Types of Aquaculture Technologies

There are many types of systems and farm designs used to grow fish. These include; ponds, net cages in lakes or oceans, rectangle raceway tanks, circular (round) tanks, earthen tanks lined with plastics or clays and other forms of containment. Basic Land based fish farms involve the use of one or more types of tanks or ponds and generally have water piped in and out to maintain life support for the fish and to flush the tanks of waste products. Basic designs may also include mechanical aeration equipment for adding oxygen to water.

In recent years land based farms have advanced in technology to become more eco-friendly and to provide greater security and control of the farming process. The most advanced of these are known as water recirculation systems or RAS designs. Advancements in design and technology are being driven in part by the need to develop alternative methods for aquaculture and by the demand for more fish and secure supplies.

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4,000 Pounds of Organic Vegetables Per Month, With 1/10th The Space

Arctic Char In Sustainable Farming?

Arctic Char Growing In Tanks

My experiences raising Arctic Char in land based farms using tanks and raceways, with groundwater supplies and water recirculation aquaculture systems, have been positive overall.

I am what you may call a Charr fanatic since the early eighties and most of my experience has been hard won. The road to now has had its share of bumps and even a couple of cliff sized falls. There have fortunately also been some sunny times and even pay days. It has been interesting and rewarding in many ways but also frustrating at times.

I have grown Char at stocking densities that exceed the normal for rainbow trout or salmon in similar farming systems. In a properly designed and operated land based farm, this factor can lead to increased production amounts per unit of rearing space. The high density stocking characteristics of the species can allow the production intensification necessary in controlled systems and provide increased economy of scale, helping to offset the increased costs of building eco-friendly land based fish farms.Full article published at northernaquafarms.com "Arctic Charr Aquaculture - History and Experiences in Canada"

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