Oedogonium
	Oedogonium usually grows in cold, shallow freshwaters in the littoral zone and in nutrient-rich wetlands. It is often attached to submerged plants, rocks, or other surfaces, and sometimes forms loose floating mats. Oedogonium filaments are often covered with epiphytic diatoms or other microalgae. Blooms can form when nutrients are readily available. Oedogonium, along with Cladophora, Stigeoclonium, and Ulothrix, can significantly clog irrigation canals when growth on the concrete surfaces becomes excessive. However, Oedogonium is much more easily controlled by copper treatments than other mat-forming green alga.
The filaments may be attacked by parasites, such as the aquatic fungi called chytrids and the unusual dinoflagellate genera Stylodinium and Cystodinedria. The amoeboid stages of Stylodinium can consume the entire contents of Oedogonium cells within a few minutes.