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CHALUT À CREVETTES POUR LA SÉLECTION DE LA CAPTURE
专利权人:
ECCO REKER HAVFRUEN AS
发明人:
AMTSEN, Dag
申请号:
NONO2016/000022
公开号:
WO2017/014641A1
申请日:
2016.07.08
申请国别(地区):
NO
年份:
2017
代理人:
摘要:
Shrimp trawl for selection of catch, wherein the shrimp trawl comprises a conical shaped net having an open end facing the tow direction of the shrimp trawl and a cod end (9) with mesh width B for catch in a second narrower end; a grid (6) with a preferably rectangular shape corresponding to the inside of the shrimp trawl when it is slanted and which comprises longitudinally extending spokes, wherein the spokes are spaced apart and in which the grid is inclined rearward from its lower part to its upper part; a hole (5) in the shrimp trawl over the grid; a first guide net (1) which is positioned some distance in front of the grid and is sewn into or attached to the trawl and inclined downward and rearward from the upper portion of the shrimp trawl at the lower part of the grid (6). The shrimp trawl further comprises the first guide net being tightened at its lower end with a resilient band (2) attached to the side wall of the trawl at the bottom, 0 to 20 cm in front of the grid and 10 to 30 cm above the bottom and the lower part of the grid; a first bottom net (4), having a larger mesh width than the trawl, inserted into an area in front of the grid (6), where the mesh has a direction substantially parallel to the longitudinal axis, a second guide net (7) positioned at the upper and rear end of the grid and inclined downward and backward toward the lower part of the shrimp trawl toward the cod end (9); and a second bottom net (8), having a larger mesh width than the trawl, inserted into an area between the grid and wherein the second guide net (7) reaches the bottom of the trawl, wherein the mesh has a direction substantially parallel to the longitudinal axis of the trawl.L'invention concerne un chalut à crevettes pour la sélection de la capture, le chalut à crevettes comprenant un filet conique ayant une extrémité ouverte faisant face à la direction de remorquage du chalut et une partie cul de chalut (9) avec une largeur de maille B pour la capture dans une seconde
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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