Dead Waters of Oregon
Waters low in Oxygen have created a death trap for aquatic life off the coast of Oregon. This has been occurring since the summer of 2002. Deep sea fish and crabs that don’t move away from these waters die out. If the situation continues it might extend unto the Washington shores. Jane Lubchenco, a marine biologist at Oregon State University in Corvallis said :
“This is the first year we’ve seen the dead zone expand,”
It’s something unusual triggering this unnatural, deadly phenomenon the answer is upwelling, a natural process of moving ocean currents that might result in Dead Zones. Some experts think the shifting winds are changing the timing of the upwelling, and in turn, the size of the dead zone.
One theory is that bacteria feeding on dead plankton(that sank due to early upwelling) used up the oxygen. These oxygen depleted waters then end up next to the shores due to upwelling. Oregon’s oxygen-poor area is one of nearly 150 dead zones that pop up around the world.
Another might nitrogen and phosphorous dumped as industrial wastes by human activities into the sea.
Either way all attempts should be made to bring alive these dead zones.
Still others think that all this is a result of Global Warming.
Thanks: Cameron Walker
Via: National Geographic
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