Trout

A word or two about trout . . .  I have devoted an entire gallery to Hybrid forms of trout.  Recently, a research biologist from Idaho published a key for identifying Brook and Bull Trout Hybrids.  I was surprised to learn that many of the fish I had previously identified as Bull Trout were actually Hybrids.


thumb_brooktrt_3666Brook Trout

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Bull Trout
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Hybrid

  • Brook Trout:  The dorsal fin has solid black markings with distinct edges

  • Bull Trout:  The dorsal fin lacks light or dark markings.  Some fish may have a few  light markings along the base of the dorsal fin

  • Hybrids:  The dorsal fin may have light or dark markings, but they lack distinct edges