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Swimmers Urinating In A German Lake May Be To Blame For Dead Fish


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#1 -Vintage Canuck-

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Posted 13 May 2012 - 04:32 PM

Urinating swimmers may be why 500 fish died:


At least that's what a group of anglers contend, blaming swimmers for the 500 dead fish that have turned up in a picturesque German lake near Hamburg, The Local reported.


"Swimmers who urinate in the lake are introducing a lot of phosphate," Manfred Siedler, a spokesman for an angler’s group, told Bild newspaper. "We're calculating half a liter of urine per swimmer per day."


Skeptics questioned whether the outcry was an attempt by fishermen to oust bathers – with whom they have long feuded, according to The Local – but are saying this could be possible.


IO9.com, a Gawker science blog posed the question, “Can anything as natural as peeing in a lake kill the fish?”


The answer, apparently, is yes.


The urine itself doesn’t harm the fish but sets off a series of environmental events that ultimately suffocate the fish.


First, the urine acts as a fertilizer for the blue-green algae in the water. Once they have consumed all the fertilizer, the algae continue sucking up available oxygen in the water, IO9.com explained. When the algae die and start to decompose, they further use up oxygen. That’s when fish start to die.


Bild reported that authorities have poured more than half a million dollars of an anti-phosphate agent called Bentophos into the lake, to no avail.


(Bentophos has been tested in artificial lakes that were shut down due to massive bacterial blooms.)


For now, the lake is closed to swimmers because of the high levels of algae (which can cause swimmer's itch), but the city's environmental authority is fighting the closure, The Local reported.


Kerstin Graupner, a spokeswoman for the environmental authority, told The Local that she blamed natural causes and ice-skaters.


"The ice-skaters make a noise that wakes the fish out of hibernation," Graupner said. "Then they can't breathe and freeze. That's a very common phenomenon."


Graupner’s agency called on a university in Hamburg to test the anglers’ theory. According to The Local, it appears the anglers may have a point – the scientists found anabaena algae blooms, which produce a toxin that ultimately restricts fish breathing.


The German lake isn’t the only place where officials worry about swimmers; signs at the Great Barrier Reef ask swimmers not to urinate in the water. Doing so apparently kills the corals, which grow in low nutrient waters.


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#2 jonnycanuck46

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Posted 13 May 2012 - 05:03 PM

:picard:
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Ephesians 2:7-9

"That in the ages to come he might show the exceeding riches of his grace in his kindness toward us through Christ Jesus.
For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast."

#3 Guest_AriGold_*

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Posted 13 May 2012 - 05:16 PM

You found that a story about some people peeing in a german lake as a news worthy enough to post on CDC ?

Come on man.... geeze....

#4 Froggy Fresh

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Posted 13 May 2012 - 05:25 PM

You found that a story about some people peeing in a german lake as a news worthy enough to post on CDC ?

Come on man.... geeze....


It's all about the +1 post count for him.

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Credit to (>'-')> for the amazing sig!


#5 :D

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Posted 13 May 2012 - 05:30 PM

Urine trouble now

#6 masutheakita

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Posted 13 May 2012 - 05:31 PM

You found that a story about some people peeing in a german lake as a news worthy enough to post on CDC ?

Come on man.... geeze....


did he piss you off?

#7 Tru_Knyte

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Posted 13 May 2012 - 05:32 PM

In b4

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#8 -Vintage Canuck-

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Posted 13 May 2012 - 05:39 PM

did he piss you off?


Well played!

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#9 canucks since 77

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Posted 13 May 2012 - 05:42 PM

The funny part is the woman who blames it on skaters. What an idiot.
Politeness is the first step to respect!

#10 Guest_AriGold_*

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Posted 13 May 2012 - 05:58 PM

did he piss you off?


Find it overly annoying that to pad his post count he puts up any story in the world for the +1, just like Pavel Datsyuk said above.

Whats that, "A cat got stuck in a tree in Berlin" well thats a news story...

Hes set to hit 30,000 posts in 2 years and 29,000 of those posts has been 1-4 word answers.... When i log on to CDC, the right side always has 2 of the 5 new posts from him. I enter a thread, he has a responce there. Hes always on CDC... I cant get away from him..

Edited by AriGold, 13 May 2012 - 06:00 PM.


#11 Scottish⑦Canuck

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Posted 13 May 2012 - 06:07 PM

In b4

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There are too many minorities! (Minorities....) At my water park....

Find it overly annoying that to pad his post count he puts up any story in the world for the +1, just like Pavel Datsyuk said above.

Whats that, "A cat got stuck in a tree in Berlin" well thats a news story...

Hes set to hit 30,000 posts in 2 years and 29,000 of those posts has been 1-4 word answers.... When i log on to CDC, the right side always has 2 of the 5 new posts from him. I enter a thread, he has a responce there. Hes always on CDC... I cant get away from him..


Most of them are in terrible threads. Like "Count to 100,000"...

#12 The Situation

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Posted 13 May 2012 - 06:34 PM

Most of them are in terrible threads. Like "Count to 100,000"...


Or in the GDT where he needs to remind everyone of a powerplay with a two character post.
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#13 -Vintage Canuck-

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Posted 13 May 2012 - 07:06 PM

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#14 Mr. Ambien

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Posted 13 May 2012 - 07:33 PM

OP sure has some obsessive people about his post count..

Why people even give a damn is beyond me.. good luck Captain Planet Postcount.

Edited by zaibatsu, 13 May 2012 - 07:33 PM.





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