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Jesse McNichol

@jcmcnch.bsky.social
221 followers 277 following 14 posts

Asst Prof in Biology dept @ StFX, NS, Canada. Microbial ecology, oceanography, bioinformatics. I enjoy gardening, fermenting things, cooking, and spending time outdoors. Cover photo credit: P. McNichol.

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Reposted by Jesse McNichol
Theo Moudakis @theomoudakis.bsky.social · 09/09/2026
Please enjoy my cartoon in today's Toronto Star
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Kate Laskowski @katelaskowski.bsky.social · 10/09/2026
Adding this immediately into the opening lecture for my large undergrad class....
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Jesse McNichol @jcmcnch.bsky.social · 27/08/2026
thebeaverton.com/2026/08/poly...
thebeaverton.com
Polyamorous vegan baristas and conservative uncles unite in memory of Dolly Parton
DOLLYWOOD - Following the passing of beloved country music icon and humanitarian Dolly Parton, millions of tattooed urban progressive cyclists have joined in profound mourning alongside open carry unc...
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Thomas Piketty @thomaspiketty.bsky.social · 04/06/2026
We envision a new institution, the Global Justice Fund to finance this sustainable convergence path. The fund would raise revenue via global wealth and income taxes to be used for climate investments, expansion of health and education, and building up a World Sovereign Fund.
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The Beaverton @thebeaverton.com · 07/07/2026
Trump declares 100% tariff on waffles
thebeaverton.com
Trump declares 100% tariff on waffles
WASHINGTON D.C. - With Belgium defeating the United States team 4-1 to knock them out of the World Cup, U.S. President Trump has declared a 100% tariff on all waffle imports.
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Jesse McNichol @jcmcnch.bsky.social · 23/06/2026
So happy to share that Dr. Lexi Jones-Kellett's paper is finally out in PNAS! This was a fun collaboration between modeller/physical oceanography types (Lexi, Mick) and "gene jockeys" (me, Jed and Yubin). A testament to the power of interdisciplinary collaboration! www.pnas.org/doi/abs/10.1...
pnas.org
The dynamic mesoscale sink and source niches for eukaryotic phytoplankton in a subtropical gyre | PNAS
By tracking the water mass histories of genetic samples, we investigated the biophysical dynamics shaping eukaryotic phytoplankton populations in a...
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Dr Vanessa @hpsvanessa.bsky.social · 19/06/2026
If you can't write a grant proposal without slopAI you shouldn't get a grant. If you can't assess a grant proposal without slopAI you shouldn't be in academia at all.
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Hypervisible @hypervisible.blacksky.app · 19/06/2026
But I was told it was inevitable.
reuters.com
Norway imposes near ban on AI in elementary school
Norway is imposing a near ban on the use of generative AI tools by elementary school pupils while also restricting their ​use in the education of older children to prevent a ‌negative impact on learni...
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Noah Fierer @noahfierer.bsky.social · 19/06/2026
New preprint up: the power of protein language models - using a single gene (adenylate kinase) to predict the temperature optima of bacteria and bacterial communities from genomes or metagenomes www.biorxiv.org/content/10.6...
biorxiv.org
Predicting optimal growth temperatures of bacteria using learned structural information from a single protein
Temperature is a fundamental determinant of bacterial physiology and ecology. Optimal growth temperature (OGT) is highly variable across species, contributing to differences in where and when species ...
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Michael E. Mann @michaelemann.bsky.social · 19/06/2026
‘Termination shock’: trust our expert warnings on geoengineering’s planetary risks | New op-ed in @theguardian.com by Ray Pierrehumbert (@climatebook.bsky.social), Julia Slingo, @valmasdel.bsky.social & yours truly: www.theguardian.com/commentisfre...
theguardian.com
‘Termination shock’: trust our expert warnings on geoengineering’s planetary risks | Raymond Pierrehumbert, Julia Slingo, Michael Mann and Valerie Masson-Delmotte
Do we really want to play dice with our planet?
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The Beaverton @thebeaverton.com · 05/06/2026
FIFA forbids Canadian fans from bringing water inside own bodies into World Cup matches
thebeaverton.com
FIFA forbids Canadian fans from bringing water inside own bodies into World Cup matches
TORONTO - A last minute rule change by FIFA means World Cup fans will no longer be able to bring the moisture inside their own bodies into host stadiums for the tournament.
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Green Party of Canada | Parti Vert du Canada @canadiangreens.bsky.social · 12/03/2026
Watch: “Certainly in the last two weeks, things have gotten worse.” — Elizabeth May, Leader of the Green Party of Canada, on PM Carney’s first year in office and the road ahead.
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Schmidt Ocean Institute @schmidtocean.bsky.social · 10/03/2026
Wow. Foraminifera! ROV pilots paused and carefully zoomed in to collect footage of these single-celled microorganisms, or protists, at 843 m during the #OBVI #LivingBioreactors expedition w/ @schmidtsciences.bsky.social offshore of Argentina. Read the full caption: youtube.com/shorts/Yv_ud...
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Nova Scotia NDP @novascotiandp.bsky.social · 13/01/2026
🚨BREAKING🚨 Rents are falling across Canada — but not in Nova Scotia. While the Houston government refuses to create real rent control and build homes people can actually afford, renters are paying the price.
A graphic comparing rent trends shows average rent in Nova Scotia up 1.8% and average rent across Canada down 2.3%. Text at the top reads “Breaking,” with arrows indicating the increase and decrease.
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Gabriel Birzu @gbirzu.bsky.social · 31/12/2025
Happy that our work on the evolution of Yellowstone cyanobacteria is now published in @elife.bsky.social: doi.org/10.7554/eLif...! Did a lot of work in revision—many thanks to the anonymous reviewers for great suggestions! Also see the eLife digest for a summary: elifesciences.org/digests/9084...
doi.org
Hybridization breaks species barriers in long-term coevolution of a cyanobacterial population
Analysis of hundreds of single-cell genomes from Yellowstone National Park shows bacterial species are less cohesive than previously thought.
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Historica Canada @historicacanada.bsky.social · 06/12/2025
Today is the National Day of Remembrance and Action on Violence against Women. On this day, we honour those killed and injured during the École Polytechnique tragedy, and all women who experience violence. It is also a day to commit to ending gender-based violence.
buff.ly
École Polytechnique Tragedy (Montreal Massacre)
On 6 December 1989, a man entered a mechanical engineering classroom at Montreal’s École Polytechnique armed with a semi-automatic weapon. After separating t...
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Cult MTL @cultmtl.com · 06/12/2025
“Every year, when I see 14 beams of light projected into the sky above Mount Royal, I have to catch my breath. “36 years ago, 14 young women were murdered in one of the most violent examples of misogynistic terrorism Canada has ever known.” An editorial by @mtltoula.bsky.social. #December6
cultmtl.com
Gender-based violence is an everyday reality, and it starts with minimizing misogyny
As we highlight 16 Days of Activism Against Gender-Based Violence and the upcoming anniversary of the Montreal massacre, can we take a moment to reflect on all the different forms this violence takes?
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Petra Pjevac @ppjevac.bsky.social · 28/11/2025
This nice summary by @michiwagner4.bsky.social makes it easy to fit my post in a few characters. Amplicon sequencing is still an affordable and quick way to get good insights into who lives in your samples. Our new primers make sure your vision is 20/20. Try em, and contact me if you have questions!
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Michael E. Mann @michaelemann.bsky.social · 31/10/2025
Let me excerpt the concluding paragraph:
excerpt from linked commentary
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Reese Richardson @reeserichardson.bsky.social · 04/08/2025
Today, our article "The entities enabling scientific fraud at scale are large, resilient, and growing rapidly" is finally published in PNAS. I hope that it proves to be a wake-up-call for the whole scientific community. reeserichardson.blog/2025/08/04/a...
reeserichardson.blog
A do-or-die moment for the scientific enterprise
Reflecting on our paper “The entities enabling scientific fraud at scale are large, resilient, and growing rapidly”
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Jason Nickerson @jwnickerson.bsky.social · 29/10/2025
Horrific details emerging from El Fasher, Sudan: pools of blood so large they’re visible by satellite, people being killed systematically. Last week, MSF teams assessed 165 children under 5 fleeing the area and found 75% were acutely malnourished. An accelerating genocide before our eyes.
theglobeandmail.com
Signs of latest massacres in Darfur are visible in satellite imagery
Analysis concludes paramilitary soldiers are conducting mass killings in house-to-house operations
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StFXAUT @stfxaut.bsky.social · 20/10/2025
#MakeItFair #FairnessForCAS
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Michael E. Mann @michaelemann.bsky.social · 06/10/2025
“The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.” ― George Orwell, 1984
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Hiro Imachi @hiro-imachi.bsky.social · 17/09/2025
Wow, our AEM paper on a new methane-oxidizing bacterium just got a Commentary! 🎉 Congrats Kambara-san—so happy to see the work getting recognized! journals.asm.org/doi/10.1128/...
journals.asm.org
Expansion of aerobic methanotrophy to the phylum of Actinomycetota and its environmental implications | Applied and Environmental Microbiology
The climate crisis is one of the most imminent threats to humanity and all life on our planet. Methane is not only the second most potent greenhouse gas (GHG) and is responsible for approximately 31% of GHG-induced global warming since the start of the industrial revolution (1) but is also the most rapid increasing GHG in the atmosphere (2). The latter is likely caused by increased microbiological production of methane from, e.g., wetlands (2). This fact stresses the importance of methanotrophic microbes that can degrade methane with and without oxygen (3, 4) and thereby fulfill a crucial role in our global climate.
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Ramunas Stepanauskas @rstepanauskas.bsky.social · 07/09/2025
I’m excited to share our effort to obtain one of the first estimates of the net rate, in physical time, of lateral gene transfer (LGT) – nature’s own genetic engineering - across a complex, global microbiome: doi.org/10.1093/isme...
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Julia M. Wright @juliamwright.bsky.social · 01/09/2025
Not just classes are cancelled. DFA members have been locked out by the admin since August 20th: we can't sign students in from waitlists, can't advise them, can't share syllabi, can't help them with scholarship applications, etc. etc. #KeepDalStrong www.cbc.ca/news/canada/...
cbc.ca
'I just want to learn': Students in limbo as many Dalhousie classes cancelled amid strike | CBC News
Classes at Dalhousie University are supposed to start on Tuesday, but most have been cancelled due to a strike.
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 30/08/2025
Wow. Check this out. Politicians actually trying to solve problems can achieve a lot! www.washingtonpost.com/climate-solu...
washingtonpost.com
Paris said au revoir to cars. Air pollution maps reveal a dramatic change.
Air pollution fell substantially as the city restricted car traffic and made way for parks and bike lanes.
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Tricycle: The Buddhist Review @tricyclemag.bsky.social · 28/08/2025
“Suffering is not a death sentence; it can be confronted, it can be overcome. And we can be creative in how we address the human condition.” —Ofosu Jones-Quartey
tricycle.org
Hip-Hop as a Contemplative Practice
Jessica Angima talks with Buddhist teacher and rapper Born I about Lyrical Dharma, the limits of language, and how we all contain the seeds of our ancestors.
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Jason Haslam @jasonhaslam.ca · 26/08/2025
I am increasingly frustrated, even angry, about the hypocrisy—tempted to say disinformation—from @dalhousie.bsky.social’s administration. How can you say “the university’s priority is working with the DFA to reach a resolution” when they have not even tried to return to the table? #KeepDalStrong
ctvnews.ca
‘Challenges and uncertainty:’ Dalhousie University faculty lockout leaves students worried
The lockout of Dalhousie University faculty is inching closer to the start of the school year, and it's fuelling concerns among students.
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Dalhousie Faculty Association @dalfaculty.bsky.social · 27/08/2025
Chris Algar, Assoc Prof, Oceanography @dalhousieu.bsky.social Lessons in solidarity from the picket lines. This isn’t just a fight to #KeepDalStrong; it’s a fight against employer greed. @ansut.bsky.social @caut.bsky.social
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Cameron Thrash @jcamthrash.bsky.social · 12/08/2025
Sequestration by the biological carbon pump: Do we really know what we are talking about? aslopubs.onlinelibrary.wiley.com/doi/10.1002/... #jcampubs 🌊
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Cameron Thrash @jcamthrash.bsky.social · 16/07/2025
Our latest, and the second paper led by Jordan Coelho this year. Want to remove bacteria from POM for single-cell microbiology/culturing/'omics applications? We've got some data: Detergent-based separation of microbes from marine particles www.biorxiv.org/content/10.1... #jcampubs 🌊
biorxiv.org
Detergent-based separation of microbes from marine particles
Marine particles, typically composed of organic detritus and cellular debris, harbor microbial communities that are distinct from the planktonic, or free-living, communities in the pelagic ocean. Howe...
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Ben J Woodcroft @benjwoodcroft.bsky.social · 16/07/2025
Out in @natbiotech.nature.com: Metagenome taxonomy profilers usually ignore unknown species. SingleM is an accurate profiler which doesn't, even detecting phyla with no MAGs. Profiles of 700,000 metagenomes at sandpiper.qut.edu.au. A 🧵
Logo for the Sandpiper website
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Jed Fuhrman @jedfuhrman.bsky.social · 02/07/2025
Please Re-Post. Our global GRUMP microbial ocean database is out in Scientific Data! Unfractionated, single universal PCR, with Archaea, Bacteria, and Eukaryotes all on the same scale with the same denominator. Pole to pole, depths to 6000m. Lots of metadata. www.nature.com/articles/s41...
nature.com
Characterizing organisms from three domains of life with universal primers from throughout the global ocean - Scientific Data
Scientific Data - Characterizing organisms from three domains of life with universal primers from throughout the global ocean
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Jesse McNichol @jcmcnch.bsky.social · 02/07/2025
So excited to announce the GRUMP paper is published! This global dataset provides relative abundances for plankton spanning Archaea to Zooplankton from unfractionated (>0.2µm) water samples using 3-domain universal primers that amplify 16S and 18S in one PCR reaction. www.nature.com/articles/s41...
nature.com
Characterizing organisms from three domains of life with universal primers from throughout the global ocean - Scientific Data
Scientific Data - Characterizing organisms from three domains of life with universal primers from throughout the global ocean
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Science Magazine @science.org · 24/06/2025
"Institutions must support transgender and gender nonconforming and other marginalized scientists by securing their safety and privacy; their access to legal aid and health care; and their opportunities in education, employment, and society," argues a new #LetterToScience. scim.ag/4kQCMtr
scim.ag
Protect transgender scientists
Transgender and gender nonconforming (TGnC) people are a primary target of the Trump administration. Multiple executive orders seek to erase TGnC protections; mandate denial of gender identity; and ba...
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Simons Foundation @simonsfoundation.org · 02/06/2025
A healthy diet outperforms fecal transplants in restoring and protecting the gut microbiome, according to new research from the Simons Foundation’s Joy Bergelson and collaborators: www.simonsfoundation.org/2025/05/13/t... #science
quote that reads "This study is a great example of a clinically relevant finding that stems from very fundamental, basic science"
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joe vallino ∫🦠dxdt ≻∫🔥dxdt @mepjoe.bsky.social · 05/06/2025
NSF: "Biology, engineering, and education will all be slashed by over 70 percent..." "The fleet of research ships [UNOLS] will essentially become someone else's problem" Contact your representatives, even in blue states, as these cuts can still be stopped! arstechnica.com/science/2025...
arstechnica.com
US science is being wrecked, and its leadership is fighting the last war
Facing an extreme budget, the National Academies hosted an event that ignored it.
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Elizabeth May @elizabethemay.bsky.social · 05/06/2025
Very grateful to #MarcGarneau for his kindness and support when we fought to protect environmental laws attacked by Harper administration. We have lost a truly great Canadian.. and far too soon. #RIP
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Arianna Krinos @akrinos.bsky.social · 02/06/2025
I am honored to have been named a 2025 Howes Scholar by the Computational Science Graduate Fellowship committee! www.krellinst.org/csgf/about-d...
krellinst.org
Kellison and Krinos Named 2025 Frederick A. Howes Scholars | DOE CSGF
The two former computational science fellows were recognized for their science and their impact as mentors, teachers and volunteers.
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Jesse McNichol @jcmcnch.bsky.social · 26/05/2025
So happy to see this paper finally out! A fun project with collaborators Emily Zakem, @jlw-ecoevo.bsky.social and Yubin Raut!
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JL Weissman @jlw-ecoevo.bsky.social · 07/05/2025
Our newest on using genomic and phylogenetic information to predict microbial maximum growth rates www.nature.com/articles/s41... with @liangxu.bsky.social
nature.com
Improved maximum growth rate prediction from microbial genomes by integrating phylogenetic information - Nature Communications
Microbial maximum growth rates vary widely across species, and their measurement is challenging, especially for uncultivated organisms. Here, Xu, Zakem & Weissman present Phydon, a framework for g...
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Taylor priest @taylorpriest.bsky.social · 26/05/2025
Very cool study - motility in marine bacteria represents a risk-reward trade off under carbon starvation: some keep swimming at the expense of biomass while others stop swimming #MicroEco - www.nature.com/articles/s41...
nature.com
Risk–reward trade-off during carbon starvation generates dichotomy in motility endurance among marine bacteria - Nature Microbiology
Marine bacteria opt for divergent foraging strategies when faced with carbon starvation—either cease motility entirely, or convert biomass to energy to retain motility.
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Steven Robbins @stevenjrobbins.bsky.social · 21/05/2025
Very excited to present the Great Barrier Reef Microbial Genomes Database (GBR-MGD), a comprehensive DB of 1000s of high-quality prokaryote, virus, plasmid, and chromosome-level eukaryote MAGs using Nanopore long reads. Subthreads incoming. Please share widely. 🙂 www.biorxiv.org/content/10.1...
biorxiv.org
The planktonic microbiome of the Great Barrier Reef
Large genome databases have markedly improved our understanding of marine microorganisms. Although these resources have focused on prokaryotes, genomes from many dominant marine lineages, such as Pela...
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Mike Jetten @msmjetten.bsky.social · 19/05/2025
Microenvironments on individual sand grains enhance #nitrogen loss in coastal sediments #denitrification #oxygen www.nature.com/articles/s41...
nature.com
Microenvironments on individual sand grains enhance nitrogen loss in coastal sediments - Scientific Reports
Scientific Reports - Microenvironments on individual sand grains enhance nitrogen loss in coastal sediments
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Carmen 📚 Latinx Book Influencer 📚 @tomesandtextiles.bsky.social · 29/03/2025
When you look at the list of institutions they want to defund: libraries, museums, the Smithsonian, public schools, PBS, NPR, archives, you can clearly see that the real threat to an authoritarian regime is an informed and educated public
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Cameron Thrash @jcamthrash.bsky.social · 28/03/2025
Fabulous: An open letter to graduate students and other procrastinators: it’s time to write www.nature.com/articles/s41... #jcampubs
nature.com
An open letter to graduate students and other procrastinators: it’s time to write - Nature Biotechnology
Nature Biotechnology - An open letter to graduate students and other procrastinators: it’s time to write
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Jesse McNichol @jcmcnch.bsky.social · 06/03/2025
A wildlife photographer in Canada captured a symbolic confrontation between a goose and an eagle... defiance against bullying of all sorts is critical even when (perhaps especially when) they display their big sharp claws to try and intimidate you.
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