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Posts: 574
| Caught last night seemed healthy otherwise. What is this? Anyone ever seen these before?
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Posts: 2024
| I just dry heaved...
I've seen some pretty messed up fish before, but that's just disgusting. Strangest thing I've ever seen. |
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Posts: 355
Location: Wausau, Wisconsin | I'd wear a sars mask next time you go fishing. |
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Location: north west wisconsin | that one on the fin is huge!!!! |
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Location: Not where I wanna be! | definately wierd....nice lookin fish though |
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Location: Pewaukee, Wisconsin | thats not right.....lol |
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Posts: 332
Location: Neenah, WI | I WOULD SEND A PICTURE TO A FISHERIES BIOLIGIST HE MAY OR SHOULD HAVE A ANSWER. SOMETHING I HAVEN'T SEEN BEFORE BUT IF FROM THE MAD CHAIN . mAYBE THE COLLEGE KIDS ARE FEEDING THE SCHAFER LIGHT. THAT COULD TURN ANY LIVING THING INSIDE OUT
SAINT 1
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Posts: 317
| looks like some sort of carcinoma. gross. |
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Posts: 221
Location: ohio | wow, i seen the little purple circles before ( in Photo's) but nothing like that ,,,,I noticed several are bleeding,
I would ask someone from the D.N.R.
Nice fish despite the quazie motto bumps.... |
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| I've seen some fish on the Mississippi River when The DNR guys were pulling nets, and they said fish develope lots of small bumps from being handled, from rubbing against rocks and stiff stalked weeds. These were pike and walleyes. They talked about what we all know already, that is the protective slime being removed and sores forming or parasites getting into the flesh....but I have never seen anything close to the size of that golf ball. I agree. Find a fisheries biologist and show him the pictures.
The fish appears to be girthy and well fed. The small lumps are numerous, but are they going to get as big as the one in front?
Let us know if you find anything out. I'm curious, because I've never seen anything even closely resembling that thing on it's fin.
Cancer? Some type of harmless tumor?
I'd like to know.
Nice fish though.
Beav |
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| cancer |
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Posts: 55
Location: SW Michigan | We catch walleys on the Detroit & Saginaw Rivers with "warts" on them. Don't know if it's the same thing or not, but here it's just a harmless (butt ugly) virus. Doesn't seem to affect the fish or flesh any. |
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Location: Algonquin, ILL | See what happens when they don't follow Safe Spawining Practices 
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Location: Mille Lacs | I'm no expert, but it looks like lymphocystis. |
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Posts: 8863
| And people swim in that water... |
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Posts: 112
| Maybe this, from Great Lakes Fishery Commission Web site
9. NEOPLASMS OF NORTHERN PIKE (Esox lucius) AND MUSKELLUNGE (Esox masquinongy)
9.1 Neoplasms of the skin
Lymphosarcoma is a common disease involving the skin and dermis of northern pike. It occurs throughout North America and Europe and may reach prevalence rates of 10-20 percent (Sonstegard 1976). The disease in muskellunge has been observed from Lake Huron and the St. Lawrence River. The symptoms of the disease are similar in both the northern pike and muskellunge. Anatomically, the lesions can occur anywhere on the body. Grossly, the lesions vary in appearance depending upon their anatomic location. For example, skin lesions usually occur as reddish-purple "blisters" and ulceration is common (Figure 15), whereas fin lesions (the pelvic fin is commonly affected) appear as a greatly thickened irregular mass enveloping the fin. Jaw lesions produce reddening and thickening of the gingival tissue and lesions of the head may be a single nodule or appear as multiple coalescing groups. The occurrence of lymphosarcoma is cyclic and prevalence is highest in the spring and fall. It is almost always fatal to muskellunge (Sonstegard 1976).
Confounding lesions
Most lesions characterized by open sores (ulcers) can be confuse with lymphosarcoma. Similar symptoms may result from wounds, parasites (including lamprey), and bacterial, fungal, and viral infections. The need to confirm field diagnosis with histological diagnosis cannot be over emphasized.
Etiology
Extensive data indicate an infectious etiology. Lymphosarcoma is transmissible by inoculation of cell-free homogenates in northern pike, and in both species, cell-free homogenates yield evidence of the presence of an RNA virus (Papas et al. 1976). These diseases appear to have a viral etiology (Sonstegard 1976). Because of the pronounced seasonal variation in disease prevalence, samples collected at different seasons and/or water temperatures, will yield different prevalence data and confound temporal and spatial analysis.
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Posts: 143
Location: Kentucky | In other word's it has an STD!! LOL!! |
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Posts: 73
Location: Indiana | That diagnosis seems to be fairly obvious. Judging by the ulcers, the bumps, and the lumps on both fins...not that one ulcer would be evident. But look at that fish. Obviously this is pretty advanced whatever it is.
So...
The fish is contagious.
The fish is going to die.
Would it be beneficial to the fishery to harvest that fish?
No...not to eat it. GROSS. I'd hate to have one of those lumps on my lower unit. But to prevent it from causing damage to other fish.
And if you think I'm jumping to conclusions...what if you caught that knowing it was a possibility without a confirmation. When you put it back, nobody might catch it for months and months...maybe infecting more fish over that time. Even though it's only a possibility, would it still be worth it just to avoid the potential negatives???
Oh....and I'm not meaning to assume that's what it is. I'm just saying what if...
But, if there are any dnr biologists that could help us decide what to do...that would be awesome.
Edited by Halfpint 7/27/2007 2:55 PM
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Location: The Yahara Chain | Halfpint - 7/27/2007 2:53 PM
Would it be beneficial to the fishery to harvest that fish?
If it was caught where I think it was caught, harvesting is not an option. The fish is not of legal size, 45" minimum on the Yahara Chain. |
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Posts: 8863
| WARNING: UNFOUNDED SPECULATION
Harvesting the fish may sound like a good idea, but my suspicion is that it's probably present across the entire food chain. In order to erradicate something like this you'd probably have to harvest ALL the fish, and then eliminate the source of contamination (how it got in the lake in the first place) I'd place my bets on the source of that being human activity. |
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Location: Algonquin, ILL | I quit fishing the Yahara Chain years ago when almost every Crappie we caught had that stuff on it
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Posts: 8863
| You won't fish the Yahara Chain but you'll fish the Fox Chain?
It's an unfortunate result of urban development -- everything you flush down the toilet, wash off your car, put down the sink, or spread on the lawn eventually finds its way into the watershed. What's really scary is they are finding reproductive mutations in amphibian populations that they now think are from oral contraceptives...
Yessir, we've done a fantastic job of polluting our lake ecosystems.
Might be time to start fishing where the water is a bit cleaner. |
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Posts: 73
Location: Indiana | Not saying I would do it, and I certainly wouldn't like to. Just curious of what the right thing to do would be...if there was a way to be helpfull. Looking at that pic makes me think there is something definately wrong with it. And I certainly don't want to go around catching those things all the time. It wouldn't be nearly as much fun if you had to put on a biohazard suit to pick one up.
I've never kept a fish I've caught. I don't have it in me to do it...I'm kinda a softy. But don't tell anyone else I said that...
The question might be hypothetical, but I would like to hear a biologist if there are any out there...you never know and I think it's an important what/if question. |
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Location: Algonquin, ILL | EA: The fox chain may be a " Toilet Bowl" but I have never seen a fish with that stuff on it ( Yet ) by the way I may have an open seat next weekend, if your interested
You are totally correct in that everything we flush down the drain eventually ends up in the lakes & rivers, finding pristine water is getting more difficult every year due to development 
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Posts: 574
| Bytor - 7/27/2007 3:01 PM
If it was caught where I think it was caught, harvesting is not an option. The fish is not of legal size, 45" minimum on the Yahara Chain.
My bumb board certainly said it was over 45" |
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Location: The Yahara Chain | Jason Bomber - 7/27/2007 7:59 PM
My bumb board certainly said it was over 45"
My bad, Jason. I would have guessed 44. Nice job. I am glad that I have never caught one that looked like that, it gives me the creeps just looking at the photos. |
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Posts: 574
| Bytor - 7/27/2007 10:34 PM
Jason Bomber - 7/27/2007 7:59 PM
My bumb board certainly said it was over 45"
My bad, Jason. I would have guessed 44. Nice job. I am glad that I have never caught one that looked like that, it gives me the creeps just looking at the photos.
No worries.
Nasty though whatever it is. I wanted to wear a rubber glove later that night when I had to take a leak. |
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Posts: 221
Location: ohio | Maybe they (DNR) should keep pamphlets or some sort of notification photo's near the landings and marina's with explanations or do's and dont's if any fisherman comes in contact with something like this.... I ALWAYS see warnings about endangered birds, animals and other critters posted everywhere at the lakes i fish. so why not educate us whith this sort of thing ? JMHO but why not ? still, Nice fish jason ! |
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Location: Contrarian Island | this Madison Chain tub had the same spots....I have only seen one other one with it...so I suspect it isn't too worry about....this fish was a few years ago....
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Posts: 317
| JohnMD - 7/27/2007 7:41 AM
See what happens when they don't follow Safe Spawining Practices
I just spit pop through my nose! Classic! |
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Posts: 317
| JohnMD - 7/27/2007 7:41 AM
See what happens when they don't follow Safe Spawining Practices
I just spit pop through my nose! Classic! |
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Posts: 574
| Brad, how big was that? If you look closely at some of the bumps, like the lower fin, and the rash on the tail it looks like its the same fish. It even looks like the same side of the lake. |
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Location: Contrarian Island | holy crap...it IS the same fish...here is another pic of the fish which shows the side a bit better and sure enough the spots line up.....it was 46" on the nose....how much did it grow since then? looks like 47.5" maybe? I got it in the middle of squaw bay....
Edited by MSKY HNR 7/30/2007 7:43 AM
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Posts: 135
Location: Elgin, IL | I was just getting ready to type a "wait a second... don't the bump patterns on these two fish look exactly identical?!" Just looks like a few of the ulcerations are a little bigger now. And the first pic is of the same fish caught a couple years ago... so whatever the disease is, it hasn't got much worse... and it certainly doesn't appear to be lethal to the fish. So it's certainly ugly, but not deadly. Just like Todd Minor. 
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Posts: 2024
| Very cool!!! |
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Posts: 32955
Location: Rhinelander, Wisconsin | CPR Works. |
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| Just a note, I forwarded the photos to a few biologists in WI and so far they have not seen this before, If indeed they are both the same fish this is pretty amazing and more than likely isolated to this single fish!
Here is what one of our disease experts has to say so far. If there are better close up shots of the tumors that would be great.
"I have not seen this in muskies before. The bumps could be tumors, an encysted parasite, a bacterial infection or something new. If you catch another fish like this, please contact the DNR and we can test the tissues for pathogens. Keeping the fish in a bag, in a cooler with ice is better than freezing if we need to test for pathogens."
Good Luck
Tyee |
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Posts: 105
| they look like the same fish to me, some location of those nasty little bumps. if it is the same fish, it couldnt be that harmful to them. |
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Posts: 574
| Brad, it only grew a very small bit. It wasn't even 47. Over 46, but not much. Looks like its head and bumps were the only thing to grow.
Very cool. I got it real close to Olin, so not even 300 yards from where you caught her.
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| Wow. Same fish. That is definately pretty cool. Freeking gross, but still cool nonetheless. Glad it seems isolated. Not that I want to rub all over them or anything... |
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Posts: 6
| I have now heard from multiple WI DNR biologists and none of them have ever seen anything like this. They are very interested in the fish so if it is caught again they would like the fish or if there is another out there with leisions like it they would like to get it tested. Obviously it isn't deadly to the fish and education of diseases is priceless.
Good luck
Tyee |
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Location: Yahara River Chain | I think they are muskie ticks. They were bad this year. They are worst the the bullhead ticks. I know it's hard to believe. |
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| Probably grew 4 inches or more. Brad, send that measuring tape in for cal. lately??? Just kidding. Really does look like the same fish, and appears very healthy save for the sores. Wife caught a nice fish once with some of that on it(WI River) and we always wonderred what it was. Wierd stuff, but apparently not detrimental to survival. |
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