Credit: DAVID IRELAND/SCIENCE PHOTO LIBRARY

Caption: Bleached coral on a reef, contrasting with a healthy region of coral and a giant clam (Tridacna sp.). Bleaching occurs when corals expel their symbiotic algae, which normally inhabits their body tissues and is responsible for their colour. The algae photosynthesises and provides food for the coral, so its loss severely weakens to coral colony. Bleaching occurs in response to environmental stresses, including raised water temperatures. Healthy coloured corals are seen in the middle of the clip, with a giant clam seen at the end. Filmed on the Great Barrier Reef, Australia.

Release details: Model release not required. Property release not required.

Keywords: 4k, algae, australia, australian, bleached, bleaching, climate change, compared, comparison, coral, damage, damaged, damages, ecosystem, environment, environmental, giant clam, global warming, great barrier reef, healthy, hot, issue, life, mantle, marine, mollusc, normal, ocean, problem, raised, sea, stress, stressed, symbiosis, symbiotic, temperature, tridacna, tropical, uhd, under water, underwater, unhealthy, warm, water, white, zooxanthellae

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Bleached coral and giant clam

K004/8830 Royalty Free

Downloadable master

Duration: 00:00:45

Frame size: 1920x1080

Frame rate: 29.97

Audio: Yes

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 2.5G

Original

Capture format: Blackmagic

Frame size: 3840x2160

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.

 

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