| Zones of minimum upwelling and, therefore, productivity, occur in the central regions of the oceans known as the gyres. |
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| The gyre we planned to survey is one of the largest ocean realms on Earth, and one of five major subtropical gyres on the planet. |
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| So in other words, concentrations of sea birds may start at the edge of one of these gyres. |
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| The gyres and retention areas concentrate the primary and secondary production in this relatively shallow region. |
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| Our search starts with the help of satellite imaging which detects gyres in relation to the level of the sea. |
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| But, icky, snotty clumps of algae have been seen dancing in the eddies and gyres around the ship. |
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| The ocean currents, called gyres, are swirled around by the earth's rotation and crimped by its land masses. This is uncontroversial. |
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| Once in the surf, the hatchlings swim outward into the open ocean, and those of most species enter the gigantic oceanic gyres. |
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| This has created enormous plastic gyres in the Pacific, Atlantic and Indian oceans that contain and release toxic chemicals. |
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| The gyres also function as nursery grounds for the larvae and juveniles of the shellfish species of the region. |
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| Ocean currents flow in huge almost circular gyres thousands of kilometres across. |
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| Because 40 percent of the oceans are classified as subtropical gyres, a fourth of the planet's surface area has become an accumulator of floating plastic debris. |
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| During icehouse periods the distribution of continents inhibited circum-equatorial circulation forcing faster oceanic circulation in the main ocean gyres. |
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| Easily airborne, they float away from conscientious neatnik and litterbug alike, to find their way into mountain streams, ocean gyres and, eventually, the gullets of marine animals. |
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| Major ocean currents sweep the region from east to west by the Caribbean Current, with coastal countercurrents and several large gyres. |
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| Unlike the Beaufort Gyre in the Arctic Ocean, these gyres do not appear to recirculate ice. |
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| The fact that the variance is higher in summer in subtropical gyres is more surprising. |
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| Soft small islands disturb the gyres and modify the form of this carpet, each creating an interesting form of seat. |
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| Open water oceanographic features, such as upwellings, fronts or gyres, may be seascapes for pelagic and planktonic species. |
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| The combined flow of these gyres acts to advect the storm slowly poleward and westward. |
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| The Ross Gyre and Weddell Gyre are two gyres that exist within the Southern Ocean. |
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| The gyres are located in the Ross Sea and Weddell Sea respectively, and both rotate clockwise. |
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| The gyres are formed by interactions between the Antarctic Circumpolar Current and the Antarctic Continental Shelf. |
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| Within this feature, two smaller cyclonic gyres operate, occupying the eastern and western sectors of the basin. |
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| There are minor gyres in the Weddell Sea and the Ross Sea, the Weddell Gyre and Ross Gyre, which circulate in a clockwise direction. |
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| Oceanic debris tends to accumulate at the centre of gyres and coastlines, frequently washing aground where it is known as beach litter. |
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| Oceanic debris tends to accumulate at the center of gyres and coastlines, frequently washing aground where it is known as beach litter. |
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| The North Atlantic Gyre, located in the Atlantic Ocean, is one of the five major oceanic gyres. |
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| He suggested using platforms with arms to gather the debris, situated inside the current of gyres. |
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| But it is not the only place where a system of rotating ocean currents, known as gyres, concentrate floating material, particularly plastic detritus dumped into the sea or washed out from rivers. |
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| Where these gyres exist there are areas of high fish productivity. |
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| These gyres tend to concentrate nutrients, larvae, plankton, eggs, which in turn attract food and are food for larger commercial species, as you've just heard. |
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| Two coastal gyres are then created at the sides of this upwelling cell. |
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| Altimetry measurements have also shown that some gyres, which until then had been thought to be permanent structures, actually have strong variability, even disappearing or 'migrating' for periods of time. |
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| Almost all oceans have plastic gyres of their own. |
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| These currents form gyres on either side of the equator. |
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| This research is necessary to understand the worldwide movement of contaminants via the atmosphere and ocean circulatory gyres, the source of contamination from other continents and the impact of management actions. |
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| Flotsam can be blown by the wind, or follow the flow of ocean currents, often ending up in the middle of oceanic gyres where currents are weakest. |
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| Like other oceanic gyres, it collects vast amounts of floating debris. |
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| Floating oceanic debris tends to accumulate at the center of gyres and on coastlines, frequently washing aground, when it is known as beach litter or tidewrack. |
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| Though the circulation is not as significant as that in the air, the deflection caused by the Coriolis effect is what creates the spiraling pattern in these gyres. |
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| Organizations such as 5 Gyres have researched the pollution and, along with artists like Marina DeBris, are working toward publicizing the issue. |
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