Out of the thread from which it migrated, this month's National
Geographic has a little article (half page with graphic) about dead
zones in the seas. The graphic shows the one in the Gulf of Mexico
but the article sez it's worldwide. These are areas where there is no
aquatic life, and are generally hundreds of miles long (i.e., not
small enough to have concentrated boat - of any size - activity).

Dead zones are created, it sez, from agricultural runoff, along with
the start-to-finish sequences of what happens. I see no dead zones
around even the most concentrated marine traffic, let alone
recreational boaters...

I leave you the prospect of debating why it is we have to have holding
tanks, pumpouts, Lectra (now Electra)-Sans, and the like under those
circumstances...

L8R

Skip

Morgan 461 #2
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