Spring plankton bloom hitches ride to sea’s depths on ocean eddies

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Just as crocus and daffodil blossoms signal the start of a warmer season on land, a similar 'greening' event --a massive bloom of microscopic plants, or phytoplankton -- unfolds each spring in the North Atlantic Ocean from Bermuda to the Arctic....

Pacific-wide study reveals striped marlins’ preferred habitat, may help avoid overfishing

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Using the largest tagging data set to date, biologists have shown that across the Pacific Ocean the vertical habitat of striped marlin is defined by the light-penetrated, uppermost part of the ocean known as the epipelagic layer, within eight degrees Celsius of sea surface temperature....

Antarctic ice shelves rapidly thinning

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A new study has revealed that the thickness of Antarctica's floating ice shelves has recently decreased by as much as 18 percent in certain areas over nearly two decades, providing new insights on how the Antarctic ice sheet is responding to climate change....

Twice the coral trout in Great Barrier Reef protected zones

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Coral trout in protected 'green zones' are not only bigger and more abundant than those in fished 'blue zones' of the Great Barrier Reef Marine Park, but they are also better able to cope with cyclone damage, according to a long-term study....

Pioneering techniques in computer vision and robotics pave the way for future underwater surveying in Cardigan Bay

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Scientists have been working with marine conservation groups to develop better techniques for studying the seabed which is vital for marine conservation and fisheries management....

Coastal property values could erode if nourishment subsidies end

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The value of many oceanfront properties on the East Coast could drop dramatically if Congress were to suddenly end federal beach nourishment subsidies. Values could fall by as much as 17 percent in towns with high property values and almost 34 percent in towns with low property values. A gradual reduction of the subsidies, in contrast, is more likely to smooth the transition to more climate-resilient coastal communities....

A mile deep, ocean fish facing health impacts from human pollution

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Deep-water marine fish living on the continental slopes at depths from 2,000 feet to one mile have liver pathologies, tumors and other health problems that may be linked to human-caused pollution, one of the first studies of its type has found. Fish have been found with a blend of male and female sex organs including. The findings appear to reflect general ocean conditions....

Shell-shocked: Ocean acidification likely hampers tiny shell builders in Southern Ocean

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A ubiquitous type of phytoplankton -- tiny organisms that are the base of the marine food web -- appears to be suffering from the effects of ocean acidification caused by climate change. According to authors of a new study, the single-celled organism under study is a type of "calcifying" plankton called a coccolithophore, which makes energy from sunlight and builds microscopic calcium carbonate shells, or plates, to produce a chalky suit of armor....

Doubling of coastal erosion by mid-century in Hawai’i

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Chronic erosion dominates the sandy beaches of Hawai'i, causing beach loss as it damages homes, infrastructure, and critical habitat. Researchers have long understood that global sea level rise will affect the rate of coastal erosion. However, new research indicates that coastal erosion of Hawai'i's beaches may double by mid-century....

Ascension of marine diatoms linked to vast increase in continental weathering

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A team of researcher has used mathematical modeling to show that continental erosion over the last 40 million years has contributed to the success of diatoms, a group of tiny marine algae that plays a key role in the global carbon cycle....