Truly Sustainable Fish Farming

Truly sustainable fish farming

About us

NEWS

April 6

Bent-Are Ratvik is the new Head of Operations in Oostend for Columbi Salmon

Columbi Salmon has brought in Bent-Are Ratvik as Head of Operations in Oostend. Ratvik comes from Refsnes Laks and will play an important role in developing Columbi’s salmon farming operations.
March 18

Columbi Salmon brings in Ole André Nordal to accelerate business development

Nordal enters the Columbi Salmon team in May and will play an important role in accelerating the company’s growth.
December 17

COLUMBI SALMON INITIATES RESEARCH PROJECT TO MAKE SALMON FARMING CARBON NEUTRAL

(Åfjord, Norway) Columbi Salmon has partnered with Norwegian Institute of Bioeconomy Research (NIBIO), Morefish and Biomar on a research project aimed at reducing the carbon footprint of salmon farming in Recirculating Aquaculture Systems (RAS).

Our process

Eggs and hatchery

Columbi Salmon will buy fish eggs (ova) from an external supplier. The eggs are contained in shelves where temperate freshwater flows through the shelves.

Aquaculture tanks - Tanks for the small fish where they remain in fresh water until reaching 100-300 grams.

Tanks for small fish

After hatching, the fish is moved to tanks, where they remain in fresh water until reaching 100-300 grams. In this phase, the smallest fish are called fingerlings, while the larger fish are referred to as smolt.

Aquaculture tanks - land based fish farming - the fish are transferred to the largest grow-out tanks.

Grow out stage

The grow-out stage corresponds to the period when the fish in traditional farming are moved from fresh water on-shore, to the ocean. Meanwhile, in our system the fish are transferred to the largest grow-out tanks.

Primary processing

When the fish reaches its target weight (4-5 kilos), it is transferred to the primary processing plant, which is situated next to the largest grow out tanks. The fish is slaughtered, and gutted salmon, including the head, is packed in ice-filled boxes and transported to consumers.

Aquaculture tanks - recycling - The fresh water from the fingerling/smolt phase is transferred to a large greenhouse (aquaponic) which has the capacity of growing up to 4,000 tonnes of salad annually

Recycled production

The fresh water from the fingerling/smolt phase is normally taken out and cleaned for particles and nutrients. In our system, some of this water will instead be transferred to a large greenhouse (aquaponic) which has the capacity of growing up to 4,000 tonnes of salad annually, without using a single gramme of soil.