Threat of Oxygen-Poor 'Dead Zones' Surfacing on BC Central Coast
The spectre of low-oxygen “dead zones” is surfacing along BC’s Central Coast, threatening the region’s rich marine ecosystems and fisheries.
Widespread hypoxia — when oxygen levels in the ocean fall below levels required by marine life — is being detected in the deep waters of Queen Charlotte Sound for the first time, said Sam Stevens, an oceanographer at the Hakai Institute and lead author of a new study.
Aggravated worldwide by climate change since warmer oceans generally hold less oxygen, marine hypoxia is now beginning to impact the sound, sandwiched...
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