Oceans (from Okeanos in Greek, the ancient Greeks noticing the strong current that flowed off Gibraltar and assuming it was a great river) cover almost three quarters (71%) of the surface of the Earth, and nearly half of the world's marine waters are over 3,000 meters (9,800 ft) deep.
This global, interconnected body of salt water, called the World Ocean, is generally divided by the continents and archipelagos into the following bodies, from the largest to the smallest: the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean, and the Arctic Ocean.
Smaller regions of the oceans are called seas, gulfs, straits and other names.
More on [ Ocean ]
Dolphins, Manatees, and Whales :: Ecotourism
Estuarine :: Aquatic Ecology
Fisheries Science :: Aquatic Ecology
Marine :: Aquatic Ecology
Coastal :: Ecosystems
Oceanography :: Earth Sciences
Marine Mammals :: Mammals

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American Oceans Campaign - An oceans advocacy non-profit organization which focuses on water/beach quality, fisheries and fish habitat, and marine sanctuaries.
Meta Description: [ Oceana campaigns to protect and restore the world’s oceans. Our teams of marine scientists, economists, lawyers and advocates win specific and concrete policy changes to reduce pollution and to prevent the irreversible collapse of fish populations, marine mammals and other sea life. Global in sco... ]
Coral Sea Conservation - International monitoring program aimed at the preservation of the ocean environment through the protection of coral reefs and marine species. Includes project and research reports, news, contact details, and opportunities to participate.
Meta Description: [ Marine Conservation - Coral Sea - preservation of the ocean environment by education and research projects - protection of coral reefs and marine species ]
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Disclosure: Fish Farm Flap - Investigates suspicions about Canada's billion-dollar fish farm industry and its impact on wild salmon. Includes links to research, maps, media coverage and documents.
Meta Description: [ CBC News: Disclosure investigates suspicions about the billion-dollar fish farm industry and its impact. ]
Fish for All - A public global science and policy dialogue on issues such as fish and development, fish and nutrition, health, livelihood, environment, gender, water, river basins, coasts, trade and economic growth.
Marine Ecosystem Health Program - UCD School of Vet Med program focuses on issues of ecosystem and wildlife health of the Inland Waters of Washington and British Columbia.
Meta Description: [ UC Davis School of Veterinary Medicine program focuses on issues of ecosystem and wildlife health of the Inland Waters of Washington and British Columbia, Canada: Puget Sound/Northwest Straits/Georgia Basin. ]
Marine Stewardship Council - An international charity based in London. The MSC's fisheries certification program aims to encourage sustainable fishing practices through a consumer-targeted product labeling scheme. (Site requires Flash plug-in and Java).
National Coalition for Marine Conservation - The National Coalition for Marine Conservation (NCMC) is dedicated exclusively to conserving ocean fish, preventing overfishing, reducing bycatch and protecting habitat.
Meta Description: [ NCMC is dedicated exclusively to conserving ocean fish, preventing overfishing, reducing fish bycatch and protecting marine habitat ]
ReefsUK - Non-profit organisation dedicated to reef conservation and specialising within the marine aquarium industry. Advice, articles, chat and livestock list, with details of how you can help.
Surfrider Foundation USA - A non-profit environmental organization dedicated to the protection and enhancement of the world's waves and beaches through conservation, activism, research and education.
The Ocean Conservancy - Marine conservation advocacy organization.
Meta Description: [ Ocean Conservancy promotes healthy and diverse ocean ecosystems and opposes practices that threaten ocean life and human life. ]
Viking Explorer Marine Research Organisation - Non-profit marine research.
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