Window diatom
Cymatopleura solea
The window diatom is a unicellular alga from the diatom group, characterized by its distinctive valve shape which is typically constricted in the middle. Its surface features prominent transverse waves, and the margins possess window-like openings (wing canals) that give it its name. It primarily inhabits the bottom of standing and slow-flowing waters and belongs to the microphytobenthos.
Details
Oxygen production
Produces oxygen as a byproduct of photosynthesis.
Habitat function
Inhabits sediment surfaces and provides food for microfauna.
Nutrient uptake
Uptake of dissolved silica for valve construction as well as nitrate and phosphate.
Food source for
Important food source for protozoa, rotifers, and small invertebrates.
Human use
Used in biological water monitoring to determine saprobiological status.
Ecology
Ecological role
Primary producer in aquatic ecosystems; converts inorganic substances into organic biomass and produces oxygen.
Natural predators
Zooplankton, small crustaceans, snails, and other benthic grazers.
Competitor species
Other benthic diatoms and green algae.
Ecosystem service
Oxygen production and foundation of the food web in inland waters.
Threats
Severe eutrophication, herbicide runoff, and extreme water pollution.
Scientific profile
Protection & threats
Main threats
Excessive hypertrophication, toxic pressure from agricultural herbicides, and physical habitat destruction due to bank stabilization and heavy sediment displacement.