Water Quality

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.

Jasper Davis

Aug 31

Macrophyte FAQ

Throughout August-September, there tends to be a lot of rooted aquatic plant (macrophyte) growth. These plants grow rapidly as they...

69 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

Jasper Davis

Jul 10

FAQ: IRRIGATION

Why do you sometimes see fields being irrigated (watered) while it is raining? Isn’t this a waste of valuable water? This question is...

92 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

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

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

Henry's Fork Water Supply: Lowest water supply since 2001 and possibly 1934

Rob Van Kirk

May 3, 2022

Henry's Fork Water Supply: Lowest water supply since 2001 and possibly 1934

Each spring, Dr. Rob Van Kirk analyzes water supply data for the water year so far (Oct 1 - April 1) to assess the water situation and...

413 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...

880 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...

475 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...

199 views

Henry's Fork Macroinvertebrate Monitoring, 2020 & 2021

Bryce Oldemeyer

Jan 13, 2022

Henry's Fork Macroinvertebrate Monitoring, 2020 & 2021

Highlights In 2020, HFF staff were unable to collect macroinvertebrate samples at Ashton, Ora, and St. Anthony due to Covid-19. HFF staff...

395 views

Water Year 2021: Average reservoir carryover with a 2016 water supply

Rob Van Kirk

Jan 7, 2022

Water Year 2021: Average reservoir carryover with a 2016 water supply

Water year 2021 turned out to be as dry or drier than 2016 by most measures, yet Island Park Reservoir volume on September 30 was just a...

133 views

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