Top: scanning electron microscopy image, Bottom: Light microscopy images
Photo credit: Top and left image: Brian Bill, NOAA; Right image: J. Runyan, Washington Sea Grant
Skeletonema are circular diatoms approximately 2-21µm in diameter. External tubes join the cells together to form long chains. The spaces between the cells may be short or long. Each cell has two chloroplasts.
Skeletonema are found off the coast all over the world, except in polar seas.
For more information on Skeletonema 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 American 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.