Bleached Montipora undata coral

Bleached Montipora undata coral

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Caption: Bleached Montipora undata coral on a reef. Coral bleaching results when the symbiotic zooxanthellae (single-celled algae) are released from the original host coral organism due to stress. A change in environmental conditions, such as high water temperatures, can cause this. Corals depend on the symbiotic photosynthesising unicellular zooxanthellae algae, which live within their tissues, for the major part of their food. When the zooxantheallae are expelled, the coral loses its pigment, leading to a bleached or completely white appearance. Photographed off Raja Ampat, West Papua, Indonesia.

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Keywords: animal, animals, anthozoa, anthozoan, anthozoans, aquatic, asian, biological, biology, bleached, bleaching, cnidaria, cnidarian, cnidarians, coelenterate, damage, damaged, environmental science, fauna, hard coral, indo-pacific, indonesia, indonesian, invertebrate, invertebrates, marine biology, montipora undata, nature, ocean, papuan, raja ampat, reef, scleractinia, sea, south-east asia, southeast asia, stony coral, stress, under-water, underwater, west papua, zoological, zoology

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