Tag: trout

Lake Yellowstone: Promising News for Native Trout Recovery

Great news on the invasive species front: lake trout in Yellowstone National Park are on the decline, offering a more hopeful future for native fish. A two-year control effort based on the latest fisheries science is paying dividends, researchers say.

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Conserving Lake Trout Among the Philosophers

Can well-managed lakes in the Adirondacks provide important refuges for lake trout in the face of climate change? That’s the focus of a new intensive research effort being conducted at Follensby Pond, where philosophers once pondered life’s mysteries.

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Where the River Meets the Road: Reconnecting Adirondack Brook Trout Streams

Road culverts may not be sexy. But in the Adirondacks, simple fixes in culvert design could reconnect miles of habitat for brook trout, one of the most iconic fishes of eastern streams, and prevent flooding during severe storms.

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Salmon Cam: A Live Look at Migrating Fish

Watch salmon return after a long absence to California’s Shasta Big Springs Ranch, thanks to Nature Conservancy restoration projects! Enjoy our Salmon Cam for a live, underwater look at migrating steelhead trout and Chinook and coho salmon.

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Notes from Silver Creek: Computer Modeling for Stream Conservation

What effects will land use changes have on a stream and its wildlife? How do conservation managers know what will happen in a stream when a restoration project takes place? Will it really lower water temperatures? Will fish thrive?

Surely conservationists can’t see into the future? 

Actually, stream managers now use sophisticated computer modeling to predict the outcomes of their activities. These models allow them to see how planting native shrubs, for instance, will alter stream flows and water temperatures.

In 2010, The Nature Conservancy was contacted by Maria Loinaz, a PhD candidate  at the Technical University of Denmark and the University of Idaho.  She was interested in developing a hydrologic model of the Silver Creek watershed using software called MIKE SHE/Ecolab.

This software is changing the way stream managers engage in restoration. It incorporates data on both groundwater and surface water, including stream flow, precipitation, vegetation and soils to accurately predict the effects of a new activity on a stream.

Maria proposed using the MIKE SHE program to model the groundwater and surface water systems and use the EcoLab program to build a water temperature model. Together these would allow her to model what happens to stream temperatures when riparian buffers were planted or stream flows increased.  Maria also wanted to incorporate fish data to see whether she could model where, based on the hydrology and temperature, fish would thrive in the system.

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Call for Inclusive Conservation
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TNC Lead Scientist Heather Tallis is researching how to make people see nature as critical to life through three lenses: education, water and poverty.

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