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Coccoliths thrive despite ocean acidification http://apocadocs.com/s.pl?1369187346
An international team studied the effect of ocean acidification on plankton in the North Sea over the past forty years, to see what impact future changes may have....
Foraminifera and coccoliths, which are small shelled plankton and algae, appear to be surviving remarkably well in the more acidic conditions. But numbers of pteropods and bivalves - such as mussels, clams and oysters - are falling.
'Ecologically, some species are soaring, whilst others are crashing out of the system,' says Professor Jason Hall-Spencer, of Plymouth University, who co-authored the paper....
'The aragonite skeleton of pteropods dissolves more easily in corrosive waters than the low-magnesium calcite that typifies many clams and other molluscs,' explains Hall-Spencer. 'But now we think that it's not as simple as that. It depends partly on how stressed organisms are by other factors, such as lack of food. It also depends on their shape and their ability to protect their skeletons.'
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[Read more stories about:
ocean acidification, carbon sinks]
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