Research and Monitoring

HFF BLOGS

Scroll through to read the most recent HFF Blogs and articles. Or click on the keywords at the top of the page to sort blogs and articles by topic.

Jamie Powell

May 11

Henry's Fork Weekly River Updates

Below are examples of past river update emails. This week's most current email is in inboxes now. To opt-in to receive these weekly...

269 views

FAQ: Turbidity, Sediment, and Island Park Reservoir

Rob Van Kirk

Apr 20

FAQ: Turbidity, Sediment, and Island Park Reservoir

What's the difference between turbidity and sediment? Not all turbidity is sediment, and in spring, late summer, and fall it is most...

573 views

Aquatic Insect (Macroinvertebrate) Data Results: 2015-2022

Jamie Powell

Mar 9

Aquatic Insect (Macroinvertebrate) Data Results: 2015-2022

Beginning in 2015, the Henry’s Fork Foundation, in consultation with River Continuum Concepts, established an annual aquatic insect...

387 views

Jamie Powell

Feb 16

The Henry's Fork in 2022

What You Might Have Missed We share a lot of information about the river throughout the year, and we know it can be a lot. In case you...

226 views

Jamie Powell

Jan 12

Top 10 for 2022

At the end of each year, the Henry's Fork Foundation (HFF) takes a moment to reflect back on some memorable events and accomplishments...

167 views

The Year 2022 in Review: Can you say "cold, wet spring?"

Rob Van Kirk

Jan 3

The Year 2022 in Review: Can you say "cold, wet spring?"

A cool, rainy sunset at Vernon Bridge in May. Climate. Peak snow water equivalent (SWE) was 71% of average and 3rd lowest in the...

235 views

Harmful Algal Blooms and Island Park Reservoir

Jamie Powell

Oct 28, 2022

Harmful Algal Blooms and Island Park Reservoir

A recent Hatch Magazine article discussed the occurrence of harmful algal blooms (HABs) or cyanobacteria in Henrys Lake primarily, but...

137 views

When does the river freeze in winter and does ice affect trout?

Jamie Powell

Oct 27, 2022

When does the river freeze in winter and does ice affect trout?

This information was first published in an HFF blog by Christina Morrisett and Rob Van Kirk in 2015. When does the river freeze? As far...

231 views

Jamie Powell

Oct 12, 2022

Programs and Impacts -- 2022

We continue to try to share as much information as possible in as many ways as possible, to try to reach everyone who might be...

104 views

Changes to Lower River Management Benefit Upper River

Christina Morrisett

Oct 6, 2022

Changes to Lower River Management Benefit Upper River

Highlights: The lower river between St. Anthony and Parker is an important summer management lever for Island Park Reservoir. The Drought...

104 views

Water Year 2022 Summary: Island Park Reservoir Management

Rob Van Kirk

Oct 6, 2022

Water Year 2022 Summary: Island Park Reservoir Management

Headlines: Winter inflow to Island Park Reservoir was the second lowest in the 1934-2022 record, but the outflow of 220 cfs was higher...

48 views

Water Year 2022 Summary: Natural Streamflow

Rob Van Kirk

Oct 4, 2022

Water Year 2022 Summary: Natural Streamflow

Headlines: Natural streamflow was 72% of average, ranking as the driest year in the 1978-2022 record. By subwatershed, natural flow was...

14 views

Rob Van Kirk

Oct 3, 2022

Water Year 2022 Summary: Climate

Headlines: Peak snow water equivalent (SWE) was 71% of average and 3rd lowest in the 1989-2022 record, but SWE peaked on April 24, 12...

18 views

Jamie Powell

Sep 14, 2022

Why has turbidity been high this year?

The short answer: A record cold spring, followed by extreme heat and record dry conditions contributed to a need for high outflow from...

42 views

Major weather change brings potential for sediment delivery at Island Park Dam

Rob Van Kirk

Sep 8, 2022

Major weather change brings potential for sediment delivery at Island Park Dam

A major weather pattern change away from recent record-breaking heat to more seasonable early-autumn conditions brings with it the...

55 views

How Drought Affects the Henry's Fork: A unique case among western rivers

Jamie Powell

May 3, 2022

How Drought Affects the Henry's Fork: A unique case among western rivers

What is the state of the drought in the Henry’s Fork Watershed? As of early April, water year precipitation sat at 79% of average (21%...

350 views

The Upper Henry’s Fork Project: bottlenecks limiting fish populations

Jack McLaren

Mar 4, 2022

The Upper Henry’s Fork Project: bottlenecks limiting fish populations

This is the second blog in a series about research activity in the Upper Henry’s Fork. Click here for part 1 and stay tuned for the next...

715 views

The Upper Henry’s Fork Project: uncovering the diamond in plain sight

Jack McLaren

Feb 4, 2022

The Upper Henry’s Fork Project: uncovering the diamond in plain sight

Background: Since 2018, PhD student Jack McLaren (that’s me!) has been working with the Foundation to understand what restricts fisheries...

419 views

Jamie Powell

Jan 19, 2022

HFF's Top 10 for 2021

At the end of each year, the Henry's Fork Foundation (HFF) takes a moment to reflect back on some memorable events and accomplishments...

191 views

Henry's Fork Macroinvertebrate Monitoring, 2020 & 2021

Bryce Oldemeyer

Jan 13, 2022