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Oregon Field Guide

Dead Zones


For almost 6 weeks a huge section of the Oregon coast turned deadly. A catastrophic drop in the oxygen levels of the water resulted in what scientists call a dead zone. Overpopulation caused a massive die off of microscopic algae in this area. Algae corpses sucked up all of the oxygen in the water and kicked off a domino effect. Scientists use modern technology to determine what exactly caused the algae to multiply in the first place.

First Broadcast: 2003
Producer: Newman

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Part of Episode

Bend Badlands; Dead Zones; Portland Sewers

Oregon Field Guide: Episode #1411
Original Broadcast: August 9, 2007