A Weaving Method for Sampling Nets for Swimming Animals in Complicated Terrain Sea Areas
A technology for complex terrain and nets, applied in textiles and papermaking, fishing nets, woven fabrics, etc., to achieve the effect of reducing area, reducing drag resistance, and uniform force
Active Publication Date: 2015-09-23
INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU
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Problems solved by technology
[0004] The complex and changeable underwater topography has brought a series of unimaginable puzzles to the biological sampling work
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
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[0023] 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.
[0024] like Figures 1 to 3 As shown, a sampling net for swimming animals in complex terrain sea areas, the net is composed of net sleeve 1, net cover, net body 2 and net bag 3, the back sleeve, abdomen sleeve and back abdomen of the net sleeve 1 There is a longitudinal mesh-enhancing structure at the junction of the sleeves, and the three longitudinal meshes are roughly evenly arranged along the surrounding direction of the m...
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The invention relates to a net for sampling nekton in complex terrain waters and a weaving method thereof. The net comprises wings, a cover, a body and a sac. Each wing is composed of a back wing and a middle wing and is integrally woven; meshes of each wing are increased by means of a triple longitudinal structure. During weaving, one longitudinal mesh-increasing structure is woven to each of the back sleeves, the middle sleeves and intersections of the back and middle sleeves; the wings in the triple longitudinal structures are connected with the body; the connection of the body with the wings is provided with three mutually-split longitudinal intersections. Mesh size of the sac is smallest; the meshes enlarge gradually from back to front of the body; the mesh size of first segments of the wings, the cover and the body are largest. The net for sampling nekton in complex terrain waters has the advantages that the triple longitudinal structures help relieve excessively-concentrated stress of the connection of the body with the wings, the net can be stressed more evenly, and the net can adapt to complex variable terrains conveniently; escaping of organisms is prevented, and errors in scientific research are eliminated; line area of the net is reduced by taking comprehensive measures, and drag resistance is decreased while the performance is ensured.
Description
technical field [0001] The invention belongs to the technical field of single-vessel winged single-bag trawl nets, and in particular relates to a weaving method for sampling nets for swimming animals in complex terrain sea areas. Background technique [0002] Marine fishery resources are not only the material basis for the development of the fishing industry, but also an important component of the marine ecosystem. Swimming animals (including fish, shrimp, crabs, cephalopods, etc.) are the most important components of marine fishery resources. For a long time, in order to understand the status of the number of marine swimming organisms and grasp the dynamics of resource changes, my country's fishery scientific research institutions usually use trawling to collect biological samples, and use this as the basic material to carry out relevant scientific research work. [0003] The central and southern coastal areas of the Yellow Sea have a wide distribution of radiating sand rid...
Claims
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IPC IPC(8): A01K73/02D04C1/06
Inventor 仲霞铭刘培廷熊瑛汤建华
Owner INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU