Rotifers – Rotifera

Abstract

Rotifers (wheel animals) are widespread throughout the world. They comprise a remarkably diverse group concerning their form, shape and species number, as well. More than 1,000 species are known from Europe. Only some genera are present in the sea; the majority occurs in freshwaters. These latter species are abundant animals of all kinds of wet or moist habitats, including such incredible places like mosses and lichens, growing in roofs or even gutters. Should the habitat completely dry out, they contract, encapsulate and begin a dormant life (anhydrobiosis). In this state of suspended animation, rotifers may remain alive for several months or even years. When rehydrated, they quickly resume their activity within a few hours.