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In addition, many land animals have adapted to living a major part of their life on the oceans. For instance, seabirds are a diverse group of birds that have adapted to a life mainly on the oceans. They feed on marine animals and spend most of their lifetime on water, many only going on land for breeding. Other birds that have adapted to oceans as their living space are penguins, seagulls and pelicans. Seven species of turtles, the sea turtles, also spend most of their time in the oceans. We’ve drilled the ocean floor for oil and gas, scarred it with trenches for communications cables, poisoned it with old radioactive waste and chemical weapons, and polluted its remotest corners with a blizzard of discarded plastic. So, is mining a step too far? 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. Professor Richard Twitchett explains what a more acidic ocean could mean for the future of marine life. Saline water covers approximately 360,000,000 km2 (140,000,000 sq mi) and is customarily divided into several principal oceans and smaller seas, with the ocean covering approximately 71% of Earth’s surface and 90% of the Earth’s biosphere.[6] The ocean contains 97% of Earth’s water, and oceanographers have stated that less than 5% of the World Ocean has been explored.[6] The total volume is approximately 1.35 billion cubic kilometers (320 million cu mi) with an average depth of nearly 3,700 meters (12,100 ft).[7][8][9] Whether on the coast or landlocked, you can make a difference for the world’s oceans. Find out how! Oceans Deeply is designed to help you understand the complex web of environmental, social and economic issues facing the world’s oceans. Our editors and expert contributors work to bring you greater clarity and comprehensive coverage of ocean health. Dr Bruno Simões tells us how he pursued sea snakes from the mangroves to the open ocean to learn about their vision. What is it like to stand on the ocean floor? What do you learn from a lifetime spent in the heart of the sea?  “We invest a lot of money and enthusiasm for missions to space – but there’s nothing living out there. The sea bed is teeming with life. We really need a mission to planet ocean – it’s the last frontier.” SeaSee App shows us what the world would look like if the oceans were drained of water, using bathymetric (seafloor depth) data to generate 3D views. This app allows you to explore the ocean floor, from shipwrecks to marine habitats. W skład oceanów (układów oceanicznych) wchodzą także mniejsze obszary wodne, jak: morza, zatoki, kanały, zalewy i cieśniny, które od pełnych wód oceanicznych mogą być oddzielone półwyspami, wyspami bądź archipelagami. Wszystkie te zasoby wodne Ziemi określa się łącznie mianem wszechoceanu. Według tektoniki płyt skorupa ziemska powstaje w przybliżeniu w takim samym tempie, w jakim jest niszczona w strefach subdukcji, a łączna objętość oceanów nie ulega zmianie (nie licząc rozrostu i topnienia lodowców). Jedne oceany mogą powiększać się tylko kosztem innych; w historii Ziemi istniały zbiorniki oceaniczne, które zamknęły się na skutek ruchu kontynentów (paleooceany), a ich osady wypiętrzyły się tworząc łańcuchy górskie ( Himalaje). Dzisiejsze oceany Atlantycki, Arktyczny i Indyjski są geologicznie młodymi oceanami, które powstały w erze mezozoicznej i rozrastają się obecnie kosztem Pacyfiku. A zone of rapid salinity increase with depth is called a halocline. The temperature of maximum density of seawater decreases as its salt content increases. Freezing temperature of water decreases with salinity, and boiling temperature of water increases with salinity. Typical seawater freezes at around −1.9 °C at atmospheric pressure. If precipitation exceeds evaporation, as is the case in polar and temperate regions, salinity will be lower. If evaporation exceeds precipitation, as is the case in tropical regions, salinity will be higher. Thus, oceanic waters in polar regions have lower salinity content than oceanic waters in temperate and tropical regions.[55] The gas giants, Jupiter and Saturn, are thought to lack surfaces and instead have a stratum of liquid hydrogen, however their planetary geology is not well understood. The possibility of the ice giants Uranus and Neptune having hot, highly compressed, supercritical water under their thick atmospheres has been hypothesised. Although their composition is still not fully understood, a 2006 study by Wiktorowicz and Ingersall ruled out the possibility of such a water “ocean” existing on Neptune,[60] though some studies have suggested that exotic oceans of liquid diamond are possible.[61] We must know the value of our ocean to ensure conservation has a voice in ocean development. This acceleration of the current takes place in the direction of waves and dominant wind. Accordingly, when the sea depth increases, the rotation of the earth changes the direction of currents, in proportion with the increase of depth while friction lowers their speed. At a certain sea depth, the current changes direction and is seen inverted in the opposite direction with speed current becoming nul: known as the Ekman spiral. The influence of these currents is mainly experienced at the mixed layer of the ocean surface, often from 400 to 800 meters of maximum depth. These currents can considerably alter, change and are dependent on the various yearly seasons. If the mixed layer is less thick (10 to 20 meters), the quasi permanent current at the surface adopts an extreme oblique direction in relation to the direction of the wind, becoming virtually homogeneous, until the Thermocline.[38] Puffer fish and tropical fish spawn in lukewarm and warm oceans. Sarah Cooley, a marine scientist at the Ocean Conservancy, explains the environmental group’s strategy for reaching out to both sides of the aisle on legislation to address ocean challenges in a divisive political environment.20 days ago Five men were floating about in a boat in the Southern ocean. Salmon spawn in cold and frozen oceans, and unlike the other 3 variants, can also spawn in rivers. Pośród odkrytych planet pozasłonecznych znajdują się ciała krążące w obrębie tzw. ekosfery, czyli w obszarze wokół gwiazdy, w którym takie zbiorniki mogą istnieć. Współczesne modele powstawania planet wskazują na możliwość istnienia planet oceanicznych, pokrytych całkowicie wodami oceanu. The report says much more knowledge is needed about the ocean. The authors say the world needs a Mission to “Planet Ocean” to mirror the excitement of voyaging to the moon and Mars. By 2050 there will be more plastic than fish in our oceans. To reverse this trend, we need to take action! Take the pledge and commit to reducing your usage of plastics. Esri and our partners help you build a location strategy and meet your ocean management goals. For adding additional datasets you want listed email or leave a comment in the Comments Thread.  See award-winning shots capturing life in the ocean. Our oceans are changing fast. Find out how Museum collections are helping scientists to understand the future of marine life. Adrian Glover, a marine biologist at the NHM, has an analogy. Imagine trying to survey a rainforest while hovering in a hot air balloon. Making the task harder is a thick fog. And all you can do is lower a bucket at a few random points to drag up the odd branch and lump of soil. “Think of all the things you’d miss,” he says. “That’s what it’s like investigating the deep ocean.” Sophisticated and sensual. Private and exclusive. The Cove’s Ocean Suite offers Atlantis Paradise Resort Island guests a haven, a redefined beach vacation experience. Accentuated by luxurious amenities, all the resort services a traveler could ever want from Club Cove and capped by the pure blue of a never-ending Bahamian sky. 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