Scenedesmus costatum

Organisms Freshwater species Selenastrum capricornutum, Scenedesmus subspicatus, Chlorella vulgaris, Microcystis aeruginosa Anabaena flos-aqme, and Navicula pelliculosa Saltwater species Skeletonema costatum, Thalassiosira pseudonana, and Dunaliella Tertiolecta... 

Scenedesmus subspicatus Selenastrum capricomutum Skeletonema costatum Bacteria EC50 (mg/1)... 

The most commonly used species of freshwater algae are Raphidocelis subcapitata (former Selenastrum capricornutum), Desmodesmus armatus (former Scenedesmus subspicatus) and Chlorella sp., and the marine algae Skeletonema costatum and Phaeodactylum tricornutum. They are well known for their physiological properties and sensitivity to a couple of toxic elements and organic substances. Their optimal growth conditions are known as well as their reproduction rate, which is a validity criterion for the standardised tests. 

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