What is this thingy ma'bobber?

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kevinb
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What is this thingy ma'bobber?

Post by kevinb » Sat Dec 04, 2010 10:47 am

I've seen these in a few rivers,never gave them a 2nd thought.
While we were staying in Leavenworth,this "thingy ma'bobber" was about a 100yards up stream from our cabin on the Chiwawa River.
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My only guess is maybe providing drinking water?
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sellis_414
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RE:What is this thingy ma'bobber?

Post by sellis_414 » Sat Dec 04, 2010 10:51 am

I believe its a fish catcher. They have them on the Wenatchee too between cashmere and monitor.
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Big D
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RE:What is this thingy ma'bobber?

Post by Big D » Sat Dec 04, 2010 10:57 am

I'll second that. It's a fish trap.
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RE:What is this thingy ma'bobber?

Post by cogitator » Sat Dec 04, 2010 2:37 pm

It's a fish trap to count the outgoing smolt
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Matt
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RE:What is this thingy ma'bobber?

Post by Matt » Sat Dec 04, 2010 5:26 pm

The technical term is a Rotary Screw Trap. It is corrugated on the inside and rotates with the speed of the current to create a suction which brings in fry and smolts for biological survey. They take species and length measurements and then release them. It helps calculate overall escapement, etc. When the trap is in operation the big "cone" portion is lowered into the water and begins to spin.

There is one on the Snoqualmie and the Skykomish, and I know the Puyallup has one too.
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RE:What is this thingy ma'bobber?

Post by CRW » Mon Dec 06, 2010 5:55 pm

There was one on the Nooksack also, I always wondered what that was.
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RE:What is this thingy ma'bobber?

Post by BassDood » Tue Dec 07, 2010 12:05 am

Alien in nature. Disregard what that the others have said.
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kevinb
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RE:What is this thingy ma'bobber?

Post by kevinb » Mon Dec 27, 2010 11:31 pm

Thank you fellas,much appreciated. I've seen these on a few rivers but never knew what they were.
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kevinb
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RE:What is this thingy ma'bobber?

Post by kevinb » Mon Dec 27, 2010 11:31 pm

BassDood wrote:Alien in nature. Disregard what that the others have said.
Ha,good stuff. That was my second guess:-#
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RE:What is this thingy ma'bobber?

Post by curado » Mon Dec 27, 2010 11:32 pm

its good to see those on the chiwawa.
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RE:What is this thingy ma'bobber?

Post by racfish » Tue Dec 28, 2010 5:45 am

I see those on the Deschutes all the time. It catches fish to count.
When youre up to your rear end in alligators,its hard to remember that the initial plan was to drain the swamp.
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kevinb
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RE:What is this thingy ma'bobber?

Post by kevinb » Wed Dec 29, 2010 8:39 pm

curado wrote:its good to see those on the chiwawa.
Just curious,is the Chiwawa having problems? I noticed in the regs that the river is closed,then add in a fish counter
and I can only assume that their must be low numbers
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sellis_414
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RE:What is this thingy ma'bobber?

Post by sellis_414 » Wed Dec 29, 2010 9:51 pm

I have heard the salmon runs haven't been great for that stream. They were working on the run up there to build it up and make it better... So maybe their success is occuring. I honestly have never heard of the Chiwawa being open, as long as I have been around (or payed attention).
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sellis_414
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RE:What is this thingy ma'bobber?

Post by sellis_414 » Wed Dec 29, 2010 10:04 pm

I did some research and this is what I found....

1999 was when it closed due to the Bull Trout hitting the endangered/protected species list.

See link for more info if curious.

http://www.midcolumbiahcp.org/Chiwawa%2 ... 20Main.htm
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RE:What is this thingy ma'bobber?

Post by kevinb » Thu Dec 30, 2010 5:23 pm

sellis_414 wrote:I did some research and this is what I found....

1999 was when it closed due to the Bull Trout hitting the endangered/protected species list.

See link for more info if curious.

http://www.midcolumbiahcp.org/Chiwawa%2 ... 20Main.htm
Thank you sellis,much appreciated and very informative. We're headed back up there in February.
Might have to head back over to Fish Lake!
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