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Old 11-14-2011, 07:07 AM   #1
czechmate
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Default coho with nodules under skin

I caught a coho the other day and as I was releasing it, I noticed a lot of hard bumps under the skin. No camera... I will try to describe it.

These nodules were about 1/4 inch to 3/8 in diameter, spaced a couple of inches apart. There were probably a couple dozen on one side, little less on the other. The skin was raised up a bit where the nodule was and it may have been discolored a bit (greenish tinge). The fish was bright and sporty, like there was nothing wrong with it.

It was like something in a movie, where you would expect an alien burst out of the underskin pod....

Any idea what that may have been?

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Old 11-14-2011, 08:10 AM   #2
eyeFISH
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Default Re: coho with nodules under skin

Scale pocket disease.


Scale pocket disease (AKA salmon pox) caused by the protozoan parasite Myxobolus squamalis growing in the scale pockets. Often seen on sport-caught coho in the summer. Not yet reported on chinook. Like beauty, ugliness is only skin deep. Parasite harmless to fishes.
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Old 11-14-2011, 09:32 AM   #3
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Default Re: coho with nodules under skin

That's exactly what it looked like. Thanks, Doc.
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Old 11-14-2011, 01:27 PM   #4
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Default Re: coho with nodules under skin

I recently caught a b run nickle bright on the lewis fillet it out n there were wjat appeared to be puss pockets in the meat only about 5 in both fillets..looked like lil zits in in the meat that would pop white fluid inside..none in tail section of fish...they were not poxs caight a few w those two this year.....is the world of clean fish comin to sn end???
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Old 11-14-2011, 02:09 PM   #5
fish_stalker
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Default Re: coho with nodules under skin

Me too. I caught one out of the Toutle a couple months ago that had lumps like that all over its body. Freaked me out. I asked several other fishermen what it was & no one have ever seen anything like it.

When I fillet it, I dug into the meat to investigate. There were round white egg-like looking balls about 1/8" embedded in the meat. This fish had it bad so there were a lot of these 1/8" balls. I didn't know what it was so ended tossing the fish. Didn't want to take any chances.
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Old 11-14-2011, 02:18 PM   #6
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Default Re: coho with nodules under skin

I have observed this on both steelhead and chinook.

Last edited by FishBranch; 11-14-2011 at 02:21 PM.
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Old 11-14-2011, 02:32 PM   #7
Fish_N_Russ
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Default Re: coho with nodules under skin

Wow, a person could do a whole episode of "Monsters Inside Me" just on Fish parasites lol
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Old 11-14-2011, 02:46 PM   #8
Captain 40
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Default Re: coho with nodules under skin

Those are flavor pockets!
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Old 11-14-2011, 02:50 PM   #9
Spin84
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Wink Re: coho with nodules under skin

Quote:
Originally Posted by Fish_N_Russ View Post
Wow, a person could do a whole episode of "Monsters Inside Me" just on Fish parasites lol
Please don't.

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Originally Posted by Captain 40 View Post
Those are flavor pockets!
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Old 11-14-2011, 03:35 PM   #10
sandrail001
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Default Re: coho with nodules under skin

There is a small coastal COHO fishery that I would say 80-90% of the coho we catch have this. I have pics of fish with these but as you zoom it it gets harder to see them. Next fish I catch I will take an up close shot. I attached a pic of a Coho that had some, if you look on the belly you will notice a few. This fish did not have too many, but some are covered in them.
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Old 11-15-2011, 06:42 PM   #11
chinook503
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Default Re: coho with nodules under skin

I seen this first in eagle creek silvers, about 10 years ago. then i started seeing the same thing on hatchery trout at detroit lake. I wonder if it hatchery caused.
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Old 11-15-2011, 08:35 PM   #12
sandrail001
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Default Re: coho with nodules under skin

The Coho that we catch with this are all WILD.
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Old 11-15-2011, 08:36 PM   #13
Buck
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Default Re: coho with nodules under skin

Here is a photo of a wild coho I landed and released this fall that had salmon pox. I would say that 60-70% of the fish we landed all had the pox - all wild.

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Old 11-15-2011, 08:44 PM   #14
bankhog
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Default Re: coho with nodules under skin

Some of you are referring to tapioca disease, which is different, but still disgusting. I have caught many chinooks with tapioca disease. Springers and fall fish.
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Old 11-16-2011, 07:36 AM   #15
BlackBass
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Default Re: coho with nodules under skin

Quote:
Originally Posted by bankhog View Post
Some of you are referring to tapioca disease, which is different, but still disgusting. I have caught many chinooks with tapioca disease. Springers and fall fish.

Very true! Caught some fish out of the Siletz this year that had tapioca disease . Nothing in the meat that looked like white puss balls. I have seen this in the last few remaining Hatchery Coho. It seems to get worse as the fish ages.
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