Here come the tigers...

At least they are sterile....but they are fast growing and ravenous feeders
 
Ugh... I don't understand. Tiger trout are stocked because...?
 
Boulders said:
Ugh... I don't understand. Tiger trout are stocked because...?
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... they don't reproduce. When stocked over wild populations they will not affect the gene pool. If you don't want them in a body of water any more, you just stop stocking them and wait a few years for the existing fish to die off.

I'm a wild trout angler. I'll fish some stocked trout water but not much that doesn't have natural reproduction with the chance of catching wild fish. I do, however, see some value in stocking. It spreads anglers out. It keeps a lot of water open to the public. It can also be a useful gateway drug.

If trout are going to be stocked, which they are, a case can certainly be made for stocking sterile fish. I know I've caught wild fish displaying digi-brown patterns. That wouldn't happen if fertile browns hadn't been stocked over wild populations. I'm not sure how much increased predation of wild juveniles occurs at the mouths of tigers/triploids but that seems the most significant negative possibility.
 
ROVERT said:
... they don't reproduce. When stocked over wild populations they will not affect the gene pool. If you don't want them in a body of water any more, you just stop stocking them and wait a few years for the existing fish to die off.

I'm a wild trout angler. I'll fish some stocked trout water but not much that doesn't have natural reproduction with the chance of catching wild fish. I do, however, see some value in stocking. It spreads anglers out. It keeps a lot of water open to the public. It can also be a useful gateway drug.

If trout are going to be stocked, which they are, a case can certainly be made for stocking sterile fish. I know I've caught wild fish displaying digi-brown patterns. That wouldn't happen if fertile browns hadn't been stocked over wild populations. I'm not sure how much increased predation of wild juveniles occurs at the mouths of tigers/triploids but that seems the most significant negative possibility.
Click to expand...

Very reasoned and sound opinion.
 
Boulders said:
Ugh... I don't understand. Tiger trout are stocked because...?
Click to expand...
Private clubs with private waters (RR) often stock tigers for their hybrid vigor, i.e. aggressive - easy for the members to catch.
 
ROVERT said:
... they don't reproduce. When stocked over wild populations they will not affect the gene pool. If you don't want them in a body of water any more, you just stop stocking them and wait a few years for the existing fish to die off.Good
Tigereye said:
Very reasoned and sound opinion.
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Good points. Time and further study will help us understand both the positive and negative impacts to wild browns and native brook trout populations

I'm a wild trout angler. I'll fish some stocked trout water but not much that doesn't have natural reproduction with the chance of catching wild fish. I do, however, see some value in stocking. It spreads anglers out. It keeps a lot of water open to the public. It can also be a useful gateway drug.

If trout are going to be stocked, which they are, a case can certainly be made for stocking sterile fish. I know I've caught wild fish displaying digi-brown patterns. That wouldn't happen if fertile browns hadn't been stocked over wild populations. I'm not sure how much increased predation of wild juveniles occurs at the mouths of tigers/triploids but that seems the most significant negative possibility.
Click to expand...
 
Only tiger I ever caught was a wild fish in a tiny creek that’s got wild browns and brooks. At the time, it had been 40 years since the last stocking. Now more like 70. Still has the wild trout, but I think that tiger was pretty much a unicorn.

They’re kind of cool looking, and in a way that makes palomino trout look all the more freakish. I wouldn’t mind catching them.

I think Utah stocks them on a semi regular basis.

Like palominos, pretty much just a curiosity that makes for a n ok fish story 30 years on.
 
Anyone have an idea of how the success rate for hatchery tigers compares to hatchery rainbow and brown?

I’m thinking in terms of X number of eggs were fertilized and 50% reach stocking size (10”?).

I know wild tigers are rare due to hen brown trout ultimately choosing a buck brook trout to mate with. In captivity all of the brown trout eggs should have a sufficient amount of brook trout milt.
 
Prospector said:
Anyone have an idea of how the success rate for hatchery tigers compares to hatchery rainbow and brown?

I’m thinking in terms of X number of eggs were fertilized and 50% reach stocking size (10”?).

I know wild tigers are rare due to hen brown trout ultimately choosing a buck brook trout to mate with. In captivity all of the brown trout eggs should have a sufficient amount of brook trout milt.
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It's low. I think on the order of 80 percent of eggs don't even hatch. EDIT: Looks like Wyoming has a whole procedure for getting a lot better survival https://wgfd.wyo.gov/Fishing-Update/Making-tiger-trout
also, looks like Virginia is having a go at them: https://wgfd.wyo.gov/Fishing-Update/Making-tiger-trout
 
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Success rate seems very low. Effort vs Reward?
 
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