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Tag: acidification
Pink Salmon Risks a Double Threat of Acidification
2015-07-05 15:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: Pink salmon in the Pacific Ocean face a double threat of acidification linked to greenhouse gas emissions since it slows their early growth in rivers and disrupts the chemistry of seawater. Impacts have in the past been more studied in the seas than in fresh water. But the Canadian study found that acidification of rivers could make young pink salmon, the most abundant type in the Pacific, smaller and more vulnerable to predators by dampening their ability to smell danger. Damage done by acidification...
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Oceans face 'acidification crisis'
2015-07-03 02:22:00| Climate Ark Climate Change & Global Warming Newsfeed
BBC: Scientists have warned that marine life will be irreversibly changed unless CO2 emissions are drastically cut. Writing in Science, experts say the oceans are heating, losing oxygen and becoming more acidic because of CO2. They warn that the 2C maximum temperature rise for climate change agreed by governments will not prevent dramatic impacts on ocean systems. And they say the range of options is dwindling as the cost of those options is skyrocketing. Twenty-two world-leading marine scientists...
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Ocean acidification: Not just for oceans anymore!
2015-07-01 02:14:00| Climate Ark Climate Change & Global Warming Newsfeed
Grist: Move over, ocean acidification - or don`t, actually. "Freshwater acidification" doesn`t have quite the same ring to it, though it is happening, thanks to the same carbon emissions currently souring the seas. And apparently fish are feeling the burn already, according to a study in Nature on juvenile pink salmon. From Scientific American: The study was among the first to look at how different CO2 levels could affect fish larvae in fresh water, according to the lead author, Michelle Ou, a former...
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Freshwater fish threatened by acidification
2015-06-30 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Science: Acidifying ocean watera byproduct of increased carbon dioxide in the atmospheremesses with saltwater fish in a variety of ways. Rockfish become more nervous. Clownfish cant always detect predators, whereas the brown dottyback actually avoids the smell of injured prey. But it turns out that saltwater fish arent the only ones affected. Pink salmon reared in CO2-rich fresh water showed many of the same signs as their marine brethren, according to a study published today in the journal Nature Climate...
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Coral Reefs in Palau Defy Ocean Acidification
2015-06-11 19:06:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World News: As humans continue to release harmful fossil fuels into the air, the Earth's oceans are absorbing more and more atmospheric carbon dioxide (CO2). Consequently, in a process known as ocean acidification, this CO2 reacts with water molecules and lowers the ocean pH, making it more acidic. This process also removes carbonate, an essential ingredient needed by corals and other organisms to build their skeletons and shells. As a result, these calcifiers are struggling in Earth's changing oceans, and...
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