was looking on a fishing site when they were talking about trout. i live in pa where some streams can get to warm for trout to live in. someone brought a redband. Redband trout can not only tolerate temperatures above 80 degrees (F), but can also feed and gain weight too.
http://www.dfg.ca.go...RedbandDesc.asp
if you google it theres alot more info.
warm water trout
Started by
Guest_marcq_*
, Oct 17 2009 09:57 PM
6 replies to this topic
#2
Guest_FirstChAoS_*
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Posted 17 October 2009 - 10:05 PM
Interesting article, i didn't know their were warmth tolerant trout. Though the idea a strain of rainbow trout hybridizing with rainbow trout being a problem seems odd to me. Oh my god, those rainbow trout cannot breed with rainbow trout, it'd ruin the fishery. (yes, i do assume this would limit their heat tolerance of their offspring, but still it seems odd).
#3
Guest_fundulus_*
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Posted 17 October 2009 - 10:20 PM
The thought might be, well, we've already ruined lots of trout fisheries, why not create and release another bunch of hybrids? Different historic trout and salmon populations are (were?) genetically distinct with adaptations to very local conditions so genomes matter (except when they don't...).
#4
Guest_marcq_*
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Posted 18 October 2009 - 01:31 PM
they would be easer to put in a tank. most people would not need a chiller. and they stay smaller than other trout.
#5
Guest_nativeplanter_*
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Posted 19 October 2009 - 11:33 AM
(yes, i do assume this would limit their heat tolerance of their offspring, but still it seems odd).
This would exactly be the concern. Especially since the trout are most likely managed for sportfishing. If the fish in the area were to become less heat tolerant, then the quality of the fishery would decline. I don't know what that area is like, but if fishing is popular there, then a lot of people would be upset if that happened.
#6
Guest_smilingfrog_*
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Posted 21 October 2009 - 02:42 AM
This would exactly be the concern. Especially since the trout are most likely managed for sportfishing. If the fish in the area were to become less heat tolerant, then the quality of the fishery would decline. I don't know what that area is like, but if fishing is popular there, then a lot of people would be upset if that happened.
I think the link was just pointing out some of the problems facing this particular variety of trout. Hybridizing with introduced rainbows is likely swamping the unique genetics of this fish. Eventually the hybrids that remain are practically indistinguishable from the "regular" rainbows. The unique genotype/phenotype of the redband are lost. If I'm not mistaken this has happened with some populations of cutthroat trout and some other trout species/subspecies in the western states when rainbows were introduced.
#7
Guest_critterguy_*
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Posted 12 November 2009 - 02:08 PM
Be neat to get some fingerlings of these!
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