An economic analysis of land-based vs. sea-cage grow-out of the Atlantic halibut, Hippoglossus hippoglossus

The Atlantic halibut, Hippoglossus hippoglossus, is considered a prime species for aquaculture in Atlantic Canada. Significant research has been done regarding optimal culture techniques for the broodstock and larval stages, and the focus is now beginning to shift to the grow-out of juveniles. Several private companies have initiated pilot scale production facilities in New Brunswick, Nova Scotia and Newfoundland.; The grow-out of halibut juveniles can be achieved by two methods: rearing in sea-cages or rearing in land-based tank facilities. Each method has advantages and disadvantages as compared to the other.; The analyses are based on annual production of 100 tonnes with a 48 month grow-out period. Juveniles would be purchased from a hatchery at 100 g weight and reach a final market weight of 5 kg. The sea-cage operation makes use of 50 m circular cages and shows a positive IRR of 11% after 9 years of operation. The land-based facility makes use of 16 m x 3.5 m x 0.6 m raceways and shows an IRR of 0% after 9 years of operation, due to the high operating costs and initial capital costs. (Abstract shortened by UMI.)...