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.

New Research by HFF Scientists and Interns

Christina Morrisett

Sep 20

New Research by HFF Scientists and Interns

Summary. New research by HFF scientists and interns demonstrates how adopting center-pivot sprinkler irrigation over the last 40 years...

124 views

Jamie Powell

Aug 3

Henry's Fork Weekly River Updates

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

605 views

Henry's Fork Mid-Summer River Update: 2023

Rob Van Kirk

Aug 1

Henry's Fork Mid-Summer River Update: 2023

Water supply, fishing conditions, and river health as of July 2023. July 2023: Was warm and dry, with natural streamflow 17% below...

76 views

Temperature Monitoring in HSP: Let's Get the Summer Rolling!

Mike Hensley

Jun 29

Temperature Monitoring in HSP: Let's Get the Summer Rolling!

The people have spoken We have gotten a lot of feedback and concern regarding the temperature of the water affecting the trout in the...

61 views

FAQ: Trout and Insect Populations in Box Canyon and the Ranch

Jamie Powell

Jun 28

FAQ: Trout and Insect Populations in Box Canyon and the Ranch

NOTE: This information is for the Box Canyon and greater Ranch reaches (roughly Island Park Dam to Riverside). Trout populations in...

217 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? Turbidity can be: Mineral sediment mobilized from reservoir bottom or suspended in...

747 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...

480 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...

245 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...

174 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...

246 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...

202 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...

360 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...

117 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...

133 views

Water Year 2022 Summary: Island Park Reservoir Management

Rob Van Kirk

Oct 5, 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...

134 views

Water Year 2022 Summary: Natural Streamflow

Rob Van Kirk

Oct 3, 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...

17 views

Rob Van Kirk

Oct 2, 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...

20 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...

44 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...

65 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%...

389 views

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