File:Schéma de pêche - chalut pélagique (Ifremer 00581-69329).jpg

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Summary

Description
Français :

Un chalutier est un bateau armé pour la pêche au chalut, filet en forme de poche traîné au fond de l’eau ou près de la surface par un ou deux navire(s). Cette technique de capture est la plus utilisée au monde. Les chalutiers sont à l’origine de plus de la moitié des captures mondiales. Les chalutiers peuvent manœuvrer différents types de chaluts. Sur ce schéma, il s'agit d'un chalut pélagique, à savoir un filet remorqué qui évolue en pleine eau, entre la surface et le fond, sans être en contact avec lui. Comme pour le chalutage de fond, il existe des chaluts pélagiques simples remorqués par un seul navire et des chaluts-bœufs tractés par deux chalutiers. Le chalut pélagique est, en général, beaucoup plus grand que le chalut de fond. Sa partie antérieure est faite de simples cordages ou de très grandes mailles, qui rabattent les bancs de poisson vers la partie postérieure du filet. Le contrôle de l’immersion du chalut se fait au moyen d’un sondeur situé à l’avant du chalut, le netzsonde.

English:

A trawler is a boat equipped for trawling, a pocket-shaped net dragged along the bottom of the water or near the surface by one or two vessels. This catching technique is the most widely used in the world. Trawlers are responsible for more than half of the world's catches. Trawlers can operate different types of trawls. In this diagram, it is a pelagic trawl, namely a towed net that moves in open water, between the surface and the bottom, without being in contact with it. As with bottom trawling, there are simple pelagic trawls towed by a single vessel and pair trawls towed by two trawlers. The pelagic trawl is generally much larger than the bottom trawl. Its front part is made of simple ropes or very large meshes, which push the schools of fish towards the rear part of the net. The trawl immersion is monitored using a sounder located at the front of the trawl, the netzsonde.

Date 11 September 2015 (upload date)
Source Schéma de pêche : chalut pélagique
Author Gérard Deschamps
Bounding box
InfoField
N: 32.055655°S
W: 166.464844°W E: 155.214844°E
S: 57.82657°N
Keywords
InfoField
Fishing methods; Professional fishing; Fisheries; Deep sea fishing; Industrial fishing; Fishing

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A trawler is a boat equipped for trawling, a pocket-shaped net dragged along the bottom of the water or near the surface by one or two vessels. This catching technique is the most widely used in the world.

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