What kills a freshwater pond?

adwright at iastate.edu adwright at iastate.edu
Thu Dec 10 16:40:18 EST 1992

In <9212092256.AA24012 at net.bio.net> marder at AGRI.HUJI.AC.IL writes:

>a copper penny will deccelerate algal blooms

>----------------------------Original message----------------------------
>In article <92342.211502PINHC at CUNYVM.BITNET>, David Pincus <PINHC at CUNYVM.BITNET>
> writes:
>> Anybody out there know what causes ponds to lose oxygen?
>Respiration by algae and other organisms.

>> What causes algal blooms in ponds?
>Nutrients - nitrogen (as nitrates or ammonia is a significant one).

>> What pollutants accellerate this?
>(See above)

What about phosphates? There is only one limiting factor for these algae blooms
I always thought it was phosphate. 

>                                 '      Jonathan B. Marder
>Internet: MARDER at AGRI.HUJI.AC.IL |      Department of Agricultural Botany
>Bitnet:   MARDER at HUJIAGRI        | /\/  The Hebrew University of Jerusalem
>Phone:    (08 or +9728) 481918   |/  \  Faculty of Agriculture
>Fax:      (08 or +9728) 467763   /      P.O.Box 12, Rehovot 76100, ISRAEL

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