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Posted Mon Jan 16 2012: from Nature Climate Change, via EPOCA:
Carbon dioxide is 'driving fish crazy'
"For several years our team have been testing the performance of baby coral fishes in sea water containing higher levels of dissolved CO2 - and it is now pretty clear that they sustain significant disruption to their central nervous system, which is likely to impair their chances of survival," Prof. Munday says.... ["]They were confused and no longer avoided reef sounds during the day. Being attracted to reefs during daylight would make them easy meat for predators." Other work showed the fish also tended to lose their natural instinct to turn left or right - an important factor in schooling behaviour which also makes them more vulnerable, as lone fish are easily eaten by predators. "All this led us to suspect it wasn't simply damage to their individual senses that was going on - but rather, that higher levels of carbon dioxide were affecting their whole central nervous system."
[Read more stories about: ocean acidification, unintended consequences, sixth extinction]
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