Art,
  It wasn't me who wrote, but the oysters can't clean up the Chesapeake
because we keep eating them!  Also, the chicken @%!^ (poop word, thank you
Frank Purdue suppliers) and other fertilizer runoff creates Frankenstein
bacteria that kills them and the fish. (This opinion does not reflect that
of this E-mail addressee, only heresay from bayside residents, who are
usually engorged with Blue crabs and beer). However, if we could enable 25
million oysters to remain viable in the Chesapeake Bay, jet ski operators
would fear for their lives. The filtering action could suck the bathing
trunks off them.  A new, hardier variety would appear, Crassostrea Speedo.
This is a dangerous situation that is being avoided by your elected
representatives.
Does this answer your question? (s)?
 
   The Questionable Answer Man
 
      George
At 12:42 PM 9/14/98 -0500, you wrote:
>Dumb me! I deleted before I got the name of the writer. But someone
>wrote about introduced clams or oysters that could filter San
>Francisco bay every 24 hours. How many critters would it take to do
>the job? Six? Nineteen? several million?  When SF is finally cleaned
>up, do they die or keep filtering? Could they do the same for
>Chesapeake Bay? If it can be done, why isn't it being done?
>    The Question Man
>
>