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Freshwater Sponge (Spongilla lacustris) Spongillidae Freshwater Underwater
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
natural sponge isolated on white background
Sea life  Orange  coral from scuba diver point of view
Dictyota fasciola  algae from Mediterranean rocky coast
Sea sponges in underwater caves in Bulgaria, Fauna of the Black Sea
The Mediterranean seagrass (Posidonia oceanica) and the invasive red seaweed (Asparagopsis armata) in La Ciotat (South of France).
Corals in the form of tentacles on a reef.
Balanophyllia elegans, the orange coral or orange cup coral, is a species of solitary cup coral, a stony coral in the family Dendrophylliidae. An azooxanthellate species, it does not contain symbiotic dinoflagellates in its tissues. Monterey Bay, California.
Natural Bath Sponge Isolated on White
The island of Oahu, in the state of Hawaii, from old camera film in 1987.
HD picture of Natural sea sponge
High-hat Triplefin Enneapterygius tutuilae occurs in the tropical Indo-West Pacific from East Africa to Micronesia, Line Islands, and Society Islands, and Taiwan to Australia, including Papua New Guinea, Line Islands and Society Islands, Taiwan to reefs of Coral Sea and New Caledonia in a depth range from 0-55m, max. length 4cm. Adults are found in various reef habitats, but often on sponges or reef outcrops and in intertidal pools and on corals and rocks. The species feeds on zooplankton. \nEven if it is the most common and most widely distributed among Enneapterygius species, this tiny and well camouflaged fish is rarely encountered. \nTriton Bay, Kaimana Regency, West Papua Province, Indonesia \n3°54'41.0503 S 134°7'18.2052 E at 4m depth
Brown natural sponge on white background. Isolated.
Giant red coral groups
Corallina Red Marine Algae, Corallina officinalis, Salt Point State Park, Sonoma County, California, Rhodophyta
Black Sea, Hydroids Obelia, (coelenterates), Macrophytes Red and Green algae
Sea life  Orange Gorgonian coral from scuba diver point of view
Sea sponge from the Mediterranean Sea
This Red Gorgonian Coral Beauty, a Knotted Fan Coral Melithaea ochracea lives at a good place with remarkable current, a good position to get enough food! The species occurs in the tropical Indo-West Pacific in a depth range from 3-18m. South-East of Misool Island, Indonesia, 2°12'37\
macro coral red soft
Costa Brava sea floor, calcareous algae
Vibrant large pristine coral reef system in the Coral triangle
The landscape of the beaches of Bali, Pulo Aceh at low tide near dusk with colored reefs and sunset
close-up of coastal algae
Sea life  Pink, rose colored texture coral symbiotic relationship with stone Aquatic organism Scuba diver point of view
Blurred coral texture as a background.
A close-up of a sea fan Plexauridae sp.: \nAmong the gorgonian families, Plexauridae is one of the richest in genera and species. \nThis family is especially well represented in temperate and tropical waters. \nWithin Octocorallia, the family Plexauridae is characterised by mostly arborescent colonies. \nTriton Bay, West Papua Province, Indonesia,\n3°54'52.062 S 134°7'21.384 E at 15m depth
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