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This image shows the effects of Coral bleaching and disease. This stunning Staghorn coral (Acropora) is beginning to show the signs of coral bleaching.  The tips are turning white.  This could be as a result of pollution, disease or global warming.  The location is Phi Phi Islands, Andaman Sea, Krabi, Thailand.
Animal
Polyp stony coral Acropora gemmifera undersea, Red Sea, Egypt, Sharm El Sheikh, Nabq Bay
Waigeo island, Raja Ampat, West Papoua, Indonesia
Underwater scenes on Acropora SPS coral colony into the sea
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\
Brain coral is a common name given to various corals in the families Mussidae and Merulinidae, so called due to their generally spheroid shape and grooved surface which resembles a brain
Underwater nature background of healthy coral garden reef ecosystem in natural sun light. Great Barrier Reef, Queensland, Australia.
Underwater photo of pale corals with fish from the Maldives
The landscape of the beaches of Bali, Pulo Aceh at low tide near dusk with colored reefs and sunset
Close-up of finger coral, Acropora humilis, underwater in the lagoon of Bora Bora, south Pacific ocean, French Polynesia
Bunte Unterwasserwelt
coral reef with yellow finger coral at the bottom of tropical sea
Next to Tayandu Island there are Karangs, shallow areas that reach a few meters below the surface. They are full of life. This one is a long shallow reef reaching 5 to 8 meters at the shallowest. The coral community was dominated by large table Acropora with huge Porites colonies scattered about, and large patches of Isopora. This large Acropora coral is a good shelter for many fish species like Blue-Green Chromis Chromis viridis, Reticulated Dascyllus  Dascyllus reticulatus, Webers Chromis Chromis weberi, Threadfin Anthias Pseudanthias huchti, Ternate Chromis Chromis ternatensis, Scaly Chromis Chromis lepidolepis, Leopard Wrasse Macropharyngodon meleagris and more. Moorish Ideol Zanclus cornutus on top. \nKarang Huisman, Tayandu Island, Indonesia, \n5°28'41.72 S 132°13'21.31 E at 13m depth
Macro photography of hard corals. From a scuba dive.
A school of fish plays in Giant coral like Ganoderma lucidum.
Polyp stony coral Acropora gemmifera undersea, Red Sea, Egypt, Sharm El Sheikh, Nabq Bay
Coral bleaching occurs when corals expel their symbiotic algae, known as zooxanthellae, due to stress caused by factors such as high water temperatures, pollution, or ocean acidification. This leads to the corals losing their vibrant colors and becoming pale or white. Without the zooxanthellae, the corals are more vulnerable to disease and may ultimately die. Coral bleaching is a major concern for coral reefs around the world, as it can have a devastating impact on the entire marine ecosystem that relies on these important structures.
Round Finger coral on an underwater reef Andaman sea, Thailand. School of tropical Golden Damselfish surround it.
detail of nice coral reef life in the Egypt, Safaga
A massive cluster of mature staghorn coral in shallow waters in the Solomon Islands.
Palmyra Atoll plate coral
Nusa Laut is the smallest inhabited island in the Lease Islands group east of Ambon, in Indonesia's Maluku province. Overall the coral community of Amet Reef is healthy and has a high resilience potential. Acropora table corals grow to enormous dimensions here. Big Longnose Butterflyfish Forcipiger longirostris in front at the left side.\nAmet Reef, Nusa Laut, Indonesia, 3°38'52.8396 S 128°49'0.7902 E at 7m depth
Finger coral close-up, Acropora humilis, Tahiti, Pacific ocean, French Polynesia
Bunte Unterwasserwelt
Coral is petrified, white. Close-up photo
Giant coral like Ganoderma lucidum.
Evidence of coral bleaching on reefs in El Nido, Palawan
Bright coral garden in crystal clear water inhabited by tropical reef fish. Photographed while snorkeling in Tonga.
Free Images: "bestof:Acropora latistella, Samoa A. 2.gif es Acropora latistella Samoa Americana 2014 http //www botany hawaii edu/basch/uhnpscesu/htms/NPSAcorl/fish_pops/acropori/..."
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