Fred the Red Shirt wrote:
On Sep 3, 12:02 am, Gezellig wrote:
On Tue, 02 Sep 2008 18:39:05 -0400, Bryan Martin wrote:
The Great Lakes have a big problem with zebra mussels,

(snip)

The effect being...?

(-ppity snip)

ISTR they are also a nuisance in cooling systems such
as
those used for nuclear power plants.

Yes, they're quickly becoming a terrific problem for cities that drop a
pipe into the river to draw drinking water. They're tiny and have very
sharp-edged shells, and apparently glue to rival the toughest barnacle.
With no natural enemies, they've completely choked off water intake
systems and also eat up all the food for less aggressive native species.

And even a fishing boat with a gallon or two of bilge or a bait bucket
filled at the last lake can carry the damn things to a new waterway
several states away.