Infographics & the West

Diminishing Kelp Cover is a Warning Sign

The state of California conducts regular aerial photographic surveys of the kelp canopy off of rocky coastlines. According to state surveys and closer study by researchers at UC Davis and the state Department of Fish and Wildlife, kelp cover has declined drastically along the state’s northern coast. The map below shows the statewide picture over four separate survey years, and close-ups of four key locations.

Related article: Hitting Rock Bottom: The Disappearance of California’s Underwater Forests

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