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A mission to map the hidden ocean floor Plastics is just one issue facing the world’s seas, along with rising sea levels, warming oceans, and pollution, it says. 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 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. Na niektórych ciałach położonych poza klasycznie definiowaną ekosferą mogą istnieć podpowierzchniowe zbiorniki ciekłej wody. Niektóre z nich tworzą płynną warstwę wody otaczającą cały glob, pokrytą skorupą lodową o wielokilometrowej grubości. Taki podpowierzchniowy ocean posiadają niektóre księżyce planet, w szczególności Europa, a także prawdopodobnie Ganimedes i Kallisto, dwa inne galileuszowe księżyce Jowisza oraz Tytan i Enceladus, krążące wokół Saturna[6]. Ocean na Europie przypuszczalnie ma kontakt ze skalistym wnętrzem księżyca i na jego dnie może mieć miejsce aktywność wulkaniczna lub hydrotermalna; także ocean na Enceladusie rozciąga się między lodową skorupą a skałami[7]. Prawdopodobne oceany na trzech największych księżycach lodowych są uwięzione pomiędzy dwiema warstwami lodu o różnej strukturze krystalicznej i gęstości[8]. Modele ewolucji termicznej wskazują także na możliwość powstania takich zbiorników na niektórych większych obiektach transneptunowych[9] (plutoidach). Equipped with a towering rig and the latest in drilling gear, the vessel was designed to reach down through the deep, dark waters to a source of incredible wealth lying on the ocean floor. Terrestrial planets will acquire water during their accretion, some of which will be buried in the magma ocean but most of it will go into a steam atmosphere, and when the atmosphere cools it will collapse on to the surface forming an ocean. There will also be outgassing of water from the mantle as the magma solidifies—this will happen even for planets with a low percentage of their mass composed of water, so “super-Earth exoplanets may be expected to commonly produce water oceans within tens to hundreds of millions of years of their last major accretionary impact.”[73] The amount of plastic in the ocean is set to treble in a decade unless litter is curbed, a major report has warned. Scientists testing North Atlantic mesopelagic fish eaten by the ocean’s top predators found that nearly 75 percent were contaminated with microplastic fibers. Researchers have also discovered microplastics in the scat of gray seals and in the Atlantic mackerel they eat.23 days ago The ocean is not only home to dolphins and jellyfish, whales, and sharks. It’s also a museum where stories about life on the sea, not recorded in the books, are discovered. Uncover the human stories behind shipwrecks, including some of the most famous ones, including the Titanic. Are you ready to go back in time? Tune in to Ocean Today’s latest “Full Moon” video collection! The Proclamation of the Decade of Ocean Science for Sustainable Development by the UN General Assembly marks the beginning of a process of consultations with all ocean stakeholders, coordinated by UNESCO’s IOC, to prepare a concerted Decade Implementation Plan. 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 (m.in. Himalaje). Dzisiejsze oceany Atlantycki, Arktyczny i Indyjski są geologicznie młodymi oceanami, które powstały w erze mezozoicznej i rozrastają się obecnie kosztem Pacyfiku. Urge NOAA to strengthen its plan to reduce industrial ocean noise. Large bodies of liquid hydrocarbons are thought to be present on the surface of Titan, although they are not large enough to be considered oceans and are sometimes referred to as lakes or seas. The Cassini–Huygens space mission initially discovered only what appeared to be dry lakebeds and empty river channels, suggesting that Titan had lost what surface liquids it might have had. Cassini’s more recent fly-by of Titan offers radar images that strongly suggest hydrocarbon lakes exist near the colder polar regions. Titan is thought to have a subsurface liquid-water ocean under the ice and hydrocarbon mix that forms its outer crust. The word « ocean » comes from the figure in classical antiquity, Oceanus (/oʊˈsiːənəs/; Greek: Ὠκεανός Ōkeanós,[13] pronounced [ɔːkeanós]), the elder of the Titans in classical Greek mythology, believed by the ancient Greeks and Romans to be the divine personification of the sea, an enormous river encircling the world. 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. OMI serves to enrich and expand the public’s understanding of ocean science and conservation through the collaborative creation, exhibition, and open-distribution of innovative visual media as well as artistic approaches to ocean education. We understand that the oceans impact every aspect of our lives and we see the power in every moment to change the future of our planet. Through music, mobile gaming and digital platforms. We see a new way to educate. Seychelles has announced two new Marine Protected Areas covering 210,000 square kilometers of biodiverse ocean waters. The Nature Conservancy’s Rob Weary explains how the group brokered an innovative financing deal that could serve as a model for ocean protection in island developing nations.13 days ago Cameron visited the Mariana Trench, the deepest place on Earth at 7 miles (11 km) below the surface of the Pacific Ocean, in a minisubmarine in 2012. He was only the second person to visit that area of the ocean. While changing ocean and sea ice conditions are hurting some of Antarctica’s Adelie penguins, a newly discovered “supercolony” of 1.5 million offers new information to guide marine conservation.17 days ago There’s a lot we don’t know about the ocean, simply because it’s so difficult for us to access. It was only thanks to advances in submersible technology that marine scientists have been able to explore down below the reef off the coast of Curaçao. Urge NOAA to strengthen its plan to reduce industrial ocean noise. According to a scientific meeting at the Museum this week, mining the deep ocean for minerals could cause wide-ranging, decades-long disturbances to the seafloor’s diverse ecosystems. Although no-one has yet started mining the ocean floor, dozens of research expeditions are under way “at an intense pace”, says Michael Lodge, from the International Seabed Authority. “We made ocean mining seem a lot more credible,” Sharp says. “We really misled a lot of people and it’s surprising that the story held together for so long.” The most important legacies of the UN Decade of Ocean Science will be a new generation of ocean scientists and technicians, with the establishment of new research networks, and a new generation of enhanced observational systems, facilities and infrastructure that will help countries achieve the 2030 Agenda for Sustainable Development. The Decade will also raise unprecedented levels of interest and participation from youth, the general public, and decision-makers around the globe. As mandated by the UN General Assembly, the Intergovernmental Oceanographic Commission (IOC) of UNESCO will coordinate the Decade’s preparatory process, inviting the global ocean community to plan for the next ten years in ocean science and technology to deliver, together, the ocean we need for the future we want! 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