Tiger trout sometimes, but rarely, occur in nature when browns and brooks, which share the same autumn reproduction cycle, accidentally mix eggs and milt.
Coloration and marking most resemble brook trout; a mean set of teeth and proclivity for eating other fish stamps them as the progeny of browns.
A so-called "back cross" — female brookie and male brown — yields what commonly is termed a leopard trout, lacking the brook trout worm-like patterns and with more spots. This color pattern is considered less attractive, and the blend seldom is made.
Read more: Tiger trout fighting fish of different stripe - The Denver Post http://www.denverpost.com/outdoors/c...#ixzz2XyBDXWlJ
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