Lights, feed and tank options tested at PEI halibut farm

摘要

Halibut P.E.I, a Canadian company based in Prince Edward Island, recently completed projects examining the impact of different lighting regimes, feed types and tank design."We've done different things over the years on lighting," says Gerald Johnson, aquaculture veterinarian and director of science with Halibut P.E.I. "We tried green lights, red lights, low intensity lights, and high intensity lights. We tried balanced spectrum lights at low intensity and high intensity. We could never get any different results - the fish didn't seem to care."Although halibut are deep water fish and live where there is little light, they seem to have the ability to adjust to any lighting intensity, colour and quality, says Johnson.Nor did the company's research on feed types reveal any conclusive findings.