Giant clam (Tridacna derasa), detail of mantle. Has symbiotic algae, zooxanthellae, in the fleshy mantle which it exposes to the Great Barrier R

---

Giant clam (Tridacna derasa), detail of mantle. Has symbiotic algae, zooxanthellae, in the fleshy mantle which it exposes to the Great Barrier Reef, Queensland, Australia

---

Size: 5360px × 3509px
Photo credit: © Mark Spencer/AUSCAPE / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: algae, animal, animals, auscape, barrier, beneficial, biofilters, bivalves, bivalvia, born, burrowing, cardiidae, clam, clams, commensal, derasa, dinoflagellates, edible, fauna, filter-feeder, giant, great, hermaphroditic, invertebrate, life, male, marine, mark, molluscs, mutualism, mutually, partnership, reef, sea, shell, smooth, southern, spencer, symbiont, symbiosis, symbiotic, tridacna, underwater, veneroida, wildlife, zooxanthellae