Here is a C. sphenoides from last April. This was field identifed as C. sphenoides and verified by Carl Williams with TWRA.
This is definatly my crayfish. Is this a dwarf?? Where in the field was this? Where did you catch it??
Posted 06 March 2007 - 06:54 PM
Here is a C. sphenoides from last April. This was field identifed as C. sphenoides and verified by Carl Williams with TWRA.
Posted 06 March 2007 - 06:59 PM
I'm pretty sure that is a Cambarus sphenoides. They are a pretty common crayfish in small to medium size streams in Tennessee. I collected quite a few of them in first through fourth order streams in the Obed River above Dale Hollow last spring. I saw alot in the Hiwassee River all last summer too (along with some awesome bright pink and blue ones). For a positive ID with keys for the area you really need a mature male and a better measurement would be the chelae length, which is from the snout to the right at the start of the tail, instead of the total length.
Posted 06 March 2007 - 08:43 PM
Posted 07 March 2007 - 07:49 AM
I'm pretty sure that is a Cambarus sphenoides. They are a pretty common crayfish in small to medium size streams in Tennessee. I collected quite a few of them in first through fourth order streams in the Obed River above Dale Hollow last spring. I saw alot in the Hiwassee River all last summer too (along with some awesome bright pink and blue ones). For a positive ID with keys for the area you really need a mature male and a better measurement would be the chelae length, which is from the snout to the right at the start of the tail, instead of the total length.
Posted 07 March 2007 - 09:32 AM
Posted 08 March 2007 - 06:49 AM
I found this one on the web with this name attached to it. I put it side by side with the one I caught here. Cambarus Depressicambarus sphenoides
I was hopeing for a common name though. But maybe there is no common name for this one. Do these two look like they could be the same species? And does anyone know how large this species gets if you can ID it for me.
Posted 08 March 2007 - 06:55 AM
There are alot of improper spellings. It is Hiwassee. I can't remeber exactly where I found them at, but it had to be between the confluence with the Ocoee to just upstream of Patty Road. There is a boat ramp at Patty Road, but everything surrounding it is private. I also think upstream of Patty Rd begins the trout water designation, but that should be in the fishing regulations. They were VERY uncommon to say the least. I saw only one blue and two pink forms over six days of electrofishing and 12 days of snorkeling during the past two summers. In general crayfish weren't that common in that stretch of the river because there isn't much for them to burrow under. The river is pedominantly gravel shoal. The more frequent crayfish there is brown to pine green and speckled. Not sure what it is I never kept a specimen to ID. If you ever go out there make sure you check the TVA water release schedule first for Appalachia Dam. If they turn their generators on at 11 am the water begins to rise at Patty Rd around 3 pm.
order is exactly that...a way to order streams in a drainage from their begining downstream. For example, the very smallest headwater streams are first order streams. When two 1st order come together you have a 2nd order. When two 2nd order come together you have a 3rd order, and so on and so on. For the most part it, stream order increases with width and volume. I just happen to give a lecture on this last week and have this handy picture.
Posted 08 March 2007 - 06:57 AM
No problem. I would not know where trout stream starts or stops so since they are hard to come by anyway I will not attempt to dipnet near or at a trout stream. How bid does the one a I have posted here get. No if I can remember Hiwasee I will be all set. I must say that is easier than all the other ways I have been spelling it. Are you the person that says you will be moving soon?? I would really like to meet more members in my area here in Chattanooga. I live in Ooltewah. Even if it is a casual lunch or something that would be great. And I understand if I am not mistakeing that you teach at one of our Universities/Colleges here in Chattanooga??
I went with dredcon to his place of teaching " Nichols State University" in Thibodeaux Louisiana and he showed me so many neat creatures in his labs down there. I would love to see what you do.![]()
Thanks very much for the info.
Daniel , AKA nativecajun
Posted 08 March 2007 - 06:54 PM
I love this site despite the once in a while heated debate.
Posted 09 March 2007 - 07:16 AM
I find this amusing, considering that you are frequently at the center of the heated debate. Maybe this should clue you in that something in your posts is causing this and needs to be remedied?
Posted 01 October 2007 - 12:43 PM
see below
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