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» babble   » right brain babble   » humanities & science   » Dead zones in the oceans getting much larger

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Author Topic: Dead zones in the oceans getting much larger
Brian White
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posted 28 October 2006 09:09 PM      Profile for Brian White   Author's Homepage     Send New Private Message      Edit/Delete Post  Reply With Quote 
I saw in a science magazine that the dead zones may be a really serious issue. Nitrates are currently going into the seas round the world at a super high rate. Then you get algal blooms and all that plant crap dies and falls to the bottom where anerobic bacteria lap it up. The result is a high sulphide zone of death with almost no oxygen disolved in the water.
Scientists think that in the past such conditions spread so much that the entire ocean became a dead zone with anerobic bacteria replacing algae as the bottom of the food chain. A very short food chain that sucked oxygen out of the atmosphere and eventually affected life on land badly too!

From: Victoria Bc | Registered: Jan 2005  |  IP: Logged

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