish in silty tidal creeks and a quantitative sampling method for fish density. Background technique [0002] A tidal trench is an important geomorphic unit of the muddy intertidal wetland sub-habitat, and one of the most active development factors in the tidal flat habitat. One side of it starts to develop from the salt marsh, and changes direction and size continuously with the erosion of the tidal current. , when the final stable formation, the width of the tidal channel can reach more than ten meters to hundreds of meters, and the depth of the tidal channel can be as deep as 1 to 3 meters. Due to factors such as deep water depth and long tidal water retention time in tidal trenches, some fish (such as gobies) will first enter the intertidal waters for activities and large individual fishes live and forage in this wat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01K69/02
CPCA01K69/04
Inventor 张衡全为民崔雪森戴阳张胜茂杨桥杨胜龙化成君
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap