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The blue coral is the only extant octocoral with a massive skeleton, [3] which is composed of fibrocrystalline aragonite (calcium carbonate). It is a hermatypic zooxanthellaete species with either blue or green-grey polyps located within its skeleton, with each containing eight tentacles. Its colonies are either columnar, plate like or branched.
The genus consists of reef building corals, and is ancient and highly conserved. [2] The species heliopora coerulea is also known as "blue coral". [2] Species
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Elizabeth Reef image from NASA Millennium Coral Reef Mapping Project Middleton Reef image from NASA Millennium Coral Reef Mapping Project. Elizabeth and Middleton Reefs Marine National Park Reserve is a former marine protected area consisting of waters around Elizabeth and Middleton reefs located at the south-eastern end of the Coral Sea Islands, an Australian territory in the Coral Sea. [2]
This hard coral is common in shallow water exposed to surge, in the highest wave energy environments. [8] M. flabellata is less common and more restricted to shallow reef habitat, colonies of the species were found between 1 and 4 m depth. [9] The species is a broadcasting, simultaneous hermaphrodites that release egg-sperm bundles. [9]
The film was released in 2018 in France with the title Blue and with Cecile de France as its narrator. [9] Original trailers for the American release (under its formal title Dolphins) indicated a release date of Earth Day 2018. [13] Diving With Dolphins is a behind-the-scenes look at the making of Dolphin Reef. [8]
These Red Sea fish are listed as Reef-associated by Fishbase: . Acanthuridae. Acanthurus gahhm, Black surgeonfish; Acanthurus mata, Elongate surgeonfish; Acanthurus nigrofuscus, Brown surgeonfish
Clownfish with Pacific coral reef anemones at the Seattle Aquarium. Anemonefish are specialized coral reef fish that live within host anemones and are found in warmer waters in the Pacific and Indian Oceans, off northwest Australia, southeast Asia, and Japan. Native range of the Percula Clownfish. Data from AquaMaps.