On Tuesday, we posted the above photo of a huge fish caught by Greg Inglis—who guides at Lopstick Outfitters in Pittsburg, New Hampshire—on the Upper Connecticut River. We asked you to identify the species, since the fish is slightly odd looking.
Well, the vast majority of you got it right: that’s a large brown trout. There are several ways to tell that it’s not a landlocked salmon. Our randomly selected winner, Nick Yardley, pointed out two important characteristics: the tail is squared off, not forked, and the jaw extends beyond the eye. Others noted the thick caudal peduncle (the “wrist” between the body and the tail), the red spots, and the fact that so many of the spots extend below the lateral line. The scientific way to tell what species it is would be to examine the vomerine teeth in the roof of the fish’s mouth: a salmon has these teeth in a straight line, while a brown’s are in zigzag rows.
Thanks to all who played!