Re: [vernalpool] Algae

 

Here's my take on the algae: it has been warmer than usual this spring and with no leaves on the trees there is also plenty of light. With few grazers the filamentous algae can take off. The water itself is clear due to the presence of zooplankton which keeps the phytoplankton at bay. There has also been little precipitation to stir the ponds or for there to be much runoff. There is no shortage of nutrients in the ponds and so given the right conditions the filamentous algae grow. Might make for an interesting classroom experiment - vary the amount of light, or the amount of zooplankton or dilute the water. Just a thought.

Steve

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