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Mar. Coral reefs are under severe threat from many sources, including mass coral mortality events caused largely by sea surface temperature (SST) anomalies associated with global warming .Corals are a symbiosis between the animal host and micro-algae from the genus Symbiodinium.Under stress, such as elevated SST, the algal endosymbionts are expelled, a process that is known as coral bleaching. Please specify a volume, issue and page OR a volume and page. Galaxea JCRS 5:33-39doi: 10.1016/S0921-8009(99)00009-9. Search; Browse; Journal issue. Galaxea, Journal of Coral Reef ... / Journal issue; Search. Hot news on the 2016, 2017, and 2020 coral bleaching events: 7 April 2020: Climate change triggers Great Barrier Reef bleaching 4 April 2019: Global warming disrupts recovery of coral reefs 11 Dec 2018: A glimmer of hope for the world’s coral reefs 26 Oct 2018: Fish give up the fight after coral bleaching 05 Sept 2018: Coral bleaching on the Great Barrier Reef not limited to shallow depths Various stresses induce the formation of reactive oxygen species (ROS) in biological cells. Galaxea fascicularis is a hermatypic coral that is relatively resilient to stress from bleaching and from sedimentation. OR . Septa accentuated stretching to corallite center.
The current bout of coral bleaching on the Great Barrier Reef, the third in 5 years, is the worst ever recorded, and raises global emissions alarm … Crossref, Google Scholar Crossref, Google Scholar; Moberg F, Folke C. 1999. Reef Encounter 43 31(1): 20-26. Global Coral Bleaching 2014-2017: Status and an Appeal for Observations. Revisiting the winners and the losers a decade after coral bleaching. At current rates of greenhouse gas emissions, it is projected that up to half of the world’s reefs will experience severe bleaching events in any given year by 2030.1 Coral reef degradation leads to a simultaneous loss is the significant ecosystem services they provide as the foundation for a thriving
Crossref, Google Scholar Two types of coral bleaching had been thoroughly discussed in the scientific literature; the first is primarily associated with mass coral bleaching events; the second is a seasonal loss of algae and/or pigments. Live coral coverage at the study sites ranged from 5.2% at Koh Samui to 64.3% at Koh Lan. In addition to stress‐induced ROS, we studied the photochemical formation of hydroxyl radicals (˙OH), the most potent ROS, in coral tissues using phosphate buffer‐extracted solutions and a simulated sunlight irradiation system. Polymorphism in the nucleotide sequence of a mitochondrial intergenic region in the scleractinian coral Galaxea fascicularis.
2002). Description: Galaxea sp. In 2005, the U.S. lost half of its coral reefs in the Caribbean in one year due to a massive bleaching event. This paper documents the conditions of selected coral communities in the Gulf of Thailand with an insight into the degree of resistance and resilience to coral bleaching and localized anthropogenic disturbances. Ecological goods and services of coral reef ecosystems. 7:33–39.