Where Do Demosponges Live?

Habitat. Most demosponges occur in all habitats at all depths. The Homoscleromorpha, Chondrosida, Agelasida, Dendroceratida, Halisarcida, and most Dictyoceratida occur mainly in the shallower parts of the oceans. The sclerosponges prefer cryptic (hidden) habitats.

Where are Demosponges located?

Their geographic distribution in the marine environment is from the intertidal to the abyssal zone; some species inhabit freshwater. Members of the Demospongiae are asymmetrical. Demospongians can range in size from a few millimeters to over 2 meters in largest dimension.

What does a Demosponge eat?

Most sponges feed on plankton, which is microscopic plant and animal organisms floating in the water. Some species benefit from photosynthesis through symbiosis with bacteria and a few types of sponges actually survive by preying on mollusks and crustaceans.