Monterey Bay Aquarium Study: Gaps in kelp cover may threaten the recovery of California sea otters

A new study by Monterey Bay Aquarium researchers indicates that gaps in the kelp canopy may be a contributing factor in the increase in southern sea otter mortality from white shark bites in California. Research suggests sea otters have reached carrying capacity throughout much of the center portion of their California range. Sea otter range […]

USGS and NASA Collaborate to Develop New High-Tech Flipper Tag to Study Social Networks of Sea Otters

In the Future of Wildlife Tracking, Sea Otters Have Their Own Social Network Whereas we might carry cell phones or tablets, each sea otter has a small, solar-powered tag clipped carefully to one of its flippers. When the sea otters gather to nap at the ocean’s surface, their tags boot up, and check in with […]

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California Sea Otter Numbers Decline, Hurdles for Population Recovery Remain

Abstract: The 2017 census of southern sea otters (Enhydra lutris nereis) was conducted between late April and early July along the mainland coast of central California and in April at San Nicolas Island in southern California. The 3-year average of combined counts from the mainland range and San Nicolas Island was 3,186, down by 86 sea […]

California Sea Otter Fund: $3 Million and Counting…

Since it’s inception in 2007, the California Sea Otter Fund has provided critical support for sea otter research and conservation. The Fund has raised over $3 million through the generous and continued support of otter-loving Californians. Each year the Fund must meet a target goal in order to stay on the tax form the following year so please consider making a […]

Energetic Demands of Rearing a Pup Push Sea Otter Moms to the Limit

A new study conducted by researchers from UC Santa Cruz, U.S. Geological Survey and the Monterey Bay Aquarium finds the energetic cost of rearing a sea otter pup is significantly higher than previously estimated.  Just how hard do otter moms work?  The study, published in the Journal of Experimental Biology, reveals a sea otter mom’s […]

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Seaotters.com is dedicated to raising awareness about California's threatened sea otters and the role research plays in the species recovery and conservation. It's a collaboration of the Monterey Bay Aquarium, U.C. Santa Cruz, U.C. Davis, U.S. Geological Survey, U.S. Fish & Wildlife Service, California Department of Fish and Wildlife, among others. Seaotters.com is also home of the world's first HD live stream of southern sea otters in the wild.