Invisible Oceans Founder's Collection: Invisible Oceans #3: Casseopia I

Common amongst the warm shallows of mangrove swamps, Casseopia, the upside down jellyfish, specialises in harbouring algal cells in its up-turned tentacles which carry out photosynthesis and dispense some of that energy to the Jellyfish. It can also catch small crustacea with mildly stinging tentacles. Frequently, commensal shrimps live among the tentacles. What advantages are exchanged are not fully understood. Some lagoons can be carpeted by this Jellyfish.

Lizard Island, Australia (2006)

Nikon F4 | Nikon Micro Nikkor 105mm f2.8 | Fuji Velvia