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Oceanographers divide the ocean into different vertical zones defined by physical and biological conditions. The pelagic zone includes all open ocean regions, and can be divided into further regions categorized by depth and light abundance. The photic zone includes the oceans from the surface to a depth of 200 m; it is the region where photosynthesis can occur and is, therefore, the most biodiverse. Because plants require photosynthesis, life found deeper than the photic zone must either rely on material sinking from above (see marine snow) or find another energy source. Hydrothermal vents are the primary source of energy in what is known as the aphotic zone (depths exceeding 200 m). The pelagic part of the photic zone is known as the epipelagic. Oceans X Labs, a joint initiative of Conservation X Labs and WWF, is matching big ideas with the brightest minds in search of solutions to the global challenges of oceans conservation. Od czasu odkrycia w latach 50. XX w. zjawiska ekspansji dna oceanicznego, czyli powstawania zupełnie nowej skorupy ziemskiej w strefach grzbietów śródoceanicznych, oraz w wyniku badań wieku osadów oceanicznych i samej skorupy, rozwinęło się kilka teorii geotektonicznych, spośród których powszechnie dziś akceptowana jest teoria tektoniki płyt. Navisea is designed for planning and tracking ocean voyages, and includes data on traffic, ports, docks, navigation, and weather. This app can make navigation tools accessible to smaller vessels and marry data from the economic-focused shipping industry with the environmental-focused government and NGO datasets. Early ancestors of the ocean’s biggest animals once walked on land. Follow their extraordinary journey from shore to sea.  Ocean (łac. Oceanus, stgr. Ὠκεανός Okeanos – u starożytnych Greków i Rzymian mityczna rzeka oblewająca cały świat, także nazwa jej boga) [1] – wielka część hydrosfery ziemskiej, stanowiąca rozległy obszar słonej wody. Wody słone pokrywają w sumie blisko 3/4 (70,8%) Ziemi. Powierzchnia oceanów wynosi ok. 361 mln km², a ich łączna objętość ok. 1,3•1018 m³. Early ancestors of the ocean’s biggest animals once walked on land. Follow their extraordinary journey from shore to sea.  Most studies looking at how corals will respond to future increases in ocean acidity are based on laboratory studies. This week in the journal Nature, researchers reported on a large-scale experiment to simulate these conditions in a natural coral ecosystem. The mission of OceanSITES is to collect, deliver and promote the use of high-quality data from long-term, high-frequency observations at fixed locations in the open ocean. OceanSITES typically aim to collect multidisciplinary data worldwide from the full-depth water column as well as the overlying atmosphere. The ocean covers more than two-thirds of our planet, and there’s so much of it left unexplored. How are we humans supposed to blend in to uncover all of its secrets, when our observation tools are hooked to clunky vehicles with fish-scaring propellers and jets? The rariphotic is a sort of “missing link” between medium-light reef zones and the lightless ocean beneath, known as the aphotic zone. Stay in touch with others in the oceans industry who are interested in GIS and location analytics. Join the conversation on GeoNet. Oceana Canada, an ocean research charity, is hoping citizen scientists in Halifax armed with DNA kits will help them sniff out seafood fraud. Advocates of exploiting the ocean also point to the size of mines on land compared with those that would be operated underwater. Kennecott in Utah and Chuquicamata and Escondida in Chile involve mind-bogglingly large holes in the ground. They stretch nearly three miles across (4km) and reach more than half a mile deep (645m-1200m). The pelagic zone can be further subdivided into two subregions: the neritic zone and the oceanic zone. The neritic zone encompasses the water mass directly above the continental shelves whereas the oceanic zone includes all the completely open water. New studies show complex effects of carbon dioxide on fish population. Many studies have shown that larvae of various fish species can be negatively affected by ocean acidification. Acidification is caused by large amounts of carbon dioxide (CO2) entering the seawater from the atmosphere. But CO2 can also influence the food supply for the fish … more We cannot manage what we cannot measure. The following are examples of ocean management applications that will be supported by improved data and knowledge generated under the UN Decade of Ocean Science for Sustainable Development: A PR campaign conveyed a determined effort to find manganese nodules. These potato-sized rocks lie scattered in the abyss, the great plains of the deep ocean. Covering 72 percent of the Earth and supplying half its oxygen, the ocean is our planet’s life support system—and it’s in danger. Watch this video to learn why a healthier ocean means a healthier planet, and find out how you can help. Resources are available for GIS for ocean planning and for aid transparency. A mission to map the hidden ocean floor It’s time to give our ocean our full attention. Today, Canada derives relatively less economic benefit from the ocean than other nations. There is tremendous potential to better leverage science and technology in Canada’s ocean sectors and to build a digitally-powered, knowledge-based ocean economy. Reef ecosystems just below the mesophotic zone – the maximum depth at which tropical reef-building corals can survive – have been largely ignored by ocean explorers. Test your ocean smarts and answer five quick questions to see how deep your ocean knowledge goes. Call of the Ocean. Solo sailor Szymon Kuczyński sailing non-stop around the world on 22 feet yacht “Atlantic Puffin”. More info on website: www.zewoceanu.pl. Follow along online. The MapShare site shows the progress of someone tracking with an inReach satellite communicator. Read messages they have sent to MapShare. You can even reply. An ocean (from Ancient Greek Ὠκεανός, transc. Okeanós, the sea of classical antiquity[1]) is a body of saline water that composes much of a planet’s hydrosphere.[2] On Earth, an ocean is one of the major conventional divisions of the World Ocean. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans.[3][4] The word sea is often used interchangeably with “ocean” in American English but, strictly speaking, a sea is a body of saline water (generally a division of the world ocean) partly or fully enclosed by land.[5] Reef ecosystems just below the mesophotic zone – the maximum depth at which tropical reef-building corals can survive – have been largely ignored by ocean explorers. Join Ocean Futures Society today–Be part of Jean-Michel’s team as we explore the world and address important issues. With our updates, you can add your voice for the ocean! 4Ocean is a global movement actively removing trash from the ocean and coastlines while inspiring individuals to work together for cleaner oceans, one pound at a time. Salmon spawn in cold and frozen oceans, and unlike the other 3 variants, can also spawn in rivers. NRDC works to protect our seas from pollution and exploitation. We help implement laws that allow overfished species to rebound, and we fight to protect coastal communities from offshore drilling. We work to ban destructive fishing practices, conserve ocean treasures, and improve stewardship of the world’s shared oceans, which generate trillions of dollars in economic activity. Jim Mosher of Clearwater Seafood discusses how GIS will be critical to maintaining sustainable ocean ecosystems Some delegations were already hostile, but Pardo was well prepared and passionate, even lyrical. The dark oceans, he said, “were the womb of life”. He then quoted John Mero’s research into the “astounding” contents of the billions of nodules lying untouched on the seabed – enough aluminium to last 20,000 years, zirconium for 100,000 years and cobalt for 200,000 years. In an air-conditioned cabin in a teeming port in Papua New Guinea, Leslie Kewa reaches for a joystick that will control a machine the size of a house. 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