© 2020 BBC. The Coral Reef Alliance urges people to educate others about the importance of reefs, and has free social media badges available that people can share to alert others to their support for protecting coral. An example of a fish sometimes caught through bottom trawling is orange roughy. Scientists study detailed maps that alert them to bleaching of coral reefs, which can be caused by rising sea temperatures and algal blooms. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. They do become more vulnerable to death however, especially if the stress continues for a long period of time. It is illegal to sell coral in some countries. As human population and development expands in coastal areas, the landscape is altered, increasing land-based source of pollution and threatening coral reef health. “Coral reefs are changing more quickly than corals can find each other and adapt naturally. Reduce stormwater runoff. When sediment and silt loosen because of development and construction and end up in the ocean, this can block sunlight and cause corals to die because they need sunlight to thrive. Earlier this year, Australia's Great Barrier Reef suffered a mass bleaching event - the third in just five years. This article has been viewed 162,985 times. There are 30 references cited in this article, which can be found at the bottom of the page. How do I stop people from throwing plastic into the oceans? They monitor barometric pressure, tide levels, air and water temperature, and other factors important to coral reefs. ", "This article was very nice, it helped me with my project. You want fish that were bred in captivity. Potato eating occurs when coral polyps expel algae that live inside their tissues. The coral polyps benefit from the photosynthate (product of photosynthesis) and in turn, the algae benefit from the nitrogen, phosphorous, and carbon dioxide waste produced, which it needs to grow. There is economic pressure in some countries to fish in this manner because coral reefs can provide as much as one-quarter of the fish eaten in some developing countries. Fishing lines, nets, and fishing hooks all cause damage to coral reefs. The BBC is not responsible for the content of external sites. In response, .css-yidnqd-InlineLink:link{color:#3F3F42;}.css-yidnqd-InlineLink:visited{color:#696969;}.css-yidnqd-InlineLink:link,.css-yidnqd-InlineLink:visited{font-weight:bolder;border-bottom:1px solid #BABABA;-webkit-text-decoration:none;text-decoration:none;}.css-yidnqd-InlineLink:link:hover,.css-yidnqd-InlineLink:visited:hover,.css-yidnqd-InlineLink:link:focus,.css-yidnqd-InlineLink:visited:focus{border-bottom-color:currentcolor;border-bottom-width:2px;color:#B80000;}@supports (text-underline-offset:0.25em){.css-yidnqd-InlineLink:link,.css-yidnqd-InlineLink:visited{border-bottom:none;-webkit-text-decoration:underline #BABABA;text-decoration:underline #BABABA;-webkit-text-decoration-thickness:1px;text-decoration-thickness:1px;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none;text-underline-offset:0.25em;}.css-yidnqd-InlineLink:link:hover,.css-yidnqd-InlineLink:visited:hover,.css-yidnqd-InlineLink:link:focus,.css-yidnqd-InlineLink:visited:focus{-webkit-text-decoration-color:currentcolor;text-decoration-color:currentcolor;-webkit-text-decoration-thickness:2px;text-decoration-thickness:2px;color:#B80000;}}researchers have developed a lab-grown strain of microalgae which is more tolerant to heat. Coral Bleaching is caused by climate change and high water temperatures which can lead to coral death. “We’ve seen some bleaching here, but it’ll take time to figure out if the algae will come back or if it’s gone forever.” With sea temperatures averaging 27C, the southern part of the reef is in a much safer space compared to the 35C further north. They're also important for people who live near the water and rely on the corals for food. Practice snorkeling before you venture anywhere near a coral reef, so you don't come into accidental contact with it. If you help pick up other people's litter on beaches, in addition to not littering yourself, you will help coral reefs. How can you and I make changes to our daily routine to reduce the risks of coral bleaching? Why should people work to protect the reefs? % of people told us that this article helped them. But they have also found healthy pockets. VideoFauci: US mass vaccinations could be days away. Conserve water. Using the information here, ""Don't purchase coral reef souvenirs," that phrase really comes to my mind because I thought of it just, "I think that this is one of the best articles that helped me. If you use less water, there will be less runoff and wastewater that will eventually find its way back into the ocean. To create this article, 26 people, some anonymous, worked to edit and improve it over time. By Dennis Normile Mar. Bleached corals continue to live but begin to starve after bleaching. Using a device like a snow cannon to shoot microscopic saltwater droplets into the air, scientists are hoping to reduce heat on the reef and slow the impacts of coral bleaching. Algae inside the reef provide its color, and bleaching of the coral occurs when algae are either missing or die. This is a huge problem for the animals that live there. How can poor water quality affect coral reefs? Volunteer in local beach or reef cleanups. 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