Colorful Corals Beat Bleaching
This is scientific. Americans sixty seconds science. I'm Christopher Dodd. Yada warmer oceans are putting stress on corals and causing many of them to turn white or bleach but some corals under stress are instead becoming strangely colorful turning brilliant neon pink yellow purple or Blue Day. Gift this very vibrant coloration which really Blows your wife your vitamin heads. The University of Southampton's Coral Reef Laboratory in the UK. He said he was seeing photos. And reports of these brightly colored corals but no one knew was happening so his lab experimentally bleached corals to find out. I though it's important to understand that. Corals aren't really single organism. There are symbiotic. Duo a partnership between an algae and Coral. So it's a two completely different organisms working together to create something which they couldn't achieve by himself the algae live inside the coral where they get shelter and nutrients and the corals reap the benefits of photosynthesis but when the scientists exposed corals to warmer water. They watched as the corals symbiotic partners. The algae slowly abandoned the coral skeleton usually. That's what results in bleaching but in some cases without the photosynthetic algae there to absorb incoming light more of the light was bouncing around inside the coral's tissue and the researchers observed the corals producing neon pigments in response. The pigments seemed to be a natural sunscreen and those colorful areas appeared to attract the algae back the pink colored areas they repopulated fastest Symbionese and also the and had higher for synthetic efficiency which could be canessa indicator of the health. The results are in the Journal. Current biology says the flashy neon colors only appear with mild levels of stress. Too Hot in the corals can't cope but if you do happen to see corals flashing neon colors. It's a good sign. They're fighting back and fighting to be noticed by their algae partners. Thanks for listening for scientific American sixty seconds science. I'm Christopher Indonesia.