Zoospore

A zoospore is a motile asexual spore that uses a flagellum for locomotion in aqueous or moist environments. Also called a swarm spore, these spores are created by some protists, bacteria, and fungi to propagate themselves. Certain zoospores are infectious and transmittable, such as Batrachochytrium dendrobatidis, a fungal zoospore that causes high rates of mortality in amphibians.