Full Breakdown
AI-Powered Thermal Cameras Deployed to Protect Gray Whales in San Francisco Bay
5/20/2026, 4:03:48 AM
AI Detection System Deployed in San Francisco Bay
On May 19, a coalition of ocean scientists, the U.S. Coast Guard, whale-tracking experts and ferry operators launched an AI-driven monitoring system in San Francisco Bay. Thermal cameras on Angel Island’s radio tower and on a ferry scan for gray-whale heat signatures and exhalations up to 7 km away. Verified detections trigger automated alerts that ask nearby vessels to slow or change course.
Why Gray Whales Are Entering the Bay
Gray whales (Eschrichtius robustus) normally migrate 16,000 km from Alaska to Mexico without entering the Bay. Since 2018, more whales have stopped in the Bay, likely seeking food after melting sea ice reduced Arctic algae and the amphipods they depend on. This malnutrition coincides with a population drop from about 20,500 in 2018 to roughly 14,500 in 2023.
Key Participants and Technology
The detection algorithm was built by Woods Hole Oceanographic Institution researchers, who later founded WhaleSpotter. WHOI physicist Daniel Zitterbart led AI training with hundreds of thousands of thermal images. UCSB’s Benioff Ocean Science Laboratory, directed by Douglas McCauley, coordinated deployment with the U.S. Coast Guard, ferry operators and local shippers. Rachel Rhodes oversees real-time camera operation.
Scale of the Threat: Mortality and Population Data
In 2025, 21 gray whales were found dead near San Francisco Bay; two-fifths died from ship strikes. By May 2026, seven whales had already been fatally hit by cargo vessels during the peak migration. The species’ numbers fell from roughly 20,500 in 2018 to about 14,500 in 2023, with hundreds of malnourished whales stranded along the West Coast.
Official Coalition Statements
The coalition called the system a science-based, long-term protection that lets commercial traffic continue. U.S. Coast Guard officials said alerts will be added to existing maritime safety protocols. Ferry and cargo operators pledged to adjust speed or routing when warnings appear. Partners framed the effort as a coordinated response to a critical moment in the gray-whale season.
Verbatim Quotes
- “We want as many deployments as possible, because that ultimately means we have better eyes on the ocean,” — Daniel Zitterbart, Physicist, WHOI, Chief Scientist, WhaleSpotter
- “It is heartbreaking to see these starving whales stumbling around in the middle of the hustle and bustle of San Francisco Bay,” — Douglas McCauley, Marine Ecologist, UCSB Benioff Ocean Science Laboratory
- “I’m very glad that the vessel strike issue is being taken seriously.” — Josephine Slaathaug, Whale Biologist, Sonoma State University
What’s Next
Thermal cameras are slated for the Golden Gate Bridge and Alcatraz Island by late 2026, widening coverage of the Bay’s busiest routes. Researchers will fine-tune AI verification to cut false alerts. Performance data will be shared with the U.S. Coast Guard and maritime regulators to assess impact on collision rates. The coalition hopes to adapt the system for other West-Coast migration corridors if results prove effective.
