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Coral diseases that are distributed throughout an area can have a big impact on other parts of reef communities. Not only do coral diseases impact the overall accretion and surface area of the coral, it also affects coral reproduction, the diversity and prosperity of reef species, topography of structures, and community dynamics. [1]
It is a disease that can destroy miles of coral reef fast. A disease such as white plague can spread over a coral colony by a half an inch a day. By the time the disease has fully taken over the colony, it leaves behind a dead skeleton. Dead standing coral structures are what most people see after disease has taken over a reef.
Many scientists think that at just 1.2C of warming above preindustrial level, the world has already passed a key threshold for coral reef survival. They expect between 70% and 90% of the world's ...
Coral reefs around the world are experiencing global bleaching for the fourth time, top reef scientists declared Monday, a result of warming ocean waters amid human-caused climate change. Coral ...
The worst so far was the Great Coral Bleaching Event from 2014 through 2017, when already warm sea temperatures were increased El Niño, causing heat stress to spread across the world and into ...
Yellow-band disease is a bacterial infection that spreads over coral, causing the discolored bands of pale-yellow or white lesions along the surface of an infected coral colony. The lesions are the locations where the bacteria have killed the coral's symbiotic photosynthetic algae, called zooxanthellae which are a major energy source for the ...
Coral reefs may therefore be "squeezed into a narrower latitudinal distribution by ocean warming in the tropics, and ocean acidification in cooler oceans." [2] This phenomenon has been referred to as the global poleward migration of coral species - who are seeking cooler climates - or to the growth of coral in temperate regions.
In 2018, the United Nations Intergovernmental Panel on Climate Change estimated that 70% to 90% of the world’s coral reefs would disappear if global average temperatures crossed a threshold of 1 ...