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Hey some body get that bug spray again. The piss ant is back.
"Michael J. Black" wrote:
> Lake Superior not only has some of the best wreck diving in the world,
> it has very few zebra mussels compared to the other Great Lakes. Anyone
> wanna give a good explanation as to why this is? And before you say that
> the water is "too clean" or "too cold," consider that even the scientists
> don't know, but the low Calcium levels in the water may be part of the
> reason for the inability of zeebs to thrive in Superior. I have seen
> shallow wrecks (less than 60 ffw) in Lake Michigan become smothered with
> zeebs, beginning around 1995, obscurring engine details to the point of
> making the wrecks undesirable to dive. Deeper wrecks are relatively spared,
> but even depth doesn't stop zeebs or their relatives (Quagga mussels) from
> latching on. Improved visibility from these filter feeders is often
> exaggerated by divers, but there is no question that water clarity has
> improved wherever zeebs have taken hold, some consolation.
>
> While a few harbors, like Duluth, are beginning to develop a problem, it
> is fortunate that nearly all the preferred wreck sites in Lake Superior,
> like Whitefish Point, Isle Royale, Munising, the Keweenaw Peninsula, and
> the Apostle Islands, have been spared of zebra mussels so far. Hooray for
> Gitchee Gumee, the best of the best! May you stay that way forever.
>
> MJB
>
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