Rainbow Trout w/ boils or lumps

[maclennanchris]

Hey, just came home from fishing today. Great day for fly fishing. Anyhow we were catching rainbows, and i would say 90 % of them had weird boils or lumps. They were not red or open like a sore. But they were large lumps under the skin. Ill post this pic and you will have to look close, sorry camera phone and all. Would love to know what this is????

[greylynx]

Put the fish on ice and phone your regional fisheries biologist, Tell him what you have. Since you can't preserve the fish, I suggest you open the fish and take as many pictures as you can of the kidney which is that red thing next to the spine on top. Take pictures of the guts. The reason for this is to check the spleen.

This might be just a harmless parasite, but given the sores so close to kidneys I suggest that this issue be looked after in a closer manner.

For you SRD lurkers, This could be BKD.

[maclennanchris]

well we caught about 12 fish and 10 of them showed these boils on them. Not sure who to call about it...it was at Chickakoo if that helps. Only caught Rainbows no Brookies.

[greylynx]

Originally Posted by maclennanchris

well we caught about 12 fish and 10 of them showed these boils on them. Not sure who to call about it...it was at Chickakoo if that helps. Only caught Rainbows no Brookies.

Call 780 944 0313 tommorow.

Show them your pictures.

Chickakoo is an enclosed water body, and a sample netting will show what is in there pretty quick.

I figured you may have hauled some of these trout from a stream west of Edmonton. Thank goodness you didn't.

Keep us advised what is crawling inside those Chickakoo trout.

[Thundercatcher]

whie you are talking about Chickakoo. What did you use to catch them guys?

[Doc]

Happens every year on a lot of Alberta's pothole lakes. It's a parasite very similar to swimmers itch. Waterfowl and snails are the intended hosts, trout are not as they are not native to our potholes. These bumps on the trout will get much worse as the waters warm and then will go away when the water gets cold again. The parasites are not harmful to humans but it is recommended that fish should be cooked thoroughly. If you see black spots in the flesh, these should be cut out before cooking as it's a bacterial infection caused by the parasites. The parasites are pretty much harmless to the trout unless the parasites overwhelm the trout and the infections are numerous.

I blogged on it a couple of years ago.

http://docshouseofblog.blogspot.com/...mers-itch.html

[tacklerunner]

Originally Posted by Thundercatcher

whie you are talking about Chickakoo. What did you use to catch them guys?

Looks like a black Kaufmann Stone in it's mouth

[maclennanchris]

nope, bead head woolly bugger