Here's why:
* Chytrids are the most primitive group of fungi, and many are found in freshwater and marine environments.
* They have flagellated zoospores, which are motile cells that help them disperse in water.
* Some chytrids are saprotrophs, decomposing organic matter in aquatic habitats.
* Others are parasites, attacking algae, plants, and even other fungi.
While other phyla of fungi may have some aquatic members, Chytridiomycota is the phylum where aquatic fungi are most prevalent.
