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  • Climate Change & Fish: How to Assess Stream Health
    Look at the stream's temperature. As the climate warms, stream temperatures are rising, which can stress or even kill fish. The ideal temperature range for most trout and salmon species is between 50 and 60 degrees Fahrenheit. When stream temperatures exceed 68 degrees Fahrenheit, fish start to experience stress, and when temperatures reach 77 degrees Fahrenheit, they can die.

    Check the stream's flow. Climate change is also causing changes in precipitation patterns, which can lead to changes in stream flow. Some streams are experiencing more flooding, while others are experiencing more drought. Both of these conditions can harm fish. Flooding can wash away food and shelter, while drought can reduce the amount of oxygen in the water.

    Look at the stream's habitat. Climate change is also causing changes in stream habitat. For example, warmer water temperatures can lead to the growth of algae and other plants, which can crowd out fish. In addition, changes in precipitation patterns can lead to changes in the amount of vegetation along the stream bank, which can provide shade and cover for fish.

    Consider the presence of invasive species. Climate change can also make it easier for invasive species to establish themselves in new areas. Invasive species can compete with native fish for food and habitat, and they can also spread diseases.

    If you're concerned about the health of your favorite fishing stream, there are a few things you can do to help.

    * Reduce your carbon footprint. This will help to slow the rate of climate change and protect your stream from its effects.

    * Support organizations that are working to protect streams. There are many organizations that are working to protect streams from the effects of climate change. You can donate to these organizations or volunteer your time to help them with their work.

    * Educate yourself and others about climate change. The more people who understand the threats that climate change poses to streams, the more likely we are to take action to protect them.

    By taking these steps, you can help to protect your favorite fishing stream and ensure that future generations can enjoy it as well.

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