Michael Twiss
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mtwiss.bsky.social
Michael Twiss
@mtwiss.bsky.social
Great Lakes limnologist; Prof Algoma Univ; past IJC Science Advisory Bd member; former IAGLR Pres. Watermark story: https://vimeo.com/180232420; Water-Sky image: @christibelcourt.com; inset is marine diesel in Great Lakes at dawn. Water & oil don’t mix.
Pinned
We (Algoma University, Lake Superior State University and several other institutions) are studying the impact of petroleum spills in the #GreatLakes with an emphasis on the #winter condition. See image ALT for more details. Thanks to NRCan for funding support. N
Reposted by Michael Twiss
ICYMI: Opening brief against Line 5 filed in the Michigan Supreme Court

www.wlns.com/top-stories/...
www.wlns.com
November 17, 2025 at 9:04 PM
Special section of Journal of Great Lakes Research on Connecting Waters in the #GreatLakes. Open Access: includes a brief historical review of past efforts to focus on these critical areas and Summary of the 15 manuscripts that compose the Section. 🧪
doi.org/10.1016/j.jg...
Redirecting
doi.org
November 16, 2025 at 1:20 PM
Australia’s unprecedented toxic algal bloom has a surprise culprit | Science | AAAS www.science.org/content/arti... 🧪
Australia’s unprecedented toxic algal bloom has a surprise culprit
A relatively unknown species is producing a notorious neurotoxin, devastating sea life
www.science.org
November 13, 2025 at 11:05 PM
Here’s my story of the Edmund Fitzgerald. I was living in northern Ontario, in grade 4, and had a handme down radio…

vimeo.com/180232420
Michael Twiss - Great Lakes Watermark
Michael Twiss, who has served on the IJC’s Great Lakes Science Advisory Board and its Research Coordination Committee since 2014. Twiss is a professor of limnology,…
vimeo.com
November 11, 2025 at 3:26 AM
Reposted by Michael Twiss
An excellent piece on the A2A (Adirondack to Algonquin) biological corridor and the need for wildlife passage structures over some major highways. 🦤🌎
New infrastructure could help wildlife traverse a corridor that spans from Ontario to the ADKs
As the Ontario Ministry of Transportation plans to expand Highway 401, the A2A Collaborative is proposing new wildlife over and underpasses to help animals migrate.
www.northcountrypublicradio.org
October 22, 2025 at 3:47 AM
Reposted by Michael Twiss
WOW! Our survey of scientists who stopped using Twitter and started using Bluesky is now the #1 most-shared on social media article in the history of the journal Integrative and Comparative Biology! Thanks for reading it, everyone! @sicbjournals.bsky.social

doi.org/10.1093/icb/... 🧪
Scientists no Longer Find Twitter Professionally Useful, and have Switched to Bluesky
Synopsis. Social media has become widely used by the scientific community for a variety of professional uses, including networking and public outreach. For
doi.org
October 15, 2025 at 7:29 PM
Reposted by Michael Twiss
“We need to celebrate World Lake Day by acknowledging the benefits we derive from lakes, and then by returning the favour by taking action to ensure that our lakes remain healthy”

John Smol, @sjcfishy.bsky.social & @sapnasharma.bsky.social reflect on #WorldLakeDay: bit.ly/45VwrGW
Opinion: Let’s both celebrate – and worry about – our Great Lakes on World Lake Day
Canada’s freshwater benefits us greatly - and we need to return the favour
www.theglobeandmail.com
August 27, 2025 at 7:09 PM
Reposted by Michael Twiss
You are invited to submit a session to the 2026 Joint Aquatic Conference of the @iaglr.bsky.social and @Society of Canadian Aquatic Sciences (SCAS-SCSA), and hosted by @experimentallakes.bsky.social !!!

Check out the call for sessions at: iaglr.org/iaglr-scas26... - Deadline: September 19.
August 12, 2025 at 10:27 PM
Reposted by Michael Twiss
I’m watching a live stream
August 7, 2025 at 2:26 PM
Reposted by Michael Twiss
At the American Theater in Canton NY.
Small acts of resistance are resistance, too.
July 13, 2025 at 2:34 PM
Reposted by Michael Twiss
Underneath the ice, this ecosystem was thriving.

eos.org/articles/thr...

Read more in our July issue, out now: bit.ly/Eos-Jul2025
Thriving Antarctic Ecosystem Revealed by a Departing Iceberg - Eos
A quick-calving iceberg gave scientists a rare glimpse into what hides beneath Antarctic ice.
eos.org
July 4, 2025 at 10:45 PM
Reposted by Michael Twiss
From friends, at a water festival in Lyon, France.
June 28, 2025 at 2:42 PM
Reposted by Michael Twiss
Beloit, WI revitalized its waterfront and chose this way to celebrate it: by bringing to life Georges Seurat's "A Sunday Afternoon on the Island of La Grande Jatte."
June 25, 2025 at 1:04 PM
Happy Summer #Solstice 2025 - today on the TransCanada Highway outside of Banff, Alberta. Wet snow today - tomorrow daylight period gets shorter…..🧪
June 21, 2025 at 8:40 PM
Setting up 24 x 1,400-L tanks contains St Marys River water, sediment and plants. Seen is high level light crude oil addition (time zero). Observations of biota (eDNA, phytoplankton, zooplankton, benthic inverts, and fish behavior) to follow. Funded by NRCan - MPRI project @algomau.bsky.social
June 18, 2025 at 6:18 PM
Reposted by Michael Twiss
If you need a breather from all this bullshit, here's a photo of Earth.

From Saturn.

We're that slightly brighter star at centre right.
June 6, 2025 at 1:44 AM
Reposted by Michael Twiss
Looking forward to tomorrow’s jump into Lake Ontario for Great Lakes Day celebration. The Great Lakes St Lawrence River watershed is an ecosystem of Biinaagami waters. We share with millions, from many nations, this life giving natural wonder. @swimdrinkfish ⁦‪@CanGeo
June 6, 2025 at 1:36 PM
Reposted by Michael Twiss
NOAA's National Mussel Watch Program - which has used invasive zebra + quagga mussels to track contaminants in the #GreatLakes since 1992 - finds that PFAS are ubiquitous in the lakes, with mussels in Lake Michigan having the highest average PFAS concentrations www.bridgemi.com/michigan-env...
Study of invasive mussels finds PFAS is nearly everywhere in the Great Lakes | Bridge Michigan
A recent report that PFAS contamination is widespread in Great Lakes mussels give a clearer picture of where the chemicals are concentrated.
www.bridgemi.com
June 6, 2025 at 4:27 PM
My first Science feed contribution. Really enjoyed the Sci-Comm session at #IAGLR25! 🧪
. @mtwiss.bsky.social kicks us back up in the misinformation /disinformation #scicomm session with approaching challenging conversations with polarized audiences using the non-violent communication approach #IAGLR25
June 4, 2025 at 12:41 PM
DM me if you are going to IAGLR and are looking to stretch your legs - and link elbows - all for a good cause!
At #IAGLR25, cheer on your favorite team as they face off in the 14th IAGLR Defy Cup Challenge. It's a great time and a great cause, as the game raises funds for the IAGLR Scholarship. Register today before standard pricing ends to be in the stands: https://bit.ly/3E3BuuO
May 9, 2025 at 5:41 PM
Reposted by Michael Twiss
“When we remove protections for wetlands and ephemeral streams, the devastating impacts are seen in larger bodies of water like the #GreatLakes which are the main economic driver for our region and again, the source of drinking water for 40 million people."

cleanwater.org/2025/05/05/c...
Clean Water Staff Speak Out at EPA Listening Session
Clean Water Action and Clean Water Fund made our voices loud and clear at the U.S. Environmental Protection Agency’s (EPA’s) latest listening session on the Clean Water Act. On May 1, 2025, EPA invite...
cleanwater.org
May 7, 2025 at 8:17 PM
Heading to #IAGLR25 and want to participate in this event (skate as player or referee - no manuscript review required)? Want to pit yourself as a coach against an undefeated Defy Cup champion coach (@mjmcncycke.bsky.social)?- then send chat to me in bsky. I’m the one wearing the stripped sweater…
At #IAGLR25, cheer on your favorite team as they face off in the 14th IAGLR Defy Cup Challenge. It's a great time and a great cause, as the game raises funds for the IAGLR Scholarship. Register today before standard pricing ends to be in the stands: bit.ly/3E3BuuO
April 29, 2025 at 1:19 AM
Reposted by Michael Twiss
What follows if we imagine rivers as having lives, deaths––& even rights?
I wrote this essay about water & hope; imagining rivers “otherwise”; nature’s rights; grammars of animacy; & how our fate flows with that of rivers—& always has.
It’s from Is A River Alive?
www.theguardian.com/books/2025/a...
Is this river alive? Robert Macfarlane on the lives, deaths and rights of our rivers
As pollution levels hit record highs and fresh water becomes ‘the new oil’, is it time to radically reimagine our relationship to the natural world?
www.theguardian.com
April 26, 2025 at 1:38 PM
Reposted by Michael Twiss
RAEON has relied on @globservingsystem.bsky.social since day one. GLOS powers data that drives safety, science & the Great Lakes economy. Cutting funding risks it all.
Information provided by GLOS supports the regional marine economy, improves forecasts, and supports decision-making and nearshore safety for countless stakeholders. Cutting or reducing funding would have wide-ranging impacts on Great Lakes communities’ economies and safety.
April 24, 2025 at 1:26 PM
Reposted by Michael Twiss
Lake Huron's Middle Island could help us learn about what life on Earth was like billions of years ago, before we had oxygen in our atmosphere.
#GreatLakes #Evolution
www.discovermagazine.com/the-sciences...
Lake Huron's Middle Island Sinkhole Could Help Us Understand Earth's Evolution
Learn more about the Middle Island Sinkhole, an under water sinkhole with no oxygen.
www.discovermagazine.com
April 18, 2025 at 8:33 PM