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Re: Nutrient limitation

> Date: Wed, 10 Dec 1997 15:19:27 -0600
> From: "David W. Webb" <dwebb at ti_com>
> Subject: Re: Nutrient limitation

<snip>(from Karen)
> I've found that cyanobacteria do contribute organic nitrogen to the system.
> The process involves the cyanobacteria rapidly consuming nutrients until
> they become nutrient limited in some way other than nitrogen.  At this
> point, they begin to die off and decay, contributing their nutrients back
> to the system.

But this is not nitrogen "Fixing", they are not pulling in nitrogen that
comes from outside the system (what a horrible thought ;)).  They only
give up nitrogen that was avalible within the aquarium to begin with,
they just "got there first".

Bjorn Straube

Bjorn Straube