Anchorable mobile spar and ring fish pen

Details Anchorable mobile spar and ring fish pen Anchorable mobile spar and ring fish pen

A - Human Necessities

01

K

A01K 61/00 (2006.01)

Patent

CA 2216754

An anchored mobile pen (30) for growing fish or shellfish has an elongate, central, vertical spar buoy (12) surrounded by at least one horizontal net supporting ring (10) with continuous netting (8) extending from an upper end (14) of the buoy (12) to the ring (10) and thence to a lower, submerged end (16) of the buoy (12) to produce an enclosed pen (30). The pen (30) is optionally not anchored and free to float with the currents although it may more often be anchored in a conventional fashion. The pen (30) further may include a wave damper plate (22) suspended from the lower end (16) of the buoy (12), and may also include a ballast weight (26) suspended from the damper plate (22) to adjust the level at which the pen (30) floats in the water. The mobility of the pen (30) provides the benefit of avoidance of localized hazards, like toxic plankton blooms, and the capability to move the pen (30) to a more convenient harvesting location, if necessary.

Cage mobile (30) destinée à l'élevage de poissons ou de crustacés munie en son centre d'une bouée à espar verticale (12) entourée d'au moins un anneau (10) horizontal d'accrochage de filets comportant un filet (8) qui se déploie entre l'extrémité supérieure (14) de la bouée (12) et l'anneau (10), puis, de là, vers l'extrémité inférieure submergée (16) de la bouée (12) de manière à constituer une cage fermée (30). La cage (30) peut ne pas être ancrée et flotter au gré des courants ou le plus souvent être ancrée de manière classique. La cage (30) peut de plus comporter une plaque (22) amortissant la houle suspendue à l'extrémité inférieure (16) de la bouée (12) et un ballast (26) suspendu à ladite plaque (22) et permettant de régler la hauteur de flottaison de la cage (30). La mobilité de la cage (30) offre l'avantage de permettre d'éviter les dangers localisés tels que des proliférations de plancton toxique et de déplacer la cage (30) vers de meilleures zones de pisciculture.

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