Possabley A Central Stone Roller?

Hey ya'll,
I would like to ask for another ID please.
I caught a mess of these this afternoon, and from what I can tell in some research,
they would appear to be a type of central stone roller, they have the same fins and several markings to point that direction, but the three or four I found in searches were not an exact match,
so I thought I should come and ask.
Thanks in advance for any thoughts and IDs

Looks like a Stoneroller to me. In what part of the country are you located?

Thanks for the reply,
This will get FishWhisperere a little more fire up, lol,

I'm Located 23 miles North West Of Davenport Iowa in a little place called Big Rock.
Located half way between Dixon and Wheatland on 130th Ave,
I can't locate the map I used before online that told me what Creek was down the street a Block
the spring runs into....this spring is where I'm catching all these fish from.

I'll second that you identified your fish correctly.

MrAquarium,

After reviewing my texts, I would offer that you have captured a Largescale Stoneroller (Campostoma oligolepis). The info that I am basing that on is your location, the fact that your fish does not appear to have a black band in the anal fin, and that your fish appears "robust". The only thing that I would have liked to check to make my ID more sure would be to count the lateral line scales. I can almost do that from your pictures by the way. Great job with the pics! The texts I consulted were:

Becker, 1983. Fishes of Wisconsin. University of Wisconsin Press. ISBN 0-299-08790-5.

Page and Burr, 1991. A Field Guide to Freshwater Fishes of North America North of Mexico. Houghton Mifflin Publishing Company. ISBN 0-395-91091-9.

Brian

Brian J. Torreano - Owner
BTDarters
American-Native Fish for your Aquarium...and more!
http://www.btdarters.com
Phone: (262) 268-7489

The fish is certainly a Campostoma species. But the existing species definitions for oligolepis and anomalum are loose at best. Based on (the dreaded) DNA evidence the existing species don't even come close to separating the species as currently defined. If one compares various populations considered to be one species or the other, the result is a seemingly random patchwork across the stoneroller's range.

What exactly are the lateral line scales?
I wish I would of read the forums before I went over the check the trap,
I just tossed a good 7" one back no more then 6 minutes ago,
lol......
If I know what it is I have to count, I can do that and post it here.
I did read something about that on one of the sites I seen the other day,
but I didn't safe them, and I don't think it showed what it is to count.

MrAquarium,

Lateral line scales are "pored" scales that run along the side of the fish from the back of the gill cover to the base of the tail. "Pored" means that the scales each have a unique channel and opening that allows the transmission of fluid along the row of pores, along the fish's body. This allows the fish to "feel" or "hear" vibrations in the water that can alert it to the presence of a predator, or food, or whatever. What this means for you is that the pored scales are visible when you look closely. They will look like a row of raised dots along the side of the body, running from behind the gill cover to the base of the tail. It would be virtually impossible for you to count the lateral line scales of the living fish if you tried to hold the fish and count them. If you can get a close-enough still photo of the fish, however, we may be able to count the lateral line scales. Based on your current photos, I think you might be able to get a good enough shot. I have attached below one of your photos with the lateral line region highlighted, to give you an idea in what region to look for the scales.

 Possablecentralstoneroller004_hilite_LL.jpg   60.18KB   1 downloads

Brian

Brian J. Torreano - Owner
BTDarters
American Native Fish for
your aquarium...and more!
Web: http://www.btdarters.com
Phone: (262) 268-7489