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View of the Caribbean coral reef with the yellow tube sponge in Grand Cayman - Cayman Islands
Wide angle view underwater with sponges and rocks
Dendronephthya Soft Coral and Orange Cup Coral Tubastraea coccinea dominate the scenery at this colorful rock overhang. But there are Feather Star Fishes, Sponges and Colonial Ascidians too and a lot of Anthias and Damselfishes inbetween. \nIn the background there are Wrasses, Breams, Parrotfishes, Surgeonfishes and Butterflyfishes, a high biodiversity.\nTubastraea coccinea, a large-polyp stony coral, is not a reef building species. The coral extends beautiful translucent tentacles at night and in daytime on sunprotected areas of the reef like on this rock overhang. Tubastraea coccinea does not contain zooxanthellae in its tissues as many tropical corals do, allowing it to grow in complete darkness as long as it can capture enough food. \nTriton Bay, Westpapua, Indonesia 3°57'58.68 S 134°9'6.27 E at 9m depth
Colorful, picturesque coral reef at the bottom of tropical sea, great sea tube sponge, underwater landscape
an orange rubber sponge (Agelas clathrodes) in Guadeloupe (Caribbean, France)
Coral reef and Barrel sponge underwater at Little Cayman Island
Yellow and grey sponges on sea floor under kelp forest canopy. Location: Leigh New Zealand
Waigeo island, Raja Ampat, West Papoua, Indonesia
Erect Rope Sponge (Hyrtios erectos) on the deep in morning time, on blue water background, Red sea, Egypt
A green island full of trees seen from above and surrounded by blue water. Seen in the village of Funasdalen, Harjedalen, Sweden.
Petrosia hoeksemai (family Petrosiidae) is related to the giant barrel sponge Xestospongia testudinaria and occurs in the Indonesian Western Central Pacific in a depth range from 3 to 20m. \nNusa Laut, Indonesia, \n3°38'52.842 S 128°49'0.792 E at 9m depth
Seascape of reef with Branching Vase Sponge. Green Finger Sponge, Hydroids
3D rendering of a blue coral, a  marine invertebrate isolated on white background
Reef life with sponges, coral, brittle stars, and a split crown feather duster  worm invertebrate
View of the Caribbean coral reef with the yellow tube sponge and female diver in Cayman Brac island - Cayman Islands
A colony of large barrel sponges, Xestospongia testudinaria, grows on a reef slope near Komodo National Park, Indonesia. These large filter feeders are common throughout Indo-Pacific reefs.
Yellow tube sponge or Aureate sponge (Aplysina aerophoba) undersea, Aegean Sea, Greece, Halkidiki
Green tree coral (Tubastrea micranthus) in the marine protected area of Aliwal Shoal on the east coast of South Africa.
Axinella cannabina, a marine sponge, was found to be the source of axisonitrile, origin compound of isonitrile-containing secondary metabolites derived from marine organisms
Cesme, Turkey
Aerial view of giant barrel sponge in the coral reef of the Mexican Caribbean
Horizontal seascape close up of tiny white coastal sea shell barnacles on weather eroded backside rock Australia
Orange Stove pipe sponge off the coast of the island of Bonaire
Underwater photo - yellow sponge, school of fish old fishing net on colorful reef. Fish silhouette in the blue  background. Exploring and enjoying Beautiful Sea Life. Scuba diving -40m deep.  Underwater scene at clear mediterranean sea.  Scuba diver point of view. Greece, Europe.
Giant barrel sponge
Giant coral like Ganoderma lucidum.
Coral reef with great yellow sea sponge at the bottom of tropical sea on a background of blue water, underwater
At this very healthy reef at Karang Rembang, a sea mountain north of Tayandu Island, this very large Porites Corals dominates the scenery. Porites is one of the most common scleractinian coral species on Indonesian reefs. The average of coral growth rates ranged from 0.8-1.2 cm/year. So this coral must be very old. A Pinktail Triggerfish Melichthys vidua top left and several Damsel and Anthias fishes at the right side. \nKarang Rembang, north of Tayandu Island, Indonesia, 5°27'4.8145 S 132°23'54.7306 E at 16m depth
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