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Hard coral reef system in the pacific ocean

Close up view of textured dry coral on shore of red sea

sea anemone close-up underwater sea anemone

Beautiful sea flowers in underwater world with corals

Detail of a Diploastrea coral colony growing on a beautiful reef in Raja Ampat, Indonesia. This tropical region harbors epic marine biodiversity and is known as the heart of the Coral Triangle.

$The colonies of Galaxea astreata are submassive, columnar or encrusting and commonly exceed 2 metres across in turbid water. Corallites sometimes vary greatly in size depending on where they occur on the colony; they are usually 3-4.5 millimetres diameter. Usually eight to twelve septa reach the corallite centre. \n\nTentacles are seldom fully extended during the day like here: the photo was taken at 3:30 PM. \n\nTriton Bay, Indonesia, \n3°53'59.6184 S 134°6'23.8608 E at 10m depth$

3D Illustration of a red coral isolated on white background

Close-up of brain coral in a shallow reef lagoon

Sarcophyton trocheliophorum, Soft coral Sea life Macro, close up. Mushroom leather Coral reef Underwater photo Scuba Diver Point of View Red sea

POV - you are dreaming away while looking at the peaceful scene under the sea

A reef-building coral growing on a reef in Indonesia has lost its symbiotic zooxanthellae which is known as coral bleaching.

Deep water mushroom soft coral, Heteropolypus ritteri is a genus of soft corals in the family. Monterey Bay, California. Alcyoniidae.

Dry coral isolated on a white background

$Diploastrea heliopora occurs in the tropical Indo-West Pacific Ocean in a depth range from 3-15m from the Red Sea and East Africa to Western Australia, to the Ryukyu Islands and Fiji. This is one of the most easily recognised and least variable of all massive corals. The diameter of a single corallite is 8-10 millimetres. Diploastrea heliopora forms dense, robust, dome-shaped coral colonies. This slow-growing (2 to 6 mm/year) coral has the potential to yield continuous paleoclimate records spanning up to 1000 years for the warmest waters on Earth, the Indo-Pacific Warm Pool, and has a long fossil history as a single recognizable species. \nThe foto was taken in day time, the tentacles are retracted, as they extended only at night. \nSoanggi Island, Banda Sea, Indonesia 4°19'34.3773 S 129°42'21.3856 E at 14m depth$

Coral reef in South Pacific, soft coral extended and feeding in Indonesia

Sea life Salp and Orange Gorgonian coral from scuba diver point of view

background and texture of a coral reef on the beach

$Close-up of Staghorn Coral Acropora sp. Typical for Acropora species: Always a polyp on top of every branch. Staghorn corals are among the fastest growing corals on reefs, and are excellent reef-builders. Staghorn corals often out-compete all other corals in shallow tropical reefs, however, their speed of growth (which can be up to 10 to 20 centimetres a year is balanced by the fragility of some of the structures, as they are easily damaged in storms allowing other coral species a chance of growth. Even if well hidden, the Coral Shrimp Vir philippinensis can be identified. Ngerchong Island, Palau, Micronesia, 7°6'57.48\$

Detail of hard coral in brown. Closeup photo of the underwater life of a coral reef, perfect for texture or science background

Marine coral texture of the atlantic ocean

Abstract Sea life Orange Gorgonian coral from scuba diver point of view Close up, blue background. Underwater photography

Coral reefs are built from stony corals, which in turn consist of polyps for education in nature.

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