Jason Barnucz
banner
jasonbarnucz.bsky.social
Jason Barnucz
@jasonbarnucz.bsky.social
Father | Husband | Aquatic Biologist | Rare Fish Finder | Freshwater Fish Friend | Pure Fishing Ambassador | he/him | views are my own. 🐟 🎣 🇨🇦 🔬
Pinned
Thought I’d make my first post here. Been an X user for almost two decades. Now I’m here. If you like fish, angling, outdoors, fishy nerdy and good fishy puns feel free to follow. 👋🎣🐟🔬 #newguy #fishing #fishguy #fishscience
Reposted by Jason Barnucz
Understanding how policymakers define & select evidence in environmental decisions is crucially important. Based on interviews with 84 Canadian professionals working at science-policy interfaces, Nyboer et al. set out a new definition of “good evidence” @sjcfishy.bsky.socialdoi.org/10.1016/j.en...
August 29, 2025 at 12:33 PM
Reposted by Jason Barnucz
Have you ever wondered how the freshwater pearl mussel (M. margaritifera) lives in our rivers and feeds? I took some photos at our mussel breeding station today. The mussel is buried in the sediment by about a third or more and holds on with its muscular foot. It has two filter openings... 1/2
August 22, 2025 at 6:33 PM
Reposted by Jason Barnucz
Freshwater mussels mostly use fish as a host to move upstream. The salamander mussel is unique in latching on to aquatic salamanders! Its larvae encyst in the gills of mudpuppies, possibly staying with their hosts over the winter! (204)
August 24, 2025 at 3:22 PM
Reposted by Jason Barnucz
Some of the snow totals recorded from the epic lake effect snow event to end off November & begin December. * denotes unofficial totals. It gets very difficult to measure amounts when you get this much! The squalls have left #Muskoka region & have been impacting #London & vicinity. #onstorm
December 2, 2024 at 2:21 PM
Reposted by Jason Barnucz
Come for the #WinterForecast, stay for the #Movember donation: ca.movember.com/mospace/766332
November 27, 2024 at 4:25 PM
Reposted by Jason Barnucz
🌿 Our ecosystems are changing - and so must our strategies. At the Centre for Ecosystem Management, we bring together diverse voices, skills, and science-driven solutions to address pressing environmental challenges in the Great Lakes region and beyond. Intrigued? Learn more @ ecosystemscience.ca 🌍
Centre for Ecosystem Management
ecosystemscience.ca
November 19, 2024 at 4:09 PM
Reposted by Jason Barnucz
“Don’t worry friend, #GarWeek will be here soon”

~Me to this Alligator Gar, probably.
November 26, 2024 at 1:19 PM
Reposted by Jason Barnucz
Ever wonder what your tagged fish are up to between receiver fixes? See them in real-time! Who are they hangin' with? What are they snackin' on? 3D activity? See the big picture using integrated #sonar and acoustic biotelemetry methods. For more information www.milnetechnologies.ca/sonartags.htm.
November 26, 2024 at 1:18 PM
Reposted by Jason Barnucz
Nice to see you all again! Happy to replace my tweets with skeets?..bleets? idk...🤷‍♂️
I’m Scott Milne and I bleet about #hydroacoustics, sonar imaging, acoustic biotelemetry, and fish habitat mapping. I hope you enjoy this #ARIS multibeam echogram of a baitfish school being attacked by Rainbow Trout.
November 13, 2024 at 4:58 PM
Reposted by Jason Barnucz
OTD 1859 #CharlesDarwin published Origin of Species. It's worth reflecting that he recognized the disruptive power of species invasions at a time when very few other scientists did. In Origin, he proposed hypotheses that today's ecologists are still exploring... 1/n🧵 #bioinvasions #invasivespecies
November 24, 2024 at 6:34 PM
Reposted by Jason Barnucz
Darwin remarked on the attachment of freshwater bivalves to the feet/feathers of waterfowl as a potential dispersal mechanism. In particular, reports of sphaeriid clams attached to the toes of salamanders are now quite common.

www.researchgate.net/publication/...
November 24, 2024 at 7:01 PM
Reposted by Jason Barnucz
Sad news for a Friday. Unfortunately, Unlike some terrestrial animals, I doubt we get grainy pictures of the Scioto Madtom or San Marcos Gambusia to keep the hope alive.
www.fws.gov/press-releas...
21 Species Delisted from the Endangered Species Act due to Extinction | U.S. Fish & Wildlife Service
FALLS CHURCH, Va. —  The U.S. Fish and Wildlife Service is delisting 21 species from the Endangered Species Act due to extinction. Based on rigorous reviews of the best available science for each o...
www.fws.gov
October 20, 2023 at 3:15 PM
Reposted by Jason Barnucz
#GarWeek arrives December 16!!!
@garlab.bsky.social
November 23, 2024 at 4:21 PM
Reposted by Jason Barnucz
The Ricciardi Lab account on Bluesky is up and running. The migration from X/Twitter is completed.
November 23, 2024 at 8:39 PM
Reposted by Jason Barnucz
it’s #sturgeonsaturday!! 🧪🌎👩🏻‍🔬🐠

did you know that sturgeon don’t have scales? Instead they are covered in rows of bony plates called scutes! Scutes are as beautiful as they are protective & can be quite sharp in some life stages & species

Check out the rows of scutes that look like white diamonds 👇🏼
November 23, 2024 at 8:10 PM
Reposted by Jason Barnucz
Check out these freshwater musselheads 🦪, snaily folk 🐚🐌, and groups! Let me know if you would like to be added.
go.bsky.app/NjUGvWf
November 22, 2024 at 11:54 AM
Reposted by Jason Barnucz
Watched Gladiator II, so I’m giving y’all this one:
November 22, 2024 at 4:26 AM
Reposted by Jason Barnucz
After last night's downpour across the #GTA, here's where the bulk of the rain is expected today & tomorrow. With the evening commute now dark, throw in some rain & it always gets trickier. Like in #Ottawa this evening. Hope you "love a rainy night" in #Montreal!
November 21, 2024 at 1:38 PM
Me in my echo chamber.
November 21, 2024 at 12:17 PM
Reposted by Jason Barnucz
In 2012, fertile grass carp were identified near the mouth of the Sandusky River on Lake Erie; in 2015, grass carp eggs were found in the river, indicating that some breeding populations had established themselves in parts of the Great Lakes.
thenarwhal.ca/ontario-gras...
Fighting to keep grass carp out of the Great Lakes | The Narwhal
Canada and the U.S. are working to stop a massive invasive fish — grass carp — from invading the Great Lakes
thenarwhal.ca
November 21, 2024 at 12:59 AM
Reposted by Jason Barnucz
New Paper: This program, run by Dr. Karen Murchie, who is Director of Freshwater Research at Shedd Aquarium, continues to be a model for volunteer citizen scientists. link.springer.com/article/10.1...
For the love of suckers: scientific benefits of engaging volunteers to monitor migrations and advocate for native non-game fishes - Environmental Biology of Fishes
Suckers (Catostomidae) are the most abundant migratory fishes in the Laurentian Great Lakes region, but they are understudied and underappreciated given their important roles in ecosystems. To overcom...
link.springer.com
November 20, 2024 at 1:59 PM
Reposted by Jason Barnucz
Moments ago, Nova Scotia just cut down this tree to send to #Boston as a thank you for their help following the #Halifax explosion #ShareYourWeather @themurphologist.bsky.social @weathernetwork.bsky.social
November 20, 2024 at 3:27 PM
Reposted by Jason Barnucz
Here’s a story I’ve been working on for a couple years, about the most important conservation issue you’ve never heard of.
www.biographic.com/the-rough-fi...
The Rough Fish Revolution - bioGraphic
Fisheries scientists are only now coming to understand the important roles native “rough fish” play in freshwater ecosystems across North America—even as these long-maligned species are increasingly a...
www.biographic.com
November 20, 2024 at 2:47 PM