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Coral reefs constitute the most spectacular and diverse ecosystems in the marine environment. They form reservoirs of the highest biological diversity, including genetic resources and bio-active compounds. Unfortunately, coral reefs are also among the most heavily degraded marine ecosystems. Over the last two decades, coral reef communities have been experiencing increasingly stressful conditions due to a combination of natural and anthropogenic detrimental factors. Coral diseases are among the most recent in a series of threats (e.g. coral bleaching, over exploitation of fish stocks, destructive fishing practices and coastal developments) that is challenging the resilience of coral reef communities. During an international meeting on coral diseases held in Eilat, Israel, in 2003, leading scientists presented reviews and recent results of laboratory research and in situ observations in order to assess the status of coral health and to understand the disease mechanisms. The most relevant papers are now presented in Coral Health and Disease. The book starts with several case studies of reefs, which strongly differ regionally, e.g. the Red Sea, Caribbean, Mediterranean, Gulf of Mexico, Japan, western Indian Ocean and the Great Barrier Reef. The second part on microbial ecology and physiology contains contributions describing the symbiotic relations of corals and microbes, the microbial role in nutrition and bleaching resistance and the antibacterial activities of corals. Particular coral diseases, such as aspergillosis, white pox, black, yellow and white band diseases are treated in the third part. Finally, different hypotheses of the mechanisms of coral bleaching, including a projection of the future of coral reefs, are discussed.
Coral reef ecology --- Corals --- Diseases --- Aquatic ecology . --- Animal ecology. --- Microbial ecology. --- Ecotoxicology. --- Nature conservation. --- Freshwater & Marine Ecology. --- Animal Ecology. --- Microbial Ecology. --- Nature Conservation. --- Conservation of nature --- Nature --- Nature protection --- Protection of nature --- Conservation of natural resources --- Applied ecology --- Conservation biology --- Endangered ecosystems --- Natural areas --- Ecotoxicology --- Pollutants --- Pollution --- Environmental health --- Toxicology --- Environmental microbiology --- Microorganisms --- Ecology --- Microbiology --- Animals --- Zoology --- Aquatic biology --- Conservation
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This book summarizes what is known about mesophotic coral ecosystems (MCEs) geographically and by major taxa. MCEs are characterized by light-dependent corals and associated communities typically found at depths ranging from 30-40 m and extending to over 150 m in tropical and subtropical ecosystems. They are populated with organisms typically associated with shallow coral reefs, such as macroalgae, corals, sponges, and fishes, as well as specialist species unique to mesophotic depths. During the past decade, there has been an increasing scientific and management interest in MCEs expressed by the exponential increase in the number of publications studying this unique environment. Despite their close proximity to well-studied shallow reefs, and the growing evidence of their importance, our scientific knowledge of MCEs is still in its early stages. The topics covered in the book include: regional variation in MCEs; similarities and differences between mesophotic and shallow reef taxa, biotic and abiotic conditions, biodiversity, ecology, geomorphology, and geology; potential connectivity between MCEs and shallow reefs; MCE disturbances, conservation, and management challenges; and new technologies, key research questions/knowledge gaps, priorities, and future directions in MCE research.
Coral reefs and islands. --- Atolls --- Coral atolls --- Coral islands --- Reefs, Coral --- Islands --- Aquatic biology. --- Marine Sciences. --- Climatic changes. --- Conservation biology. --- Biodiversity. --- Oceanography. --- Freshwater & Marine Ecology. --- Marine & Freshwater Sciences. --- Climate Change. --- Conservation Biology/Ecology. --- Oceanography, Physical --- Oceanology --- Physical oceanography --- Thalassography --- Earth sciences --- Marine sciences --- Ocean --- Biological diversification --- Biological diversity --- Biotic diversity --- Diversification, Biological --- Diversity, Biological --- Biology --- Biocomplexity --- Ecological heterogeneity --- Numbers of species --- Ecology --- Nature conservation --- Changes, Climatic --- Changes in climate --- Climate change --- Climate change science --- Climate changes --- Climate variations --- Climatic change --- Climatic changes --- Climatic fluctuations --- Climatic variations --- Global climate changes --- Global climatic changes --- Climatology --- Climate change mitigation --- Teleconnections (Climatology) --- Ocean sciences --- Aquatic sciences --- Hydrobiology --- Water biology --- Environmental aspects --- Aquatic ecology . --- Marine sciences. --- Freshwater. --- Climate change. --- Ecology . --- Balance of nature --- Bionomics --- Ecological processes --- Ecological science --- Ecological sciences --- Environment --- Environmental biology --- Oecology --- Environmental sciences --- Population biology --- Fresh waters --- Freshwater --- Freshwaters --- Inland water --- Inland waters --- Water --- Aquatic biology --- Ecologia marina --- Ecologia dels esculls coral·lins --- Conservation biology --- Esblanqueïment de coralls --- Esculls coral·lins --- Ecologia oceànica --- Ecologia dels oceans --- Ecosistemes marins --- Oceanografia biològica --- Biologia marina --- Ecologia aquàtica --- Ecologia d'estuaris --- Ecologia pelàgica --- Productivitat marina --- Global environmental change
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