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Date: Sat, 17 Aug 2019 22:40:50 GMT
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URL: http://www.ox.ac.uk/news/2019-04-15-can-remote-sensing-help-us-protect-coral-reefs
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Title: Can remote sensing help us to protect coral reefs? | University of Oxford
Description: Coastal communities depend on a healthy coral reef ecosystems for food, clean water, commerce, and culture. These reefs are also home to a rich diversity of tropical fish and other vibrant species.  Among the range of threats posed to coral reefs, warming ocean due to climate change is among the most concerning.
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Texto: Can remote sensing help us to protect coral reefs? | University of Oxford Skip to main content Home Home Admissions Undergraduate Graduate Continuing education Research Divisions Research impact Libraries Innovation and Partnership Support for researchers Research in conversation Public Engagement with Research News & Events Events Science Blog Arts Blog Oxford and Brexit News releases for journalists Filming in Oxford Find An Expert About Organisation Facts and figures Oxford people Oxford Access International Oxford Building Our Future Jobs 牛津大学 Search News & Events Events Regular events in the University Year Race and the Curriculum Women of Achievement Science Blog Arts Blog Oxford and Brexit Latest University updates University to pay settlement fees for all EU staff EU referendum and Brexit: Analysis News releases for journalists Filming in Oxford Find An Expert Can remote sensing help us to protect coral reefs? Published 15 Apr 2019 Share This Tweet Share on Facebook Share on LinkedIn Share on Reddit Home News Can remote sensing help us to protect coral reefs? Can remote sensing help us to protect coral reefs? Research Science Coastal communities depend on a healthy coral reef ecosystems for food, clean water, commerce, and culture. These reefs are also home to a rich diversity of tropical fish and other vibrant species.  Among the range of threats posed to coral reefs, warming ocean due to climate change is among the most concerning. A new study led by Lisa Wedding , Associate Professor at the University of Oxford’s School of Geography and the Environment, uses remotely sensing to illuminate coral reef complexity and biodiversity. This research published recently in Remote Sensing in Ecology and Conservation , uses a novel approach by combining 2D and 3D seascape models to identify complex reef structure, and the populations of fish living within them. Creating cost effective and accurate methods of identifying coastal “hotspots” is an essential step in the creation of effective management plans for marine protection and conservation. “Mapping and placing value on reef areas that represent biodiversity hotspots are important for coastal communities that rely on healthy reef fish populations for food, tourism and culture. This information can help to inform urgently needed management actions to sustain healthy reefs and healthy coastal communities,” said Wedding. The team took to their SCUBA gear and dove on 625 coral reef sites in order to inform their seascape models. The divers tallied the type and length of each coral reef fish species present. The researchers then harnessed satellite data to create 2D habitat maps at each site. While used widely in the past, using 2D satellite data for coral reef mapping has limitations, as only planimetric (or horizontal) areas of habitats are accounted for rather than the total complex 3D structure. In the case of coral reefs, elaborate habitat configurations indicate higher potential for biodiversity, a chief indicator of a healthy ecosystem. ">Video of How can we identify coral reef “hotspots”? The team turned to a technology called LiDAR (light detection and ranging), a remote sensing tool that uses light in the form of a pulsed laser to measure variable distances. This allowed them to create 3D models, bringing to life the true complexity of the coral reef seafloor. Equipped with this information, the researchers were able to create predictive models of the reef fish community, based on the collected habitat data. Surprisingly, the most effective model was a combination of the 2D and 3D LiDAR satellite data, which most accurately predicted coral reef fish diversity, biomass and density. “We found that 2D characterization of the seafloor does not capture the intricate relationships between reefs and fish communities, and the application of LiDAR in this work helps to advance seascape ecology theory and application in the third dimension," said Wedding. The researchers also found that marine protected areas consistently demonstrated higher fish diversity and biomass. This suggests that creating marine protected areas where complex 3D reef structures exist may be key in establishing more resilient ocean ecosystems, able to recover more quickly from future bleaching events or other damaging forces. “Understanding the seascape from a 3D perspective offers great potential to advance our knowledge of coral reefs,” Wedding said. “LiDAR remote sensing allows us to capture the intricate 3D vertical structure of coral reefs and understand wherehabitats have high conservation value to inform future ocean planning efforts. Our research supports the design of marine protected areas in these locations, which should be a management priority, as habitat complexity can enhance reef resilience and recovery.” Latest Ancient pigs endured a complete genomic turnover after they arrived in Europe 14 Aug 2019 'The Nemo effect' is untrue: animal movies promote awareness, not harm 14 Aug 2019 Oxford spinout company launched to diagnose Alzheimer’s Disease from MRI scans 9 Aug 2019 Oxford's first postgraduate access programme draws to a close 8 Aug 2019 Smartphone test predicts how symptoms develop in Parkinson’s 7 Aug 2019 Further information Full paper Video abstract All news Share This Tweet Share on Facebook Share on LinkedIn Share on Reddit Connect with us iTunes Youtube Facebook Twitter LinkedIn Weibo Instagram Medium The Conversation Information About Oxford University Strategic plan Oxford's research Fees and funding Libraries Museums and collections Open days Oxford glossary Statement on Modern Slavery Data privacy / GDPR Sport at Oxford Conferences at Oxford 牛津大学 Information For Prospective undergraduates Prospective graduate students Prospective Continuing Education students Prospective online/distance learning students Current Oxford students Current Oxford staff Oxford residents/Community Visitors/Tourists Media Alumni Teachers Parliamentarians Businesses/Partnerships Quick Links Contact search Jobs and vacancies Term dates Map Nexus365 email Giving to Oxford Oxford University Images © University of Oxford 2019 Contact us About this site Legal Privacy policy Cookie statement


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