Diatoms were found on the Bay System, during the plankton tow of the RV Katy Field trip.
From a water sample from a beaver dam.
Paddles in this configuration, Never seen this in literature.
Photos contributed by Stephanie Thornton
Photos contributed by Linda Schier
Lake Merritt is a tidal estuary and has brackish waters
Diatoms are a major group of algae, and are among the most common types of phytoplankton. Most diatoms are unicellular, although they can exist as colonies in the shape of filaments or ribbons (e.g. Fragilaria), fans (e.g. Meridion), zigzags (e.g. Tabellaria), or stars (e.g. Asterionella). Diatoms are producers within the food chain. A unique feature of diatom cells is that they are enclosed within a cell wall made of silica (hydrated silicon dioxide) called a frustule....