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The Napa River is estimated to have historically supported:
The Napa River is estimated to have historically supported:
2,000–4,000 coho salmon
6,000–8,000 steelhead trout
an unknown number of Chinook or king salmon
By the late 1960s:
By the late 1960s:
coho salmon were completely lost to the Napa River
steelhead trout declined to an estimated run of 200 - 2,000 adults.
Chinook salmon are estimated at less than 100 adults observed per year
In 2020...
In 2020...
Napa River salmon and steelhead are now classified as "threatened species " which could lead to local extinction, however tools and strategies to restore their populations are possible.
Napa River salmon and steelhead are now classified as "threatened species " which could lead to local extinction, however tools and strategies to restore their populations are possible.
This year we will explore solutions to restoring native salmon to the Napa River.
This year we will explore solutions to restoring native salmon to the Napa River.
In this Module you will complete 3 activities below:
Review "Wild Salmon of the Napa River" presentation (Storymap - 5 minutes)
Answer questions and watch a short video about biodiversity (EdPuzzle - 7 mins)
Discover ways our health is affected by various environmental factors (Eco-Health Browser - 5 mins)
Create a graph of California's historical Chinook salmon catch rates (Google Sheet - 5 minutes)
1. Where do salmon live in Napa County?
1. Where do salmon live in Napa County?
Scroll the sidebar inside the window below to see where salmon live in the Napa River. If you are having trouble viewing the story, click here to open it in a new tab.
Scroll the sidebar inside the window below to see where salmon live in the Napa River. If you are having trouble viewing the story, click here to open it in a new tab.
2. Why is biodiversity important?
2. Why is biodiversity important?
Watch and complete the EdPuzzle below to learn about the importance of biodiversity in ecosystems and the role of keystone species.
Watch and complete the EdPuzzle below to learn about the importance of biodiversity in ecosystems and the role of keystone species.
3. How does the environment impact your health?
3. How does the environment impact your health?
Click on the Eco-Health Relationship Browser below to open it in a new tab. Explore how different health outcomes are affected by various environmental factors.
Click on the Eco-Health Relationship Browser below to open it in a new tab. Explore how different health outcomes are affected by various environmental factors.
4. How has California's salmon fishery changed?
4. How has California's salmon fishery changed?
Make a copy of the Google Sheet below and complete the questions within the Sheet to see how catch rates of Chinook salmon have changed over time.
Make a copy of the Google Sheet below and complete the questions within the Sheet to see how catch rates of Chinook salmon have changed over time.
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