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View Full Version : help me out guys and gals.do browns and rainbows interbreed?


chad134
03-07-2011, 09:27 PM
http://mail.aol.com/33356-111/aol-6/en-us/mail/get-attachment.aspx?uid=28257962&folder=NewMail&partId=4 (http://mail.aol.com/33356-111/aol-6/en-us/mail/get-attachment.aspx?uid=28257962&folder=NewMail&partId=4)

Heavynets
03-07-2011, 09:54 PM
All I know is what I read.

http://thefishingmaster.com/trout-fishing/trout-crossbreading-1597000.html

Corbo
03-08-2011, 08:17 AM
Rainbows spawn in Spring; Browns spawn during the Fall.

Out west Rainbows sometimes mate with cutthroats making cut-bows.

Brown Trout are "true trout" but actually closer to Atlantic Salmon; brook trout are actually "char" and not true trout... when the two are crossed (both fall spawners) the result is "tiger trout".

In Maine the hatcheries create "Splake" by crossing lake trout and brook trout; the offspring are sterile, the resulting fish grow fast and are most often stocked in very cold water lakes. These fish might do well in places like Calderwood, Chilowhee or Wilbur lakes and perhaps South Holston lake.

The "current world record" for Rainbow trout is a MONSTER created in a lab. These fish are created by treating fertilized eggs with chemicals that turn the fish into a Triploid fish that has an extra Chromasome.... they sorta look like rainbows but are total freaks that rarely occur in nature but the IGFA recognizes them as the real deal.

The State of Maine stocks these triploid rainbows in some rivers claiming they cannot reproduce and thereby out complete other trout (like brook trout) but they don't seem to survive very well in moving waters because they grow large bodies and have dwarfed fins.

wizard
03-08-2011, 08:51 AM
I just read the link on heavynets reply; interesting. now ANOTHER question for the locals; according to that article, "tiger" trout are the offspring when a brown and a brook cross. I know they do that in labs, but does that ever occur in the park? anyone ever caught a cross? according to the article, they do occur naturally from time to time although not all that common. apparently they spawn at similar times, and it's been known to happen out west and in New Zealand; how about here? is there a cross between our browns and our little SMNP brookies?

David Knapp
03-08-2011, 10:48 AM
I know that tiger trout do occur in the Park. I have not caught any of these fish myself but have seen pictures from reliable sources who have. It definitely happens, just not that often...

Crockett
03-08-2011, 11:29 AM
I know that tiger trout do occur in the Park. I have not caught any of these fish myself but have seen pictures from reliable sources who have. It definitely happens, just not that often...

One reason is their habitat doesn't cross over as much as rainbows and specks do it seems. It seems like the browns are more in the lower elevation waters or maybe I am imagining that.

TNBigBore
03-08-2011, 03:43 PM
In all the sampling I was in on in the Park and the CNF I never once saw a hybrid trout. I did see rainbows with slight "cutts" rarely. Most likely recessive traits from cutthroat/rainbow mixed hatchery stock released in the streams decades ago.

77punk
09-21-2011, 04:44 PM
this is an interesting thread. i thought i had heard of some rainbows spawning in the fall in gsmnp recently, but i read way too much to remember where i actually found anything. after reading this thread earlier today, i stumbled across something. while it does not discuss a brown/bow hybrid, or even pertain to the park, it does discuss fall spawning bows and increases the possibility of such a hybrid existing.

http://www.flyanglersonline.com/begin/hatchery/hatchery.php