Cyanobacteria, blue-green algae
This key is designed to help students and citizen scientists identify the major types of cyanobacteria (blue-green algae) found in freshwater lakes, ponds, and streams. The key includes annotated digital images that illustrate each descriptive choice. Most images were collected using a microscope, so scale bars were added to indicate the relative size of the cells, colonies, and filaments. For comparison, the width of a 12 pt Times Roman period is ~300 um.
The online key works with most web browsers or can be downloaded as a zip file and used locally. The key has been tested on Chrome, Firefox, and Edge browsers; it does not work on Internet Explorer.
Matthews, Robin A. and Matthews, Geoffrey B., "Cyanobacteria Key" (2018). Environmental Sciences Faculty and Staff Publications. 52.
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