Anybody have expertise with N. micropogon and N. leptocephalus? I don't see Blueheads in PA and would like to have some good characters to use for field/lab ID's. Any advice would be much appreciated.
Nocomis ID help
Posted 10 April 2016 - 07:17 PM
Adult males should be easy, tubercle pattern is quite different. River chub have tubercles mostly on front of head ending near or in front of the eyes. Blueheads the tubercles are up on top of the head with none on the front of the snout. River chub are a little more elongate to my eye and blueheads are stockier. Other than these very basic things I would have to look them up in a field guide to go into any more detail.
Male River Chub
Male Bigmouth Chub just for comparison
These three were caught the same day during the collecting challenge at the NC convention a couple years ago. Was pretty cool to see a very nice specimen of all three of these within a couple hours.
Brian J. Zimmerman
Gambier, Ohio - Kokosing River Drainage
Posted 11 April 2016 - 02:49 PM
Juveniles and females are difficult. Jenkins & Burkhead's Virginia book has the best comparison I've seen.
Hangin' on the Neuse
"Taxonomy is the diaper used to organize the mess of evolution into discrete packages" - M.Sandel
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