[Coral-List] rebar and algae

Raymond Clarke rclarke at mail.slc.edu
Fri Dec 2 15:56:46 EST 2005


Hi Karl,

In many areas of the open ocean, algal growth is limited by iron
availability rather than the "usual" nutrients such as nitrogen or
phosphorus.  Perhaps your rebar is fertilizing the water.  I would be
careful about using galvanized rebar because the zinc can be poisonous.
Perhaps a plastic would work.

Ray Clarke
Sarah Lawrence College
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Dr. Raymond Clarke
Dept. of Biology
Sarah Lawrence College                          email:   rclarke at mail.slc.edu
1 Mead Way                                      phone:  914-395-2343
Bronxville, NY 10708                            fax:  914-395-2662

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