Explore data and historical trends of river, dam and reservoir conditions.

This is the fourth largest cumulative adult count to date in the last 10 years.

— a record number of chinook salmon passed bonneville dam during their fall migration up the columbia river this year, according to the u. s.

Click on a species followed by the symbol to view the dart adult passage data inventory for the species at bonneville for all.

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The tail end of the 2024 columbia sockeye run whacked away the old record count of the salmon at bonneville dam.

Presents current columbia basin chinook, steelhead, sockeye and coho adult passage counts with the ten year averages at bonneville, mcnary, ice harbor, lower granite, priest rapids,.

What is it and why does it matter?

— they count adult salmon, steelhead, shad, lamprey, and other species.

Four Fascinating Facts About Bonneville Dam | USA River Cruises

The data collected from the fish count is essential for understanding the health of the fish populations.

— a total of 23,401 fall chinook have been counted at bonneville dam through tuesday with daily counts from 966 fish on saturday to 4,455 on monday, but trending.

— the latest count shows 591,134 sockeye have passed bonneville dam through july 11 with daily counts only recently declining below 10,000 fish per day.

— bonneville dam passage through september 2 totals 131,093 adult and17,046 jack fall chinook.

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View the daily 2024 bonneville adult passage counts.

The total count is greater than.

Examining the impact of the.

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📸 Image Gallery

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While the total number of steelhead that came through bonneville dam fish counter in 2022 was 117,487 up from the 68,647 in 2021, but the five year average is still.

Understanding how the bonneville dam fish count works;

Army corps of engineers.

— introduction to bonneville dam fish count:

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— new record bonneville sockeye count set sunday.

Portland district publishes the fish counts taken at the dams in annual fish passage reports, as daily, monthly, and yearly count totals of fish migrating upstream through the.