Friday, 12 March 2010

Time to save Nemo, his home & his friends



What links underwater volcanic springs,coral reefs & some researchers from Plymouth? Interestingly it is ocean acidification. There are an estimated 50,000 volcanic springs in the depths of the sea, which spew out carbon-di-oxide among other things into its surrounding. So what’s special about this you might ask. Well, the scientists from University of Plymouth have come up with an ingenious use for this naturally occurring phenomenon. They observed that water near the vents of these volcanoes is more acidic than the surrounding sea water, reaching to the predicted acidity level of oceans in three or four decades ,if ocean acidification due to anthropogenic activities is uncurtailed. This phenomenon therefore allows the use of these vents as labs on- the- sea for measuring the effect of ocean acidification on the growth of marine flora and fauna . As could be expected, the researchers found that the normally colourful sea bed often dotted with corals and sea urchins are replaced by sea grasses and invasive algae when waters become more acidic, an alarming reminder of what might happen if carbon-di-oxide emissions are left unchecked. The time is ripe for some action if we care about Nemo!

Relevant links
http://www.timesonline.co.uk/tol/news/environment/article5936330.ece
http://www.guardian.co.uk/environment/2008/oct/05/climatechange.italy
http://www.telegraph.co.uk/earth/environment/climatechange/7264210/Coral-reefs-being-destroyed-by-climate-change.html
http://www2.disney.co.uk/DisneyMovies/nemo/

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