H3
@hhhansen.bsky.social
450 followers 490 following 130 posts
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❤️👉🐻
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hhhansen.bsky.social
One of my favorite stops at the Minnesota state fair is the fish pond at the dnr building.
Reposted by H3
martynwarren.bsky.social
As a hobby artist who devotes waaay too many hours to an economically-unviable past-time, I have to take my victories where I can. So seeing my drawings in an exhibition and genuinely feeling that they belonged there (quality-wise) was a fantastic experience that I'll treasure for a long time.
A Really Very Proud Indeed Martyn standing in front of 2 mantis drawings at the Southern Nature Art Exhibition. The mantises shown are the brown dead leaf mantis and the rainbow coloured iridescent bark mantis.
hhhansen.bsky.social
Hi #river #ecologists and #geomorphologists, is there an R or python package that can take in DEM or topo data to extract possible historic islands, side channels, and backwaters? Thanks!
hhhansen.bsky.social
Found another cool surface water map for the Upper Mississippi River! This one is from the 1960's!
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jacsciart.bsky.social
I've been camping almost every weekend as of late so haven't been able to post #SundayFishSketch, but here is an edited version of my Rainbow Trout illustration with altered coloring in honor of #PrideMonth.
An illustration of a Rainbow Trout, but instead of the realistic coloring on the body, the colors make a rainbow in honor of Pride month.
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jvwilkening.bsky.social
Recently, all the AAAS Science & Tech Policy Fellows at EPA were terminated from our positions with little notice and for no clear reason. This effectively ended a partnership that had been going since 1980 and which had brought hundreds of scientists to the EPA as fellows, many of whom stayed. 1/7
hhhansen.bsky.social
I'm definitely going to give it a stab in R. Happy to connect if you move forward on it too!
hhhansen.bsky.social
They don't make river plots like this anymore. 🤩
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jacsciart.bsky.social
Have been working on an illustration of Chiasmodon niger and decided to modify it a bit to fit today's #SundayFishSketch theme.
An in progress illustration of a Black Swallower fish. This fish lives in the deep sea and is brown to black in color with a long, thin body. It has a pretty large eye and very large mouth that leads to a stomach that can extend to several times its regular size, sometimes even becoming partly transparent. This allows the fish to eat prey larger than itself. In this illustration, I added some colorful Easter eggs in its stomach to fit with the Sunday Fish Sketch theme.
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jacsciart.bsky.social
I don't go fishing, but I would love to see an American Paddlefish for today's #SundayFishSketch

#SciArt
An illustration of an American Paddlefish. The viewer is looking slightly up at the fish as it swims by. The bottom of the water body is full of silt and small stones. The water is a murky turquoise color, and sunlight illuminates the top of the fish.
hhhansen.bsky.social
I'm so glad to see #sundayfishsketch themes again!
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lampichthys.bsky.social
This weekend’s #SundayFishSketch #Fishytheme is for all of us that are very much looking forward to spring and summer angling. Sitting in the boat or on the dock, enjoying nice weather and nature sounds. Let’s see some sketches of fishes you’d like to catch this year (wherever you are)! #sciart 🦑
a man in a red hat is fishing in a pond
ALT: a man in a red hat is fishing in a pond
media.tenor.com
hhhansen.bsky.social
I spent an embarrassinly long time just trying to get the gdal package updated to the latest version, which the riverrem package needed
hhhansen.bsky.social
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.
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lampichthys.bsky.social
1/2) An apology to my #SundayFishSketch community for dropping the ball on #Fishytheme posts and participation. My time has been focused on my first semester teaching as a professor. We also purchased and moved into a new home. To top it off, I have a little fry incoming at the end of September.
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joshuasweitz.bsky.social
Working with an interdisciplinary team, we have developed a website to communicate how the White House's proposed cuts to health research would cause losses of $16B and 68,500 jobs.

Find out how your community may be impacted.

Explore more at SCIMaP: scienceimpacts.org

a 🧵
US map via scienceimpacts.org visualization of economic loss due to IDC cuts to 15% as part of Feb 7, 2025 executive order, with shading denoting intensity of cuts.
hhhansen.bsky.social
Please share around to support our federal workers!💪
jacsciart.bsky.social
It feels strange to draw fish right now when the country I live in is seemingly plummeting into authoritarianism. So I drew something else, and today it’s finally done. Federal workers deserve to be treated better, and we need the federal agencies that this administration is so intent on destroying.
An illustration dedicated to federal employees and the federal agencies being targeted by Musk and Trump. The illustration is a circle. The outer band of the circle is navy blue with 50 white stars in a ring. Inside that band is a simplified landscape. There are white clouds (representing the National Weather Service) on the left side that intersect with a simplified mountain range (representing the Bureau of Land Management). Inside of the clouds are bright blue lines that make up the facial profiles of two people, which represent the Department of Health and Human Services. The sky is light blue, and a gull that is reminiscent of the NOAA logo flies just below three stars, meant to represent NASA. The mountains morph into a simplified field. The field is made of bands of light and forest green. These bands represent the USDA.  A bison and two pine trees stand in the mid-ground. Both are forest green and stem from the dark green bands of the fields. These two symbols represent the National Park Service and Forestry Service respectively. The aforementioned bands then turn into bright blue waves of water at the bottom of the circle. The outer circle is structured kind of like a coin, giving a nod to the Department of the Treasury logo.
hhhansen.bsky.social
This is how I feel when I start up a new programming language to learn. 🤣
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jacsciart.bsky.social
More progress on my Lookdown illustration for today's #SundayFishSketch 🐡
A work in progress illustration of a school of Lookdowns swimming in shallow water. The fish are swimming to the right side of the image, and the water is a turquoise color. The bottom is sandy, and the light shining through the waves refracts chaotically on the sand.
Reposted by H3
jacsciart.bsky.social
An illustration of some Cownose Rays

#SciArt
A bird's eye view illustration of five Cownose Rays swimming through shallow, blue-green water.
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jacsciart.bsky.social
I finally finished my Spotted Gar illustration for today's #SundayFishSketch 🐡
An illustration of a Spotted Gar. The fish is long and thin, with a long, thin nose. The back is a darker olive-brown, and fades to pale cream towards the belly. The fins have a slight orange-red hue to them, and the body of the fish is covered in dark, irregular spots.