A serendipitous weather pattern three years ago has resulted in the Lagunitas Creek watershed’s second-most prolific coho salmon spawning season since officials began counting the endangered species in 1982.
So far this season, ecologists have tallied 593 redds, or nests—the most since the winter of 2004 to 2005, when they documented 634.
The salmon that return to the watershed each year were born three years before, and this year’s cohort, it turns out,…