During the 2024–2025 spawning season, endangered Central California Coast coho salmon (CCC coho) migrated to Mendocino Coast rivers in numbers few scientists thought they would see in their careers. Monitoring teams estimated that more than 30,000 adult coho returned, double the previous season’s record-breaking return of 15,000 coho. These numbers represent a significant leap from the past decade, where as few as 3,000 fish returned annually.
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