Bay Area biologists remain uncertain about the status of the region’s endangered and threatened coho and Chinook salmon after the recent onslaught of winter rainstorms.
inhibited their research and may have prevented some of the fish from successfully breeding and laying eggs.the Marin Independent Journal the historic storms have not only prevented surveyors from monitoring the numbers of coho and Chinook salmon for several weeks but also apparently damaged a number of their spawning beds, which are referred to as redds, in Marin County, home to the largest population of coho salmon from Monterey Bay to the Noyo River in Mendocino County.
“Unfortunately, we know of some redds that definitely were destroyed and we suspect that others were destroyed and the eggs washed away,” Ettlinger told the Marin Independent Journal. On the other hand, he noted, the rainfall has provided plenty of water in the creeks and streams where the fish hatch and spawn, helping some of them to survive and reproduce, though exactly how many were able to do so is still unknown. At last count, Ettlinger and his team recorded 99 coho egg nests in Lagunitas Creek, a 24-mile stream where the fish spawn every winter. That number is higher than in past years but still considered below average.
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