H3
@hhhansen.bsky.social
Ecosystem Program Lead with the Upper Mississippi River Basin Association. I help recover impacted river ecosystems ∙ I tweet about #ecology #rivers #fish #SciArt #bayesian #R ∙ ⚠️H3❤️👉🐻
It's always good for ecologists to play with a different ecosystem for a weekend!
October 20, 2025 at 3:13 AM
It's always good for ecologists to play with a different ecosystem for a weekend!
One of my favorite stops at the Minnesota state fair is the fish pond at the dnr building.
September 1, 2025 at 11:46 AM
One of my favorite stops at the Minnesota state fair is the fish pond at the dnr building.
Found another cool surface water map for the Upper Mississippi River! This one is from the 1960's!
June 30, 2025 at 6:17 PM
Found another cool surface water map for the Upper Mississippi River! This one is from the 1960's!
They don't make river plots like this anymore. 🤩
April 22, 2025 at 12:53 PM
They don't make river plots like this anymore. 🤩
There's now a package to make your own river elevation models in python! github.com/OpenTopograp... As a river restoration scientist this is super helpful in identifying the underlying behavior of a river. Below is an example of Pool 1 in the Mississippi River.
April 11, 2025 at 6:43 PM
There's now a package to make your own river elevation models in python! github.com/OpenTopograp... As a river restoration scientist this is super helpful in identifying the underlying behavior of a river. Below is an example of Pool 1 in the Mississippi River.
This is how I feel when I start up a new programming language to learn. 🤣
March 12, 2025 at 1:19 PM
This is how I feel when I start up a new programming language to learn. 🤣
Definitely check out the atlas feature in QGIS to mass produce data driven maps. In my river restoration work I created a template map that compares modern aerial imagery to a historic 1890 ground survey of the Mississippi River but QGIS spits out the comparison at every river mile, all 855! #rivers
February 12, 2025 at 7:54 PM
Definitely check out the atlas feature in QGIS to mass produce data driven maps. In my river restoration work I created a template map that compares modern aerial imagery to a historic 1890 ground survey of the Mississippi River but QGIS spits out the comparison at every river mile, all 855! #rivers
Not everyday you find a fish at 40 feet deep on the lake bottom!
January 31, 2025 at 12:19 PM
Not everyday you find a fish at 40 feet deep on the lake bottom!
I have always said a time machine would be the best tool for a restoration ecologist. Historical maps are the closest thing that can help us picture the past. Check out the USGS historic map viewer for the Upper Mississippi River. Below is an example comparison.
January 15, 2025 at 7:36 PM
I have always said a time machine would be the best tool for a restoration ecologist. Historical maps are the closest thing that can help us picture the past. Check out the USGS historic map viewer for the Upper Mississippi River. Below is an example comparison.
Does anybody else love older ecology books? This gem is from Ecological Methodology by Krebs.
January 13, 2025 at 7:25 PM
Does anybody else love older ecology books? This gem is from Ecological Methodology by Krebs.
Here is my contribution to sundayfishsketch
January 13, 2025 at 7:20 PM
Here is my contribution to sundayfishsketch
I'm grateful to attend the MN DNR roundtable. For those of you that haven't heard, this last November, Minnesotans overwhelmingly voted to support the lottery driven conservation fund for the state. It is one of the only times in the state's history where every county approved it. #conservation
January 10, 2025 at 4:42 PM
I'm grateful to attend the MN DNR roundtable. For those of you that haven't heard, this last November, Minnesotans overwhelmingly voted to support the lottery driven conservation fund for the state. It is one of the only times in the state's history where every county approved it. #conservation
Isn't it crazy how much the Mississippi River has changed in the last two centuries? Check out this graphic on sediment dynamics. #rivers
January 7, 2025 at 1:45 PM
Isn't it crazy how much the Mississippi River has changed in the last two centuries? Check out this graphic on sediment dynamics. #rivers
Nothing like finding a cool river map from an old USGS report. This one is from 1901.
December 20, 2024 at 3:08 PM
Nothing like finding a cool river map from an old USGS report. This one is from 1901.
Even though I'm technically not in academia anymore, I'm very happy to see that I reached the 100 citations mark on google scholar today.
December 9, 2024 at 2:20 PM
Even though I'm technically not in academia anymore, I'm very happy to see that I reached the 100 citations mark on google scholar today.
Learning how to restore river side channels and island complexes in the Mississippi River right outside Alton, Illinois!
November 19, 2024 at 10:07 PM
Learning how to restore river side channels and island complexes in the Mississippi River right outside Alton, Illinois!
There's something really pleasant about a cozy warm greenhouse in the fall.
November 12, 2024 at 12:38 PM
There's something really pleasant about a cozy warm greenhouse in the fall.
Here was my office yesterday, scouting the Klarälven for a field study commencing this summer. Lots of restored river sections as well as a couple dams. Let's see if we can help the salmon with their migration. 🐠
May 29, 2024 at 7:20 AM
Here was my office yesterday, scouting the Klarälven for a field study commencing this summer. Lots of restored river sections as well as a couple dams. Let's see if we can help the salmon with their migration. 🐠
Got the test print of my dissertation!
March 18, 2024 at 3:20 PM
Got the test print of my dissertation!
It's pretty cool seeing @jacsciart.bsky.social logo design on the big plenary screen for the oikos meeting!
March 14, 2024 at 7:35 AM
It's pretty cool seeing @jacsciart.bsky.social logo design on the big plenary screen for the oikos meeting!
Come check out Jen's booth at the world fisheries congress! @jacsciart.bsky.social @amfisheriessoc.bsky.social
March 4, 2024 at 10:02 PM
Come check out Jen's booth at the world fisheries congress! @jacsciart.bsky.social @amfisheriessoc.bsky.social
Saw my first spinning ice disk today in the local park!
February 9, 2024 at 12:55 PM
Saw my first spinning ice disk today in the local park!