Sea sponge / Morska spužva

Description:

Chondrilla nucula is a sea sponge belonging to the Phylum Porifera. It is an amorphous shaped sponge that grows in flat, sometimes bulbous sheets in benthic communities.

Habitat:

It is sometimes found in marginal, stressful systems such as caves. Such sponges are white, lacking access to sunlight, and photosymbionts. It is known to be preyed upon by the hawksbill turtle, Eretmochelys imbricata. This one was found in the shallow intertidal zone on the North Adriatic coast.

Notes:

The sponge on the first photo is that dark cluster in the upper right corner and on the second photo is covered with sand.