UN 
On Saturday morning, marine biologists stationed near San Juan Island in Washington State monitored real-time alerts from a new artificial intelligence system designed to recognize the vocalizations of southern resident orcas. This AI technology, deployed by the U.S.-based nonprofit OrcaSound in partnership with Transport Canada, now provides shipping operators with immediate warnings when endangered orcas enter critical zones in the Salish Sea.
The Salish Sea, which straddles the maritime borders of the northwestern United States and western Canada, is home to just 74 southern resident orcas as of this spring. These orcas, classified as an endangered subspecies, are especially sensitive to the underwater noise generated by freight vessels and ferries transiting between Seattle, Vancouver, and smaller regional ports.
Since February 2026, the AI system has been streaming underwater audio from hydrophones placed throughout the orcas’ core habitat, flagging orca presence within 30 seconds of detection. According to data released on May 18th by OrcaSound, over 60% of large commercial vessels in the monitored region have adjusted their speed or rerouted in response to AI alerts during peak orca activity periods this spring.
The project’s backers cite a reduction in average peak underwater noise of up to 5 decibels in targeted corridors during weekends when shipping activity is highest. However, local conservationists caution that full compliance is not universal, and effective enforcement remains a challenge as the busy summer tourist season approaches. Researchers expect to publish a full impact assessment by September 2026, measuring both immediate noise reduction and longer-term effects on orca health and behavior.
The technology’s rollout in the Salish Sea is being closely watched by marine policy experts in Norway and Japan, where similar AI-driven acoustic monitoring pilots are scheduled to expand later this year. For now, the Salish Sea initiative offers a targeted, data-driven approach to SDG 14: Life Below Water, but its long-term efficacy will depend on continued vessel operator cooperation and transparent reporting.
Frequently Asked Questions
What is the purpose of the new AI system monitoring southern resident orcas in the Salish Sea?
The AI system is designed to recognize orca vocalizations and provide real-time alerts to shipping operators when endangered southern resident orcas enter critical zones, aiming to reduce underwater noise from vessels.
How quickly does the AI system detect and alert for orca presence?
The AI system flags orca presence within 30 seconds of detection using underwater audio from hydrophones.
What impact has the AI system had on vessel behavior in the Salish Sea?
Over 60% of large commercial vessels in the monitored region have adjusted their speed or rerouted in response to AI alerts during peak orca activity periods this spring.
Has the AI system reduced underwater noise in the Salish Sea?
The project reports a reduction in average peak underwater noise of up to 5 decibels in targeted corridors during weekends when shipping activity is highest.
What challenges remain for the AI orca monitoring project?
Full compliance by vessel operators is not universal, and effective enforcement remains a challenge, especially as the busy summer tourist season approaches.
