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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. In fact, getting to the deepest reaches of the ocean is so expensive that some people – like Oscar-winning director James Cameron – take it upon themselves to explore underwater spaces rarely visited by humans. 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] Test your ocean smarts and answer five quick questions to see how deep your ocean knowledge goes. 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 What affects the oceans affects terra firma. Ocean Solutions, Earth Solutions gathers the insights of more than 70 ocean and coastal science researchers exploring ocean components and their relationships, patterns, and trends over time and space. Read more  @oceanprime_cmr Puffer fish and tropical fish spawn in lukewarm and warm oceans. “It’s estimated that 95 per cent of the liveable space on our planet is in the ocean,” said Dr Carole Baldwin, curator of fishes at the Smithsonian’s National Museum of Natural History and lead author of the study. The XPRIZE Ocean Initiative is dedicated to ensuring our ocean is healthy, valued and understood. For the time being, SoFi is remote-controlled. But the idea is that future versions would use machine vision to lock onto individual fish and follow them around, all without raising suspicion. That could help scientists study schooling dynamics, or monitor the health of fish populations in increasingly unhealthy oceans. “It could help us with the problems of fish avoidance and fish attraction that are associated with other forms of monitoring with robots and divers,” says Northeastern’s Hanumant Singh, who develops autonomous underwater vehicles but was not involved in the research. This is an industry-led proposal, focused on building upon Canada’s world-class ocean-related business activity, research capacity, and proven technology expertise. We aim to: A global collective bringing the ocean and its importance to the most connected generation in history. Supported by UNOPS. Beaked whales can dive 2,000 metres below the ocean’s surface. Why and how do they do it? Protect the ocean and you protect yourself One reason fish are so diverse is that 70 percent of the planet is covered in water. The animals in this group live in a variety of habitats ranging from coral reefs and kelp forests to rivers, streams, and the open ocean. Another is that fish are very old on the evolutionary scale. According to fossil records, they have been on Earth for more than 500 million years! The total number of living fish species—about 32,000— is greater than the total of all other vertebrate species (amphibians, reptiles, birds, and mammals) combined. The goal of the Big Ocean Button Challenge is to advance development of and investment in ocean data products and services. Many sectors can benefit from solutions for organizing and standardizing ocean data. Some applications that are in need of ocean services include: To put into perspective just how deep the oceans go, Xkcd.com created the illustration below (click the image for a larger version). Earth may be the blue planet, but beneath the ocean waves lies a vast forest of green.  For the time being, SoFi is remote-controlled. But the idea is that future versions would use machine vision to lock onto individual fish and follow them around, all without raising suspicion. That could help scientists study schooling dynamics, or monitor the health of fish populations in increasingly unhealthy oceans. “It could help us with the problems of fish avoidance and fish attraction that are associated with other forms of monitoring with robots and divers,” says Northeastern’s Hanumant Singh, who develops autonomous underwater vehicles but was not involved in the research. The world’s oceans are a lifeline for people around the world, generating at least $2.5 trillion worth of products and services each year. Fishing alone supports more than 260 million jobs. Only a healthy ocean can keep this economic engine running. In the broad pathways of the ocean such a chance is doubtful. Despite their deep, dark habitat, the fish species the scientists found inhabiting this region tended to resemble the colourful fish found on coral reefs rather than true deep-ocean fishes. 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] Kantor ocean to idealne miejsce dla osób, które stawiają na wygodę, bezpieczeństwo i oszczędności. Dzięki platformie wymiany walut Ocean, wymienisz Swoją walutę nie wychodząc z domu po atrakcyjnym kursie, co pozwoli Ci zaoszczędzić znaczną sumę pieniędzy na Twojej racie kredytowej w obcej walucie. In-depth coverage of ocean health. Learn more about us. Protect the ocean and you protect yourself 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 But even more alarming was the suspicion of the Russians. To convince them that Howard Hughes was genuinely interested in nodules, executives were despatched to conferences on ocean mining where they described in detail their plans to harvest the rocks. Kantor ocean to idealne miejsce dla osób, które stawiają na wygodę, bezpieczeństwo i oszczędności. Dzięki platformie wymiany walut Ocean, wymienisz Swoją walutę nie wychodząc z domu po atrakcyjnym kursie, co pozwoli Ci zaoszczędzić znaczną sumę pieniędzy na Twojej racie kredytowej w obcej walucie. Obecnie poza Ziemią nie są znane żadne ciała niebieskie, na których potwierdzona byłaby obecność powierzchniowych zbiorników ciekłej wody. Prawdopodobnie przed 3-4 miliardami lat istniał ocean na Marsie, jednak utrata pola magnetycznego i rozrzedzenie atmosfery planety przyczyniły się do jego zaniknięcia. The pelagic part of the aphotic zone can be further divided into vertical regions according to temperature. The mesopelagic is the uppermost region. Its lowermost boundary is at a thermocline of 12 °C (54 °F), which, in the tropics generally lies at 700–1,000 meters (2,300–3,300 ft). Next is the bathypelagic lying between 10 and 4 °C (50 and 39 °F), typically between 700–1,000 meters (2,300–3,300 ft) and 2,000–4,000 meters (6,600–13,100 ft), lying along the top of the abyssal plain is the abyssopelagic, whose lower boundary lies at about 6,000 meters (20,000 ft). The last zone includes the deep oceanic trench, and is known as the hadalpelagic. This lies between 6,000–11,000 meters (20,000–36,000 ft) and is the deepest oceanic zone. 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. 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