Recherche

Buoy, Fishing


Image - Buoy, Fishing
Pour © contacter :
LaHave Islands Marine Museum
Tous droits réservés.
Nom de l'objet : Buoy, Fishing
Type de l'objet : Trawl Keg
Catégorie de l'objet : Fishing Equipment
Matériaux : wood, metal, rope
Numéro d'accession : 1978.130.01
Autres données géographiques : [44.2327161,-64.3701303]; [44.2327161,-64.3701303]
Date de fin de production : 1978-12-31
Description : Trawl Keg. A cylindrical container with metal rings around the edges of each end. There is also a white rope of which either end is tied to opposite sides of the top of the keg. The body of the keg is made of wood but is significantly covered in an uneven green layer of sea scum. Underneath it appears to be painted. 
Fonctions : This would have been used as a buoy attached to a trawl net for fishing applications. The buoy would have marked the edges of a trawl line, most likely used for midwater/pelagic trawl fishing. Trawl Kegs             Trawling kegs were used as buoys that attached to trawl fishing nets while they were cast into the ocean. Keg buoys were first used as an alternative to the traditional boat-buoys that were shaped like boats and were often overtaken by the tide. The keg buoy would be coated in tar to prevent leaks and had a much greater buoyancy. The buoy itself would be used to mark the edges of the trawling net during the fishing process. Trawling             Trawling nets can be dragged by one boat or between two boats. The net itself is either dragged along the sea floor (bottom trawling) or it is released into open water (midwater/pelagic trawling). In most cases, midwater trawling requires the use of buoys on the nets being used to mark the edges of the net, however with most bottom trawling (aside from deep sea bottom trawling) they are not required since the net is mostly visible from the boat.             Bottom trawling can have serious effects on the local sea population, environment and fishing industries. Because it is very unselective in its process. Since nets are dragged along the bottom of the sea floor perpendicular to the tide (to maximize yield), it catches any fish and shell fish that it passes, but also other sea animals and debris. This can also disrupt and destroy the habitats of sea life, and impede the life cycle of young fish.  Since the process is unselective, it leads to extremely high discard rates of unwanted fish wish can lead to overfishing and damage local fisheries. Several countries and regions including Indonesia, New Zealand, the Mediterranean and parts of the United States have banned bottom trawling because of this.             Midwater/pelagic trawling is less harmful to local ecosystems and slightly more selective in its yield. The net is released into deeper water and does not touch the sea floor. In most cases the nets are much larger than bottom trawler nets, and are used to catch schooling or shoaling fish. While this is less harmful and more selective than bottom trawling, these nets can also pick up unwanted fish or sea-life and can lead to discarded fish and animals.
Établissement : LaHave Islands Marine Museum  Facebook-LaHave Islands Marine Museum 
Ville de l'établissement : LaHave
Province de l'établissement : Nova Scotia

Coordonnées de cette page web

Date de modification :