SBC Users please read (didymo) - Mountain Buzz
 



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Old 02-18-2008   #1
 
Boulder, Colorado
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SBC Users please read (didymo)

So, if anyone has been to new zealand for boating, you probably know what this is, cause at least there, its kind of a big deal, here it should be as well.

Didymo, or rock snot, or didymosphenia is a diatom that lives in boulder and south boulder creek. Its a huge issue effecting biodiversity. Its native to the northern hemisphere, but popped up in new zealand. Its been messing all kinds of stuff up there, and there are serious fines for not taking preventative measures for transferring it. It forms this grimy/slimy layer of algea over the rocks in the stream bed, uses up all the oxygen (at least at night when its not photosynthesizing) and kills off all the stream life. Essentially its the aquatic version of kudzu.

the scary thing is, is that it can hang out on your boating gear for a couple weeks, and get transferred into other streams and rivers when you go paddles something else, which is most likely how it ended up in new zealand, either through the fishing or boating community.

So, here's what you do to prevent it. Its not as big of a deal with boating gear, as it is with felt-soled fishing waders fortunately.

So, when you take out of south boulder creek, as you're getting bitched at for walking down private property, check all of your gear for any clumps of algea or anything, and take them off, put them next to the stream bed, make sure you have it wiped off. If you happen to bring some home with you, don't wash it down the sink, it could pop up downstream of the sewers and start growing apparently. Soak it in hot water for at least a minute, and you should be good.

And spread the word, no one else is apparently. It'd be good to avoid getting this crap all over colorado, its definitely not good for water quality.

also, I know it might seem a little like a pain in the ass, but it is kind of a big deal. this messes up inverterbate life, fish life, other plant life, and general water quality, and its not like you can clean it out of a river or something.

So, thanks for hearing me out on that one, and, anyone up for wednesday afternoon, if not friday or later if its still going. I would love to get into my boat again.

-Rick
(720)565-6095

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Old 02-18-2008   #2
 
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Bummer! I had no idea it was here. Just read about it on the Blue as well.
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Old 02-19-2008   #3
 
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Rick, you need to do a bit more than that. I was just in NZ and went through a Dydimo instruction. It requires 24 hours minimum of complete dryness, NOT DAMP BUT 24 dry, also with hot water you need to add a bit of soap. Dish soap (liquid) will do as well. If it's indeed here, that is serious stuff. That shit if f'n NASTY NASY NASTY and it grows really fast.

Big time bummer.
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Old 02-19-2008   #4
 
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yeah, I've read both. One thing said you only needed to do that with the felt soled waders, and it really didn't hang out on the bottom of your boat as easily, but maybe better to play it safe huh?

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Originally Posted by thecraw View Post
Rick, you need to do a bit more than that. I was just in NZ and went through a Dydimo instruction. It requires 24 hours minimum of complete dryness, NOT DAMP BUT 24 dry, also with hot water you need to add a bit of soap. Dish soap (liquid) will do as well. If it's indeed here, that is serious stuff. That shit if f'n NASTY NASY NASTY and it grows really fast.

Big time bummer.
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Old 02-19-2008   #5
 
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Here is a snapshot of a cleaning station in NZ just outside of Hokitika that we found.

Kind of hard to read but here is what it says...

CHECK: Remove all obvious unwanted material from items that have been in contact with water.

CLEAN: Clean all equipment with a detergent solution ensuring surface contact for one minute. You can use a five percent solution of dishwashing liquid that you can buy for the supermarket.

DRY: Drying the item and leaving for at least 48 hours will kill Didymo.

Just FYI...

Didymo was found in the tailwaters of the Norris, Cherokee, Wilbur and South Holston hydroelectric dams in 2005. It is also common in Arkansas tailwaters.

Nasty stuff!
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