Rob Van Kirk
Oct 13, 2020
Water Year 2020: 92% of Average Supply
Climate: Record-breaking cold in October, a generally dry winter, a 9th-inning rally that brought snowpack up to average just in time for...
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Rob Van Kirk
Aug 3, 2020
Why Have Insect Hatches Improved So Much in 2020?
Percent mayflies, stoneflies, and caddisflies in invertebrate samples at Osborne Bridge averaged 57% in 2019, compared with 41% during...
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Bryce Oldemeyer
Feb 6, 2019
Yellowstone Cutthroat Trout Management on the South Fork Snake River
Highlights Fall IDFG surveys estimated Rainbow Trout and Rainbow x Yellowstone Cutthroat Trout Hybrid abundances nearly doubled in 2018...
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Rob Van Kirk
Dec 10, 2018
The Paradox of Irrigation Efficiency
Diversion from the Henry's Fork has decreased 30% over the past 40 years, yet consumptive use of water by crops has increased, there is...
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Rob Van Kirk
Apr 20, 2017
Summer 2017 Streamflow Predictions: Much Better than 2016
To provide streamflow information for all river stakeholders, we have constructed a computer simulation model of the Henry’s Fork...
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Rob Van Kirk
Mar 19, 2017
Timing of snowmelt: Why is it Important and What Do We Know About it?
Timing of snowmelt runoff affects river ecology, trout behavior, fishing experience, and mid-summer streamflow in natural and regulated...
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Christina Morrisett
Jul 11, 2016
Buffalo River - Spring Monitoring Summary
Spring monitoring of the Buffalo River Fish Ladder took place from February 18 to June 15, 2016. The trap at the top of the ladder was...
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Christina Morrisett
Dec 4, 2015
Winter on the Henry’s Fork: Flow, Temperature, and Trout
By Christina Morrisett and Rob Van Kirk During the Thanksgiving Holiday, we received a number of calls from concerned anglers about low...
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Rob Van Kirk
Oct 21, 2015
Better Groundwater Management Means Better Fisheries
A few months ago I was contacted by Michael Downey, a water resources planner in Montana's Department of Natural Resources Conservation...
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