Identificaciones de oebarker

Believed to be Kokanee or salmon smelt of some kind, need ID, lake has no rivers to it, only 2 lakes on my island are stocked with Kokanee, all 3 farmed, need confirmation they’re not just weird rainbows so I can contact local conservation about their being there

Had very sharp teeth, no notable rainbows, two had very light spotting on the dorsal one no spots, very silvery