Kelp, Seagrass, Crabs, and Conservation along California's Coastline with Dr. Brent Hughes, Sonoma State University Professor & Marine Biologist

Resilient Earth Radio & Podcast

Resilient Earth Radio & Podcast
Kelp, Seagrass, Crabs, and Conservation along California's Coastline with Dr. Brent Hughes, Sonoma State University Professor & Marine Biologist
Aug 14, 2025 Season 1 Episode 46
Planet Centric Media

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Dr. Brent Hughes takes us on a fascinating journey through California's coastal ecosystems, revealing the unexpected ways sea otters transform their environments. As an Associate Professor at Sonoma State University with a background spanning from the center of landlocked Kansas to the rugged Pacific coast, Hughes brings unique perspective to marine conservation.

The conversation explores how foundation species like kelp, seagrass, and salt marshes create the physical structure that supports entire ecosystems. Hughes shares his groundbreaking discovery that sea otters prevent coastal erosion by consuming burrowing shore crabs – research so significant it earned the cover of Nature magazine. These "crab condos" weaken marsh banks, but when otters remove the crabs, the marshes stabilize. It's a perfect example of how restoring natural food webs can solve environmental problems that human intervention struggles to fix.

California's sea otter population faces a precarious future, stalled at just 3,000 individuals despite historical numbers likely reaching 20,000-30,000. The culprit? What Hughes calls the "white shark gauntlet" preventing otters from expanding their range north or south of central California. His research suggests San Francisco Bay alone could support twice the state's current population, reveali

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Foreign Policy's The Catch Podcast
As the fishmeal industry grows, local communities’ food security suffers, communities are impacted.

Flukes International Whale Tours
Multi-day marine mammal education, research and conservation tours to exotic places with Zack Klyver

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