In the picture with all the orange fish, what fish is the one with the blue spots?
Western North Carolina
Started by
Guest_Creekwalker_*
, Jul 14 2011 08:58 PM
132 replies to this topic
#102
Guest_EricaWieser_*
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Posted 13 May 2012 - 11:40 AM
Wow. Those look great! Would it be possible for you to save these to the NANFA gallery (gallery.nanfa.org) with the species of fish included in the file name? Sometimes I link people to images in our gallery to show them fish near them but I can't find anything from the search bar that has been labeled "IMG03203". If it's "Fish species at location" then I can find it.
Edited by EricaWieser, 13 May 2012 - 11:41 AM.
#103
Guest_Skipjack_*
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Posted 13 May 2012 - 12:21 PM
Those are really beautiful pictures. North american fish have so much beauty.
Stoneroller, and those are actually tubercles, rather than spots.
#106
Guest_gerald_*
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Posted 14 May 2012 - 10:54 AM
The tubercles are battle armor. Since minnows (including stoneroller and chubs) have no jaw teeth, they use "teeth" on their skin (tubercles) to bash and scrape rival males. The turbercles are re-absorbed (better term anyone?) when spawning season ends.
Creek - that's another stoneroller. Chubs have tubercles only on the head. Stonerollers have them on their sides too.
Are the tubercles helpful or do they hurt the fish?
Creek - that's another stoneroller. Chubs have tubercles only on the head. Stonerollers have them on their sides too.
Edited by gerald, 14 May 2012 - 10:56 AM.
#108
Guest_Creekwalker_*
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Posted 14 May 2012 - 07:34 PM
Gerald, I think I answered my own question. Looks like a Central Stoneroller nuptual male. I had no idea they got this big.
Are the little stonerollers in the background also central stonerollers or another species?
Thanks!
Are the little stonerollers in the background also central stonerollers or another species?
Thanks!
#110
Guest_farmertodd_*
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Posted 15 May 2012 - 07:31 AM
The tubercles are battle armor. Since minnows (including stoneroller and chubs) have no jaw teeth, they use "teeth" on their skin (tubercles) to bash and scrape rival males.
An alternative explaination is that they use the tubercles for roughness to help keep in contact with the female during the act of spawning. It's hard to hold a gal when you don't have hands. If you watch closely during "clasps", the males will jut their heads into the side just behind and into the gill flap, which would explain the more developed tubercles on the head. In fact, it may be an interesting hypothesis to test on the extent of tubercles and how intensive the contact must be during spawning. Species like chubs only have them on their head because that's all they need to keep contact. Stonerollers and other nest associates are more on the fly and that's why they have the sandpaper down the body. Suckers get them everywhere (including the anal fin) to keep a rival from knocking them off, and may literally wrap themselves as best they can around the female.
Todd
#111
Michael Wolfe
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Posted 15 May 2012 - 02:18 PM
Percina darters (backbandeds and logpersch for sure) really do feel just like sand paper at certian times of the year. I usually dont "see" the turbercules onthese smaller fish (smaller than a hog stoneroller or a butched up Nocomis) but you feel it if you pick one up out of the net...
Some of those smaller stonerollers were probably just the ladies checking him out while he strutted around all horned up...
An Crail sounds like he's trying to write the next Ray Troll song..."It's hard to hold a gal when you don't have hands." You have to copyright that one real quick!
Its hard to hold a girl when you dnt have hands
I use turbercules to hold her in the sand
Doesnt matter to me mound, trough, or swail
I just want to be in the fish porn by Crail
Some of those smaller stonerollers were probably just the ladies checking him out while he strutted around all horned up...
An Crail sounds like he's trying to write the next Ray Troll song..."It's hard to hold a gal when you don't have hands." You have to copyright that one real quick!
Its hard to hold a girl when you dnt have hands
I use turbercules to hold her in the sand
Doesnt matter to me mound, trough, or swail
I just want to be in the fish porn by Crail
Either write something worth reading or do something worth writing. - Benjamin Franklin
#114
Guest_farmertodd_*
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Posted 18 May 2012 - 01:37 PM
Percina darters (backbandeds and logpersch for sure) really do feel just like sand paper at certian times of the year.
Which is interesting because among darters these are some of those that are congregative spawners.
Todd
#115
Michael Wolfe
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Posted 19 May 2012 - 03:43 AM
Which is interesting because among darters these are some of those that are congregative spawners.
I dont want to derail the thread, but finish it off and help us less experienced darter porn fans understand "congregative spawning"... sounds like doin' it in church to me... but I assume you mean some sort of group spawning... which I didnt know darters did... I have always seen males chasing females around and then a spawning event that was pretty obvious as they both shimmied and he srt of pressed her down into the substrate... but thinking about it they were all Etheostoma that I remember seeing that... so are you saying that these Percina are coming together in something other than pairs and spawning en masse?
Either write something worth reading or do something worth writing. - Benjamin Franklin
#116
Guest_farmertodd_*
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Posted 21 May 2012 - 12:54 PM
Logperch spawns are much more like suckers... Packs of males chasing prime females around and then diving into the substrate en masse. That paring off thing is a more derived behavior, even within Percina.
From the account for P. caprodes in Fishes of TN:
"Spawning migrations definitely occur, and aggregations of logperch gather at favored gravel shoals or runs. Males are nonterritorial and several may follow a single female until she submits to mounting . A male mounts the female by straddling her dorsum with his pelvic fins and bending his caudal region beneath the female ' s . Both sexes vibrate vigorously as eggs and
milt are extruded and partially buried in the substrate . Exposed eggs are usually eaten by the other males ."
Man, that's nice to have on pdf now lol.
Todd
From the account for P. caprodes in Fishes of TN:
"Spawning migrations definitely occur, and aggregations of logperch gather at favored gravel shoals or runs. Males are nonterritorial and several may follow a single female until she submits to mounting . A male mounts the female by straddling her dorsum with his pelvic fins and bending his caudal region beneath the female ' s . Both sexes vibrate vigorously as eggs and
milt are extruded and partially buried in the substrate . Exposed eggs are usually eaten by the other males ."
Man, that's nice to have on pdf now lol.
Todd
#118
Guest_Creekwalker_*
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Posted 28 May 2012 - 08:25 PM
I had an idea while I was watching my friend the stoneroller and his ever present hoard of Tennessee shiners.
Is it possible that the tubercules on his body and tail are used to fend off shiners and other fish that might prey on his offspring?
He was swiping his tail around a good bit while he was on his bed.
I have some video that I will post later.
Is it possible that the tubercules on his body and tail are used to fend off shiners and other fish that might prey on his offspring?
He was swiping his tail around a good bit while he was on his bed.
I have some video that I will post later.
Attached Images
Edited by Creekwalker, 28 May 2012 - 08:25 PM.
#120
Guest_Casper_*
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Posted 30 May 2012 - 11:54 AM
Very good, i love that rich green color on the appropiatly named darter. We hope to be seeing some of those Saturday. I asked what kind of camera you are using on a previous post... to no response. I am sick of Olympus cameras. I have bought 8 and all have leaked.
Looking at Pentax WG-2 or the new Panasonic Lumix.
Looking at Pentax WG-2 or the new Panasonic Lumix.
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