Earth breathes carbon dioxide in and out over many different time scales; there are daily inhales, seasonal exhales, as well as deep breaths over much larger time scales. Therefore, to get accurate measurements of carbon dioxide concentrations on Earth, there has to be long term periodic sampling and data collection in both the ocean and the atmosphere. Read More

Hi Algae Friends,

We are finally getting to publishing our LESSON PLANS!!!    This first one is a toxicology plan about how much oil (or any other chemical really) it would take to kill algae.   

Do you have any ideas for a lesson?  Let us know how we can help!


What does spirulina look like?

Arthrospira platensis, aka spirulina, is a helical colony or tricome.  Below are some of the features we use to describe the tricome.

Pitch:  Similar to wavelength.  It is the distance between two peaks in the tricome. The pitch can be between 7-50.  

Colony Length:  The length of the entire colony.  This length is usually 20-300nM.  Harvestable spirulina is usually 60-200nM in length.

Diameter:  This is the width of the individual cells of the tricome.  The diameter is usually 4-7nM.