Photo credit: Sarka Martinez, Orcas Island
Cylindrotheca are solitary pennate diatoms, approximately 30-400μm in length and 2.5-8μm wide. This fusiform shaped cell has narrowing long and thin ends. These ends may curl slightly in either the same or opposite directions. Two chloroplasts are located in the middle of the cell.
Cylindrotheca are cosmopolitan.
For more information see: A Taxonomic Guide to Some Common Marine Phytoplankton, by Rita Horner (Biopress Ltd. 2002
SoundToxins, a diverse partnership of Washington state shellfish and finfish growers, environmental learning centers, Native tribes, and Puget Sound volunteers, is a monitoring program designed to provide early warning of harmful algal bloom events in order to minimize both human health risks and economic losses to Puget Sound fisheries.