Nutritional value of Mysis diluviana for the growth, development and reproduction of hatchery-reared salmonids.

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Mysis diluviana, a shrimp-like crustacean, is an invasive species in Okanagan Lake. As part of a strategy by the**BC government to reduce the impact of this species on the natural lake ecosystem, Piscine Energetics Inc. has**been harvesting Mysis from Okanagan Lake since 2000 and retails the harvested Mysis as fish food to the**ornamental aquarium industry. There are indications that Mysis could also be an effective source of nutrition**for rearing trout and salmon in hatcheries. If so, this could provide three important benefits: it could provide**increased economic opportunities for the Mysis harvesting industry, help BC hatcheries transition away from**fish foods containing unsustainable marine fish meal, and decrease the population of this invasive species in**Okanagan Lake. This project will therefore determine the nutritional value of Mysis from Okanagan Lake and**its effects on the growth and survival of trout and salmon reared in hatcheries managed by the Freshwater**Fisheries Society of British Columbia.