Saturday, April 20, 2019
Rosyside Dace, in nuptial colors
Last Tuesday was an epic ichthyological day, at least as far as I was concerned. Fish-hunting is something I'm lucky to get in on once or twice a year, and these aquatic forays are always fruitful, and highly educational. And when I say fish-hunting, this isn't bluegills with doughballs or bass with rod and reel. We're nearly always after far more obscure species than that, and the target this day is a fish known to very few.
Our guides were aquatic biologists Kelly Capuzzi and Laura Hughes. You've seen Laura's name in posts here many times, if you are a regular reader. Kelly works with stream surveys and fish routinely as part of her job with the Ohio EPA. And man, does she know the scaly crowd. Back in my early days with the Ohio Department of Natural Resources, I was fortunate to have the opportunity to spend untold hours afield conducting fish surveys with Dan Rice (who wrote this NEW BOOK) and Ted Cavender. Both of those guys are ichthyological legends, and I never failed to be awed at how they could glance through a seine full of similar minnows and shiners and quickly call out the different species. Deja vu set in after watching Kelly and Laura do the same.
Kelly noted their resemblance to salmon, and I couldn't agree more. Elfin salmonlets. A big one is only a few inches long. These two males are still in breeding condition and it isn't hard to see where their common name is derived.
There are about 62,000 river miles in Ohio. Big rivers like the Maumee, Muskingum, and Scioto get more than their fair share of attention due to their size and conspicuousness. But it's the little headwater streams that do much of the heavy aquatic lifting. They make up nearly 80% of Ohio's river miles, and form and feed the big streams. As we've seen - and this is just a tiny sampler - headwater creeks support an interesting diversity of specialized fishes and other aquatic life. But they are vulnerable to destruction and detrimental impacts. One of the largest rosyside dace populations was wiped out by a highway construction project. Just a week or so ago, in the area that generated this article, I came across an excavator smack in the middle of a headwater stream, dredging rocks which were being hauled out by big dump trucks. Permits? Nah, probably not. Stuff like this goes on all the time, and it's not to the benefit of the streams' rightful occupants.
Major thanks to Kelly, Laura, John and Phil for creating a fascinating natural history foray.
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