Posted: 2010.12.23(Thu)10:05 Post subject: Willie's Various Fishy Pics/Adventures [SALTY!]
Well, I decided I'd post some various fish pics that I have from 2010. I started my research in May 2010 surveying the Ocmulgee River, GA. for Robust Redhorse (Moxostoma robustum). Briefly, they are a very large sucker fish (Family Catastomidae) that was presumed extinct. In the 90's a specimen was "rediscovered" in the Oconee River near where I grew up. Since, they have using Oconee brood stock to collect eggs and sperm and started large captive propagation programs, and stocking juveniles into presumed historic rivers (Savannah, Oconee/Altamaha, and Pee Dee/Yadkin Rivers). So, in short, I am looking at the Ocmulgee River population to see if stocking efforts have been successful. (It is much more complicated than that, but I will spare you the 38 pages I have written on the subject for my project proposal).
So anyway, I figured I'd share a few pics of some of the species of fish I have taken pictures of. With the method of sampling I use, you will not see many tiny fish (<6-7 inches), and I will not bother scooping fish that are bigger then my net. So here are a few a the fish that I found to be photo worthy because of color, size for the species, etc.
Because I am a sunfish nut, I'll start with the Centrarchids while my other photos upload to the internet (I use Webshots btw). These are all males.
Longear Sunfish (Lepomis megalotis)
Very pretty, but introduced into this river. They have a very strong population and usually max out around 6-7 inches.
Big 'un for around here^
Bluegill (Lepomis macrochirus)
Bluegill X Longear Hybrid (L. macrochirus X L. megalotis)
Last edited by UncleWillie on 2011.01.24(Mon)20:44; edited 3 times in total
Very nice. I catch a lot of these species in the spring river! Where is this river/what river is it? _________________ In the End, we will remember not the words of our enemies, but the silence of our friends. - Martin
59, these were all caught in the Ocmulgee River, which is middle Georgia - kind of the lower piedmont / upper Atlantic coastal plain. I'd imagine you catch the bluegill, warmouth and longear sunfish and the crappies too. Redeye and shoal bass are endemic to Georgia (a bit of eastern Alabama too). The redeye bass (even though my pics doesn't show it) are beautiful. They have red margins on the caudal, anal and soft portion of the dorsal. They also have nice greens and blue to them. They don't get large and make very cool aquarium fish if you don't want a tank-buster. 90 gallons will due.
Unissuh, yeah, that's the dipnet I use each day. I say I don't bother scooping fish that are larger, but the robust redhorse often fill the entire net bag depth and weight 10 lbs +. I'll have to post pics of the suckers soon (after all, they are the reason I am out there). I don'nt try to net longnose gar, although cool, I don't feel like messing with them just to get a pic. I know there are some record longnose gar in the river... huge!
Here is a tub full of suckers. Most of these are spotted suckers. Don't worry, they aren't dead, just stunned. In the spring and fall season we usaully averaged a little under 200 suckers per day, averaging about 120 suckers per day in the summer. I weigh and measure each sucker I come across.
Rales, In short, I am monitoring a population of stocked robust redhorse in the Ocmulgee River. Because they are very few of them, and they inhabitat deep, fast water, they are very hard to catch. Consequently, current population estimates have the potential to be biased and very inaccurate at predicted robust redhorse abundance. My project is to survey the entire project area multiple times within a season, for 5 seasons (Spring, Summer, Fall, Winter, Spring) and use the data I collect on the suckers, and the habitat (water quality, substrate, velocity, turbidity, etc) to use hierarchical models to determine site occupancy of robust redhorse. We use this occupancy data and detection probabilities for each fish to try to more accurately estimate robust redhorse populations. I'm afraid I cannot get too much more in depth, and bore everyone. But I figured I'd write enough so that folks who are interested in the "nerdy" details could go look up some of this stuff. I will only be posting pics and more fun stuff rather than the painful details of the project.
Dusko, Thank you very much. I will certainly be posting more pics when I get a bit more time after the new year. I will definitely have to post pictures of the suckers soon. I do not have underwater pics of my project or on that river, BUT I do have some underwater pics of a few snorkel trips I did for fun over the summer and fall in North Georgia and SE Tennessee. I will be sure to post those as well. Cheers.
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