Western gray whale detections in western Pacific
June 8, 2026
Gray whale vocalizations are well-known and have been detected on mobile U.S. Navy passive acoustic monitoring (PAM) systems for decades. Gray whales produce highly variable and complex signals. Given some historical and conservation interest in the overall distribution and migratory patterns and behaviors of gray whales in the north Pacific, the Navy has conducted systematic monitoring for the calls of gray whales in times and areas that would inform species distribution patterns.
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Behavioral Response Research Evaluation Workshop II (BRREW II)
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