Titus Seilheimer's Avatar

Titus Seilheimer

@drfishsg

Aquatic ecology & Fisheries with Wisconsin Sea Grant. Science Communication. Helping improve the Great Lakes since 2001. #Freshwater, #Fish, #GreatLakes! He/Him. Manitowoc, WI go.wisc.edu/j0c989

2,921
Followers
2,003
Following
2,725
Posts
16.05.2023
Joined
Posts Following

Latest posts by Titus Seilheimer @drfishsg

Preview
The impacts of asynchronous hatching on morphology, growth, and development of larval burbot (Lota lota) Burbot (Lota lota)are native fish in Lake Superior that reproduce in winter. They produce small eggs and larvae that are ichthyoplanktonic, and thus a…

The impacts of asynchronous hatching on morphology, growth, and development of larval burbot (Lota lota)

#GreatLakes πŸ§ͺ

www.sciencedirect.com/science/arti...

Long hatching periods may be survival strategy adapted to generate variable offspring to deal w/ harsh & variable environmental conditions.

12.03.2026 00:31 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1

Still time to nominate your favorite fisheries professionals for AFS awards!

11.03.2026 13:47 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Have you ever wanted to tour the Northern Aquaculture Demonstration Facility? The NADF, located in Bayfield WI, is a place where aquaculture research meets fish farmers. Get the inside scoop with Emma Hauser, WI Sea Grant's aquaculture outreach and education specialist. https://youtu.be/e3-D_sqQemk

10.03.2026 20:15 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Ice covered stream downstream of culverts.

Ice covered stream downstream of culverts.

Open water stream downstream of culverts a week later.

Open water stream downstream of culverts a week later.

Difference in one week.

Steelhead are here and suckers will soon appear. 4.3 C water temp.

10.03.2026 15:41 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

What's your sign?

09.03.2026 20:00 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1

Up next, early 90s Dinosaurs sitcom?

09.03.2026 12:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Ink sketch of a fish

Ink sketch of a fish

A young of the year Lake Sturgeon, all covered in spiny scutes. #SundayFishSketch

09.03.2026 01:45 πŸ‘ 44 πŸ” 8 πŸ’¬ 1 πŸ“Œ 0
A teacher stands on a research boat with a view of the Milwaukee shoreline

A teacher stands on a research boat with a view of the Milwaukee shoreline

Educators, apply for this FREE opportunity to learn about the #GreatLakes and coastal engineering this summer in Milwaukee! Work with engineers, scientists, and educators to explore coastal engineering education and get ideas for lesson plans to teach your students.

https://go.wisc.edu/6qoud7

06.03.2026 17:01 πŸ‘ 3 πŸ” 3 πŸ’¬ 0 πŸ“Œ 1
Green t shirt with a moose silhouette in white and the words "sudden moose" in all caps.

Green t shirt with a moose silhouette in white and the words "sudden moose" in all caps.

06.03.2026 15:46 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

"Sudden moose!"

06.03.2026 15:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
a shirtless man is making a devil horns sign and says el niΓ±o is spanish for ... ALT: a shirtless man is making a devil horns sign and says el niΓ±o is spanish for ...

In my mind Chris Farley will always be El Nino!

06.03.2026 13:35 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Video thumbnail

Big dawg El NiΓ±o coming this summer and fall! This is a bit science-y… but easy. So follow along. You are looking at a vertical cross section of the tropical Pacific Ocean at the Equator with depth downward deep into the ocean. Left side is west near Asia. Right side is east near South America 1/

06.03.2026 13:23 πŸ‘ 171 πŸ” 82 πŸ’¬ 12 πŸ“Œ 12
Preview
For the Fun of the Surf In northwest Indiana, there’s a 20-mile stretch of Lake Michigan that’s dominated by industry. It’s some of the dirtiest water in the lake, but it's also home to some of the biggest waves anywhere on ...

Southern Lake Michigan can have some of the best surfing conditions of the #GreatLakes, but the highly-industrial south shore also has some of the most polluted waters. The Chicago Surfrider chapter is trying to keep companies accountable www.interlochenpublicradio.org/podcast/poin...

05.03.2026 16:55 πŸ‘ 17 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

Keep reaching for the stars!

04.03.2026 17:53 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Show them cool science and then make them spend an hour doing a travel reimbursement in Workday!

04.03.2026 17:45 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Man with head thrown back after getting hit in the open mouth by a catfish.

Man with head thrown back after getting hit in the open mouth by a catfish.

Then the catfish hit me in the face!

#GreatLakes

Right in the mouth!

04.03.2026 14:53 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Man in waders holds a fish. Both have their mouths open.

Man in waders holds a fish. Both have their mouths open.

That time the catfish and I had the same look on our face.

#GreatLakes

04.03.2026 14:51 πŸ‘ 28 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

I will pick the bird 100% of the time over the A.I.! And coming from Team Fish, that's a big deal!

03.03.2026 19:47 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Now let's see some posts!

03.03.2026 17:57 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Did AI design that book cover?

03.03.2026 16:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Open flowing water in a creek with ice on the sides of the channel and upstream.

Open flowing water in a creek with ice on the sides of the channel and upstream.

Still ice on the creeks but water is flowing and some open water areas.

03.03.2026 16:56 πŸ‘ 10 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Canadian Science Publishing

Decreased water transparency of nearshore Laurentian Great Lakes habitats is driven by increased dissolved organic carbon

#GreatLakes πŸ§ͺ

cdnsciencepub.com/doi/full/10....

02.03.2026 14:51 πŸ‘ 9 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Canadian Science Publishing

Drivers of walleye, brook trout, and lake trout abundance in QuΓ©bec lakes

πŸ§ͺ

cdnsciencepub.com/doi/full/10....

Brook trout populations were larger in allopatric lakes
Lake trout abundances were smaller in association with large piscivores.
Climate was more important for walleye.

02.03.2026 14:45 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Canadian Science Publishing

Historical, abiotic, and biotic drivers influence contemporary lacustrine fish community composition in the glacial Lake Agassiz basin

πŸ§ͺ on fish dispersal to Ontario lakes during most recent glacial retreat.

cdnsciencepub.com/doi/full/10....

02.03.2026 14:39 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Ink sketch of a large, torpedo shaped fish with a duck billed shaped mouth swimming under the ice with a fishing line dangling down.

Ink sketch of a large, torpedo shaped fish with a duck billed shaped mouth swimming under the ice with a fishing line dangling down.

Lurking below the ice, it is the Northern Pike! #SundayFishSketch

02.03.2026 02:31 πŸ‘ 30 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

Yes, say no. No for yourself!

28.02.2026 02:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I feel like there is this expectation now that you need to know what you want to do for a major and life as an early teen. But that why you go to school, to try some things and learn new things. Find out what you want to do then!

26.02.2026 14:42 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

And fish/seafood not included!

26.02.2026 13:27 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
Obligate species of Neocottus (Cottoidei) associated with unique habitats in Lake Baikal: Integral analysis of morphological, ecological, and genetic features We conducted a study of the morphological, ecological, and genetic characteristics of Neocottus thermalis. This species is obligate to the hydrotherma…

Obligate species of Neocottus (Cottoidei) associated with unique habitats in Lake Baikal: Integral analysis of morphological, ecological, and genetic features

πŸ§ͺ

www.sciencedirect.com/science/arti...

26.02.2026 13:00 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Jaws is my favorite shark movie and favorite movie, in general.

26.02.2026 00:20 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0