Selenastrum gracile is a single-cell micro-algae from tropical and subtropical climate. The alga is one of the most common phytoplankton in fresh water. It forms the basis of the food chain in ditches and lakes.
Selenastrum gracile is a single-cell micro-algae from tropical and subtropical climate. The alga is one of the most common phytoplankton in fresh water. It forms the basis of the food chain in ditches and lakes.
Indicator species
Like other (micro) algae, Selenastrum uses sunlight to get food. Through photosynthesis, it converts CO2 into sugars using the energy from sunlight. Selenastrum is eaten by zooplankton, which in turn are eaten by larger animals. Selenastrum reacts strongly to changes in the environment, such as an excess of nutrients or toxins. This makes him a good indicator for determining the health of an ecosystem.
Crescent moon
Selenastrum gracile has a unique sickle shape. Selenastrum reproduces using autospores. An autospore, or daughter cell, is produced inside the parent cell and has the same shape. Several of these autospores fit into the parent cell, making it look fragmented at times. Using this unique form of reproduction, the parent cell eventually divides itself into 2, 4 or 8 cells.