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  • Science Featured

    TU trout population estimation model used for humans

    It’s safe to say no one thought the model created for trout would end up estimating human populations in remote areas of Africa.

    Scientists often use models created by others to do conservation work, but sometimes they create new methods to obtain specific information for their needs. Trout Unlimited scientists recently collaborated with a group of outside scientists to estimate abundances for trout populations across the entire range of a threatened Lahontan cutthroat. It’s safe to say no…

  • Featured

    We are TU: Meet Ryan Heisler

    How 'growing up with Trout Unlimited' leaves a mark

    We care about clean water, healthy fisheries and vibrant communities. We roll up our sleeves to volunteer, we sit on our boards, and we strategize as members and leaders of staff. We want you to join us.     Thanks to initiatives such as TU’s decades-old Women’s Initiative – now Diversity and Inclusion Initiative – and those of our partners, new groups…

  • Science Conservation TROUT Magazine

    Lahontan cutthroat a poster child for modeling extinction risk

    Researchers work to gather data on Lahontan cutthroat trout. Jason Barnes/Trout Unlimited Determining the conservation needs of at-risk wildlife species is complicated business. Federal and state wildlife agencies—and their partners — need to assess the unique characteristics of different populations to understand the conservation needs of a given species. They typically ask questions like: “Which…