Katie O'Reilly
@drkatfish.bsky.social
Aquatic Invasive Species with Illinois-Indiana Sea Grant | #GreatLakes | Come for the #ecology & #scicomm, get reeled in by the fish puns
https://iiseagrant.org/about/our-team/katie-oreilly/
https://iiseagrant.org/about/our-team/katie-oreilly/
Pinned
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
Reposted by Katie O'Reilly
when we say we want more streets to be pedestrianized, this is what we mean
November 25, 2025 at 4:46 PM
when we say we want more streets to be pedestrianized, this is what we mean
Reposted by Katie O'Reilly
The only advent calendar I need.
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
November 25, 2025 at 12:55 PM
The only advent calendar I need.
Reposted by Katie O'Reilly
This kind of story pulls me temporarily out of retirement and away from bear hunting. chicago.suntimes.com/outdoors/202...
Leo Garza reels in record walleye in Chicago
The walleye weighed in at 14.3 pounds on a certified scale
chicago.suntimes.com
November 25, 2025 at 12:08 AM
This kind of story pulls me temporarily out of retirement and away from bear hunting. chicago.suntimes.com/outdoors/202...
Reposted by Katie O'Reilly
The holiday content I need
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
November 24, 2025 at 5:49 PM
The holiday content I need
Reposted by Katie O'Reilly
I am so excited, I missed this last year it is a bunch of fun. @drkatfish.bsky.social is awesome.
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
November 24, 2025 at 2:40 PM
I am so excited, I missed this last year it is a bunch of fun. @drkatfish.bsky.social is awesome.
Reposted by Katie O'Reilly
It's going to be a special #Fishmas season this year!
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
November 24, 2025 at 3:20 PM
It's going to be a special #Fishmas season this year!
Reposted by Katie O'Reilly
It’s the moooost wonderful timeeee of the yeeeaaarrrr! 🐟 🎄🐟🎅🏼🐟⛄️🐟
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
November 24, 2025 at 5:37 PM
It’s the moooost wonderful timeeee of the yeeeaaarrrr! 🐟 🎄🐟🎅🏼🐟⛄️🐟
Reposted by Katie O'Reilly
ITS THE MOST WONDERFUL TIME OF THE YEAR!
ITS THE HAP-HAPPIEST TIME OF THE YEEEEAAAARRR!
ITS THE HAP-HAPPIEST TIME OF THE YEEEEAAAARRR!
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
November 24, 2025 at 5:41 PM
ITS THE MOST WONDERFUL TIME OF THE YEAR!
ITS THE HAP-HAPPIEST TIME OF THE YEEEEAAAARRR!
ITS THE HAP-HAPPIEST TIME OF THE YEEEEAAAARRR!
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
November 24, 2025 at 2:20 PM
🎶From Atlantic to Pacific, gee the fish facts are terrific!🎶
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
#25DaysofFishmas is hitting the road! While there's no place like H.O.M.E.S. for the holidays, we'll be traveling beyond the #GreatLakes this year to learn about freshwater fishes from across the US. The road trip kicks off December 1!
Reposted by Katie O'Reilly
Lake whitefish are spawning this time of year, so commercial season is closed. The eggs will overwinter and then hatch early in the spring.
#GreatLakes
#GreatLakes
November 24, 2025 at 2:53 AM
Lake whitefish are spawning this time of year, so commercial season is closed. The eggs will overwinter and then hatch early in the spring.
#GreatLakes
#GreatLakes
Reposted by Katie O'Reilly
“I asked ChatGPT” “I asked Claude” I asked this horseshoe crab and he said your ass wouldn’t have lasted two seconds in the Triassic
November 23, 2025 at 9:50 PM
“I asked ChatGPT” “I asked Claude” I asked this horseshoe crab and he said your ass wouldn’t have lasted two seconds in the Triassic
Reposted by Katie O'Reilly
Some chibi fish rough sketches I forgot to post yesterday. Though now they’re just in time for #sundayfishsketch
#roughsketches #fishart #chibiart
#roughsketches #fishart #chibiart
November 23, 2025 at 4:29 PM
Some chibi fish rough sketches I forgot to post yesterday. Though now they’re just in time for #sundayfishsketch
#roughsketches #fishart #chibiart
#roughsketches #fishart #chibiart
Reposted by Katie O'Reilly
Some funky little guys for #SundayFishSketch I saw a video about razor fish this week and I love that they school together in this nose-down position
November 23, 2025 at 5:45 PM
Some funky little guys for #SundayFishSketch I saw a video about razor fish this week and I love that they school together in this nose-down position
Reposted by Katie O'Reilly
Here is a watercolor painting of a Bartail Parrotfish, Scarus caudofasciatus, for my Sunday Fish Sketch.
Reference photo(s) by Stephen Spangler, Scuba.Spanglers.com
#sciart #marinelife #coralreefs #oceanconservation
#parrotfish #spanglersscuba
#sundayfishsketch
Reference photo(s) by Stephen Spangler, Scuba.Spanglers.com
#sciart #marinelife #coralreefs #oceanconservation
#parrotfish #spanglersscuba
#sundayfishsketch
November 23, 2025 at 6:57 PM
Here is a watercolor painting of a Bartail Parrotfish, Scarus caudofasciatus, for my Sunday Fish Sketch.
Reference photo(s) by Stephen Spangler, Scuba.Spanglers.com
#sciart #marinelife #coralreefs #oceanconservation
#parrotfish #spanglersscuba
#sundayfishsketch
Reference photo(s) by Stephen Spangler, Scuba.Spanglers.com
#sciart #marinelife #coralreefs #oceanconservation
#parrotfish #spanglersscuba
#sundayfishsketch
Reposted by Katie O'Reilly
On a delightful walk today with my charming company we came across a gurgling spring-fed pond with some chonky koi, swimming idyllically. Cyprinus sp. 錦鯉 for #SundayFishSketch 🐡🦑🧪
November 23, 2025 at 3:13 PM
On a delightful walk today with my charming company we came across a gurgling spring-fed pond with some chonky koi, swimming idyllically. Cyprinus sp. 錦鯉 for #SundayFishSketch 🐡🦑🧪
Reposted by Katie O'Reilly
ARTISTS!
I need your help!
In collab. w/the Society for Integrative & Comparative Biology, I'm organizing a group of artists to come to our Jan. meeting! We're looking for artists to create based on what they learn at the conference. $1000 stipend.
Application is V short! forms.gle/ah1i8KwNJinZ...
I need your help!
In collab. w/the Society for Integrative & Comparative Biology, I'm organizing a group of artists to come to our Jan. meeting! We're looking for artists to create based on what they learn at the conference. $1000 stipend.
Application is V short! forms.gle/ah1i8KwNJinZ...
November 22, 2025 at 3:51 PM
ARTISTS!
I need your help!
In collab. w/the Society for Integrative & Comparative Biology, I'm organizing a group of artists to come to our Jan. meeting! We're looking for artists to create based on what they learn at the conference. $1000 stipend.
Application is V short! forms.gle/ah1i8KwNJinZ...
I need your help!
In collab. w/the Society for Integrative & Comparative Biology, I'm organizing a group of artists to come to our Jan. meeting! We're looking for artists to create based on what they learn at the conference. $1000 stipend.
Application is V short! forms.gle/ah1i8KwNJinZ...
Some of the #GreatLakes most damaging invasive species - like zebra mussels + round gobies - were introduced via ballast water. However, ballast water management systems on ships have been shown to reduce the abundance of living organisms in ballast water by more than 98% www.wpr.org/news/conflic...
Tensions mount over conflicting ballast water regulations on the Great Lakes
American shippers are at odds with the Canadian government over its regulations that require all Great Lakes vessels or “lakers” to install systems to treat their ballast water by 2030.
www.wpr.org
November 21, 2025 at 2:58 PM
Some of the #GreatLakes most damaging invasive species - like zebra mussels + round gobies - were introduced via ballast water. However, ballast water management systems on ships have been shown to reduce the abundance of living organisms in ballast water by more than 98% www.wpr.org/news/conflic...
Reposted by Katie O'Reilly
The Klamath River is flowing free again.
RES and local Indian Tribes are restoring habitat, renewing cultural ties, and leading the largest dam removal in history.
🎥 Watch the film + explore the series: contentwithpurpose.co.uk/afs/tomorrow...
RES and local Indian Tribes are restoring habitat, renewing cultural ties, and leading the largest dam removal in history.
🎥 Watch the film + explore the series: contentwithpurpose.co.uk/afs/tomorrow...
Restoring the Klamath River - Tomorrow's Catch
Witness the Klamath River’s transformation as dam removal restores salmon habitat, tribal lands, and cultural connections in this historic restoration.
contentwithpurpose.co.uk
November 20, 2025 at 3:00 PM
The Klamath River is flowing free again.
RES and local Indian Tribes are restoring habitat, renewing cultural ties, and leading the largest dam removal in history.
🎥 Watch the film + explore the series: contentwithpurpose.co.uk/afs/tomorrow...
RES and local Indian Tribes are restoring habitat, renewing cultural ties, and leading the largest dam removal in history.
🎥 Watch the film + explore the series: contentwithpurpose.co.uk/afs/tomorrow...
Reposted by Katie O'Reilly
I’m Detroit, Michigan for the 3rd Binational Great Lakes Aquatic Invasive Species Forum and needed to share pictures of this amazing carousel I spotted along the Detroit Riverwalk! 🐟
November 20, 2025 at 3:50 PM
I’m Detroit, Michigan for the 3rd Binational Great Lakes Aquatic Invasive Species Forum and needed to share pictures of this amazing carousel I spotted along the Detroit Riverwalk! 🐟
Not sure how fast your stream is flowing? Problematic gage gap.
Angry person yelling at chill person who is responding by being calm, which makes the angry person even more mad? Problematic rage gap.
Prisoners keep escaping because you put the bars too far apart? Problematic cage gap.
November 20, 2025 at 1:34 AM
Not sure how fast your stream is flowing? Problematic gage gap.
Reposted by Katie O'Reilly
Illinois has no state-level protections for these ecosystems beyond some localized county-level protections, mostly in the Chicago area.
trib.al/6hI1hDe
trib.al/6hI1hDe
Illinois lawmakers urged to ‘step up’ and ‘fight like hell’ as EPA moves to cut wetlands protections
New U.S. EPA rule would strip protections from 72% of the state’s remaining wetlands, which play a crucial role in mitigating flooding and filtering drinking water.
trib.al
November 19, 2025 at 7:33 PM
Illinois has no state-level protections for these ecosystems beyond some localized county-level protections, mostly in the Chicago area.
trib.al/6hI1hDe
trib.al/6hI1hDe
Beyond Chicago's charismatic exotic animals (shout-out to Chance the Snapper), the city's waterways have also become home to less conspicuous - but environmentally harmful - exotic species like weatherfish, goldfish, and red swamp crayfish.
A good reminder to never release pets to the wild!
A good reminder to never release pets to the wild!
The city has seen its share of exotic animals, crawling, slithering and swinging, unattended in Chicago streets and waterways. But what happens when there’s a peacock strutting down the alley?
A monkey on the loose: Odd animal sightings in Chicago
www.wbez.org
November 19, 2025 at 3:48 PM
Beyond Chicago's charismatic exotic animals (shout-out to Chance the Snapper), the city's waterways have also become home to less conspicuous - but environmentally harmful - exotic species like weatherfish, goldfish, and red swamp crayfish.
A good reminder to never release pets to the wild!
A good reminder to never release pets to the wild!
Reposted by Katie O'Reilly
Gordon Lightfoot's iconic song tells the story of the Edmund Fitzgerald, lost 50 years ago this month. As we sing along, take a moment to connect with some of the other stories that unite us around a shared Great Lakes heritage: buff.ly/5YqgUrb
November 10, 2025 at 3:31 PM
Gordon Lightfoot's iconic song tells the story of the Edmund Fitzgerald, lost 50 years ago this month. As we sing along, take a moment to connect with some of the other stories that unite us around a shared Great Lakes heritage: buff.ly/5YqgUrb
Reposted by Katie O'Reilly
NEW episode of MeatEater Podcast chatting gars & native fish conservation!
Grateful for the opportunity to chat stewardship of freshwater natural resources with Steve Rinella and the hunting & fishing crew! youtu.be/xLDSV5qbyzw?...
Grateful for the opportunity to chat stewardship of freshwater natural resources with Steve Rinella and the hunting & fishing crew! youtu.be/xLDSV5qbyzw?...
November 17, 2025 at 7:34 PM
NEW episode of MeatEater Podcast chatting gars & native fish conservation!
Grateful for the opportunity to chat stewardship of freshwater natural resources with Steve Rinella and the hunting & fishing crew! youtu.be/xLDSV5qbyzw?...
Grateful for the opportunity to chat stewardship of freshwater natural resources with Steve Rinella and the hunting & fishing crew! youtu.be/xLDSV5qbyzw?...
Reposted by Katie O'Reilly
A very quick #SundayFishSketch for a busy weekend, but my nephew mailed me a drawing of a sunfish this week so I wanted to do one to match
November 16, 2025 at 3:36 PM
A very quick #SundayFishSketch for a busy weekend, but my nephew mailed me a drawing of a sunfish this week so I wanted to do one to match