GreenBag
Get to know our innovative closed cage for in-sea production
GreenBags are delivered as complete units consisting of arrangements for water supply, oxygen supply, water drainage, particle removal, dead fish removal, and connection for fish pump.
GreenBag is a closed fabric-based cage system, which gives the farmer better control. Incoming water can be filtered and UV-treated, so that lice are avoided, and sludge in outgoing water is collected. Depth-adjustable water intake allows for temperature optimization and better growth. Zero feed waste and fresh fish provide better profitability. GreenBag facilitates good fish welfare and efficient food production while protecting the external environment.
GreenBag in operation at Hardingsmolt , Fitjar (Western Norway)
GreenBag is delivered with a volume of 6000m³, the outer diameter of the floating collar is 24.4m, and can thus be installed in steel frames built for 25m x 25m cages.
Merdslippen's main focus is to develop and deliver solutions for aquaculture that take into account good health and welfare for the fish by facilitating the best possible aquatic environment. Ultimately, these are considerations that are crucial for the economics of the aquaculture business. The GreenBag pen takes into account good fish health and welfare, among other things through depth-adjustable water intake, good water exchange capacity, effective oxygenation of intake water and continuous removal of sedimenting sludge. The use of a fabric-based pen also allows for gentle movement and delivery of fish through a patented controlled collapse of the cage bag. Options in the form of a high-capacity particle filter and UV treatment of the intake water provide further control over the fish's growth environment.
The closed cage material is non-toxic and well suited for use in grow-out fish. The fabric is many times stronger than what it is exposed to and has good anti-aging properties when used in the sea.
The illustration shows a cross-section of GreenBag .
Technology on the ocean's terms
GreenBag is a closed cage system where clean water is pumped up from the ocean depths. The cage solution protects the fish from external influences, keeps lice out and enables gentle transfer of the fish. The result is a solution that provides lower mortality, as well as healthier and more vigorous fish that can withstand more and are better off. Increased fish health also positively affects the taste of the finished product.
8 GreenBag units mounted in steel frame - shown here as an illustration
Assembly of GreenBag in a internally developed assembly tower on Merdslippen industrial area at Skaganeset, Sotra (Western Norway)
