Category

Science | Page 28

  • Conservation

    Drastic action for Washington kokanee

    Bill Wayman (USFWS) demonstrating how to cryopreserve milt to the Kokanee Supplementation Group. Bill is showing how to handle the Dewar and the technique to properly freeze milt. By David Kyle Trout Unlimited is involved in some pretty cool species conservation work in Washington. Lake Sammamish Kokanee (non-anadromous sockeye salmon) are a unique species which,…

  • Conservation

    A vital climate report and TU’s unsung song

    The fourth National Climate Assessment released by the government last week details the current and future impacts of climate change on the planet, including calamaties like increased and more intense wildfires, something we've seen plenty of this year. Photo courtesy Wikipedia Commons. By Helen Neville No amount of couch-ridden lethargy or Black Friday shopping could…

  • Conservation

    TU supports final plan for Asian carp barrier in Illinois

    The U.S. Army Corps of Engineers has released its final recommendation report for improvements to be made at the Brandon Road Lock and Dam in Joliet, Ill., to prevent the movement of invasive Asian carp into the Great Lakes. Trout Unlimited supports the final draft recommendation, which includes a few significant changes from the original…

  • Conservation

    Impacts of climate change on tailwaters

    By Michael Riley Tailwaters are known for their ability to provide clean, cold water conditions suitable to support robust trout populations. Tailwaters can provide cold water during dry conditions and also help negate the effects of flooding. But as drought and flash flooding become more extreme with climate change even tailwaters have their limits, leaving…

  • Science

    Remote sensing will revolutionize trout conservation

    Remote sensing is being used to measure improvement in Lahontan cutthroat trout habitat in Nevada. By Dan Dauwalter, Kurt Fesenmyer and Helen Neville Have you ever assisted your local DNR biologist with a painstaking habitat survey on your favorite trout stream where you tediously measured the stream channel, substrates, wood, undercut banks, and so on?…

  • Science

    Restoring streamside vegetation using grazing and beavers

    Ranchers, Bureau of Land Management staff, and other partners tour Susie Creek in 2012.Photo courtesy Carol Evans/BLM. If you hang around a Bureau of Land Management biologist near a stream long enough, you are bound to hear the acronym PFC. Proper Functioning Condition is a long-standing rapid assessment the BLM uses to evaluate the overall condition or…

  • Climate Change

    Climate change and Nevada’s Walker Lake

    The relationship between fish, people and water in Nevada is a sordid tale, with Walker Lake, nestled in the western corner of the state, as a particularly interesting character.  Walker Lake historically sustained one of the few lake-form populations of Lahontan cutthroat trout, growing large predatory trout similar to the much-famed Pyramid Lake just to…