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Sapna Sharma

@sapnasharma.bsky.social
4.6K followers 373 following 13 posts

Professor in the Department of Biology at York University researching the impacts of climate change on lakes. Inaugural Academic Director of the United Nations Institute for Training and Research (UNITAR) Global Water Academy.

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Reposted by Sapna Sharma
PLOS Climate @plosclimate.org · 14/08/2026
In a new Opinion piece just published in PLOS Climate, @joshculpepper.bsky.social, @sapnasharma.bsky.social and colleagues highlight the opportunity to use the upcoming ‘super” El Niño to investigate the effects of climate variability on lakes. journals.plos.org/climate/arti...
journals.plos.org
Using a “Super” El Niño to understand how lakes respond to climate extremes
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Reposted by Sapna Sharma
Michael Meyer @mishafredmeyer.bsky.social · 23/06/2026
Registration is open for #HackingLimno & #DSOS26 10-14 August!! This FREE, VIRTUAL event will host 3 workshops and 20 presentations in all things #datascience #openscience #limnology #ecology #hydrology #oceanography. aquaticdatasciopensci.github.io/registration/
aquaticdatasciopensci.github.io
Registration
Conference Template
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Reposted by Sapna Sharma
Dan Mennill @dmennill.bsky.social · 26/03/2026
We're hiring an Assistant Professor of Ecology! Come and join me and a great group of colleagues at University of Windsor in Windsor, Ontario, Canada. Our job ad: efhc.fa.ca2.oraclecloud.com/hcmUI/Candid... Message me if you have questions. @ibiouwindsor.bsky.social @uwindsor.bsky.social
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JL Weissman @jlw-ecoevo.bsky.social · 03/02/2026
Awesome opportunity for a 2 year mentored fellowship that transitions to a TT line at Stony Brook in ecological and/or evolutionary responses to global change through the SUNY Prodigy+ program: apply.interfolio.com/178040
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Reposted by Sapna Sharma
Jen Perry @jennyperry.bsky.social · 23/01/2026
Come work on the beautiful east coast! Our department has a 9 month teaching-focused position advertised. Happy to chat! @stfx-university.bsky.social recruiting.ultipro.ca/GOV5000GOVE/...
recruiting.ultipro.ca
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Reposted by Sapna Sharma
The Guardian @theguardian.com · 16/01/2026
‘We’re in danger of extinction’: can Bolivia’s ‘water people’ survive a rising tide of salt and migration?
theguardian.com
‘We’re in danger of extinction’: can Bolivia’s ‘water people’ survive a rising tide of salt and migration?
The Uru Chipaya, one of South America’s most ancient civilisations, are battling drought, salinity and an exodus of their people as the climate crisis wreaks havoc on their land
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Reposted by Sapna Sharma
MSU Extension Center for Lakes and Streams @msue-lakes-streams.bsky.social · 02/09/2025
Application deadline: September 5, 2025.
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Sapna Sharma @sapnasharma.bsky.social · 27/08/2025
Celebrating the Inaugural UN World Lake Day by sharing our thoughts on water security and freshwater conservation.
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Reposted by Sapna Sharma
Tristy Vick-Majors @tjvmajors.bsky.social · 25/08/2025
Nice new work out in Ecology Letters by Ozersky and colleagues, showing that high latitude lakes will likely feel the greatest impacts of warming winters. onlinelibrary.wiley.com/doi/10.1111/... #winter #limnology
onlinelibrary.wiley.com
Impacts of Changing Winters on Lake Ecosystems Will Increase With Latitude
Climate warming is particularly strong in winter and at high latitudes, driving changes in lake ice and snow cover. Using simple models, we show that the interaction between ice duration and seasonal....
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Reposted by Sapna Sharma
Jim Elser @drlimnology.bsky.social · 04/08/2025
Our overview of the impressive paper by Jensen et al in PNAS about under-ice oxygen levels is out. "Small lakes are suffocating as winters warm" www.pnas.org/doi/10.1073/...
pnas.org
Small lakes are suffocating as winters warm | PNAS
Small lakes are suffocating as winters warm
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Stephanie Hampton @sehampton.bsky.social · 12/06/2025
Hiring a data/lab manager in my research group! Mostly data “wrangling”, data viz, coding for analysis, lots of learning on the job, coordinating our global data projects with many collaborators, oversight of lab operations. 23 June deadline. Job # 78844 jobs.universityofcalifornia.edu
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Reposted by Sapna Sharma
Stephanie Hampton @sehampton.bsky.social · 09/06/2025
I was a little surprised to see something less studied than winter limnology! But there it is! Great to work with this team led by Faith Ferrato and the @sapnasharma.bsky.social team
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Reposted by Sapna Sharma
PLOS Climate @plosclimate.org · 09/06/2025
New Opinion article by Ferrato and colleagues: "Autumn as an overlooked opportunity for limnology" journals.plos.org/climate/arti... @sapnasharma.bsky.social @joshculpepper.bsky.social @cearatalbot.bsky.social @mishafredmeyer.bsky.social @sehampton.bsky.social
journals.plos.org
Autumn as an overlooked opportunity for limnology
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Sapna Sharma @sapnasharma.bsky.social · 05/06/2025
Today on #World Environment Day, we’re launching 3 FREE courses on water sustainability: i) Climate change impacts on ice; ii) Indigenous relationships to water, and iii) Big data analytics. Enrol here: www.yorku.ca/research/wat... Thank you to all of our contributors for sharing their expertise!
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Reposted by Sapna Sharma
Michael Meyer @mishafredmeyer.bsky.social · 22/05/2025
I'm very excited to share that Hacking Limno + DSOS are coming back for the FIFTH time 21-25 July! If you're interested in #machinelearning #remotesensing #modeling #limnology #oceanography, this is for YOU! Registration is FREE + open to ALL! #DSOS25 aquaticdatasciopensci.github.io/registration/
aquaticdatasciopensci.github.io
Registration
Conference Template
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Reposted by Sapna Sharma
Dr. Asmeret Asefaw Berhe @aaberhe.com · 09/05/2025
New pub in @aguadvances.bsky.social: "A Soil Scientist Goes to Washington: Navigating the Path to National #ScienceLeadership" #STEM Sharing my journey as DOE Office of Science Director, the challenges faced, and why inclusive excellence in STEM matters now more than ever. Read: tinyurl.com/ms2nhr4f
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Steve Thackeray @thackers.bsky.social · 07/05/2025
Really good to have contributed to this new study, which uses long-term lake data to detect the impacts of storm events on seasonal phytoplankton growth: onlinelibrary.wiley.com/doi/10.1111/... #freshwater #lake #algae #ExtremeEvents #Windermere @ukceh.bsky.social
A schematic diagram showing an idealised pattern of phytoplankton community succession, with and without a storm disturbance. The storm temporarily reverses the typical seasonal phytoplankton succession pattern.
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Reposted by Sapna Sharma
Tamlin Pavelsky @globalhydro.bsky.social · 19/03/2025
Do you work on lakes globally? Check out what is, to my mind, the most complete global database of lakes (~6M) and associated attributes, newly published in WRR. Also the basis for SWOT lake data. agupubs.onlinelibrary.wiley.com/doi/full/10....
Map of global lake distribution, colored by the number of SWOT overpasses per 21 day cycle. There are many lakes with a high number of SWOT overpasses at high northern latitudes, but there are also tens of thousands to more than a million lakes on every continent. Lakes are graphed by latitude and longitude on the edges of the figure.
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Titus Seilheimer @drfishsg.bsky.social · 12/03/2025
Winter thermal structure across the Laurentian Great Lakes #GreatLakes 🧪 www.sciencedirect.com/science/arti...
sciencedirect.com
Winter thermal structure across the Laurentian Great Lakes
The formation of winter stratification and thermal structure in general across the Great Lakes varies in character not just between lakes, but interan…
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Reposted by Sapna Sharma
Mathew Wells @efdtoronto.bsky.social · 11/03/2025
www.cbc.ca/radio/thecur...
cbc.ca
These ice-loving algae may play a big role in lake health. But time is ticking to learn more | CBC Radio
Researchers are newly documenting a community of algae that hang around just under the ice surface using samples collected by divers. But climate change might threaten the algae — and the new collecti...
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Reposted by Sapna Sharma
Steven J Cooke @sjcfishy.bsky.social · 06/03/2025
What do largemouth bass do under ice in the winter? Read about it here in our latest paper in @cdnsciencepub.bsky.social journal CJFAS. cdnsciencepub.com/doi/full/10....
cdnsciencepub.com
Canadian Science Publishing
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Mathew Wells @efdtoronto.bsky.social · 20/02/2025
A reminder that the abstract deadline for the 2025 Physical Processes in Natural waters meeting is next week on Wednesday 26th February! ppnw2025.smithengineering.queensu.ca/abstracts/ This promises to be a great meeting on processes in lakes, rivers, reservoirs and estuaries. ❄️💧🌊🐟🧪
ppnw2025.smithengineering.queensu.ca
Abstracts – PPNW2025
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Reposted by Sapna Sharma
Jo Latimore @jolatimore.bsky.social · 20/02/2025
Job: Come work with me! Please repost! We're seeking a faculty colleague whose research, teaching, and outreach focuses on water quality and freshwater ecosystems in the context of climate change. Review of applications will begin April 15, 2025. careers.msu.edu/jobs/assista...
An image of a tree-lined lake with the text, "We are hiring. Assistant Professor: Water Quality and Impacts of Climate Change. Visit careers.msu.edu. Job No. 1023203. Michigan State University."
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Reposted by Sapna Sharma
Ichiro Matsuzaki @ichirolake.bsky.social · 04/02/2025
Hi Sapna, Lake Suwa did not freeze until Feb 3, the final observation day. Of course, Omiwatari did not occur this winter. www.shinmai.co.jp/news/article...
shinmai.co.jp
諏訪湖、今季は一度も全面結氷せず 真冬日なしが影響か 立春で「御神渡り」観察は一区切り|信濃毎日新聞デジタル 信州・長野県のニュースサイト
今季、諏訪湖は一度も全面結氷しないまま、八剣神社(諏訪市)による観察は一区切りとなった。御神渡り出現の前提となる全面結氷が見られなかった要因として、宮坂清宮司は観測を始めた1月5日以降、最高気温が0度未満の「真冬日」がなかったことに着目。「張った氷が日中には解けてしまうので、結氷の範囲が広がらなか
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Mathew Wells @efdtoronto.bsky.social · 03/02/2025
Researchers from UTSC and York University took an ice safety and rescue course to prepare for winter limnology research on Lake Simcoe.
Lake simcoe ice training Ice rescue
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Seth Campbell @alpinesciences.bsky.social · 22/01/2025
A new study led by @umaine.bsky.social Climate Change Institute Associate Director, Dr. Jasmine Saros, shows significant rapid changes to Greenland lakes 🧪https://www.pnas.org/doi/full/10.1073/pnas.2413855122?
pnas.org
Abrupt transformation of west Greenland lakes following compound climate extremes associated with atmospheric rivers | PNAS
Arctic ecosystems are affected by accelerated warming as well as the intensification of the hydrologic cycle, yet understanding of the impacts of c...
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David Barrett @davidbarrettyyc.bsky.social · 17/01/2025
Very excited to see some of my PhD work published after much (much) too long! Using mesocosms and controlled ponds, we manipulated ice cover conditions and looked at the corresponding DO, light, and chlorophyll-a regimes. aslopubs.onlinelibrary.wiley.com/doi/10.1002/...
aslopubs.onlinelibrary.wiley.com
Evaluating the influence of snow and ice conditions on under‐ice light regimes, dissolved oxygen, and primary production in shallow lakes using controlled manipulative systems
Shifts in hydroclimatic regimes associated with global climate change are affecting the timing and duration of winter ice-cover in temperate and high-latitude lakes. Less is known on how associated c....
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Titus Seilheimer @drfishsg.bsky.social · 04/01/2025
Lake Superior: Current conditions, trends, and emerging threats – Foreword to the special section #GreatLakes 🧪 www.sciencedirect.com/science/arti...
sciencedirect.com
Lake Superior: Current conditions, trends, and emerging threats – Foreword to the special section
Lake Superior is one of the five Laurentian Great Lakes and the largest lake in the world by surface area. Lake Superior and its surrounding watershed…
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Reposted by Sapna Sharma
Laurence Carvalho @laclaurence.bsky.social · 13/12/2024
A new risk assessment framework to classify #lakes according to their resilience, or sensitivity, to #eutrophication. Applied to 1000 lakes globally. Great working with #EiriniPoliti @brockmannconsult.bsky.social Behind paywall though so DM me if you want a copy. link.springer.com/article/10.1...
link.springer.com
A global typological approach to classify lakes based on their eutrophication risk - Aquatic Sciences
Understanding how lake ecosystems respond to anthropogenic disturbance and climate change is crucial to apply suitable adaptation and remediation measures for their sustainable management and protecti...
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Reposted by Sapna Sharma
Joshua Culpepper @joshculpepper.bsky.social · 12/12/2024
Out today is our paper in @plos.bsky.social examining the role of warming and ice quality on the safe use of lake ice. Find it here: doi.org/10.1371/jour... Thank you to my co-authors: @sapnasharma.bsky.social, Iestyn Woolway, and Lei Huang!
doi.org
Widespread loss of safe lake ice access in response to a warming climate
Millions of people rely on lake ice for safe winter recreation. Warming air temperatures impact the phenology (timing of formation and breakup) and quality (ratio of black to white ice) of lake ice co...
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Reposted by Sapna Sharma
Mark Scheuerell @scheuerell.bsky.social · 09/12/2024
The Dept of Natural Resources and the Environment at Cornell University is hiring a new faculty in #Aquatic #Ecology and #Fisheries #Science. More info here: academicjobsonline.org/ajo/jobs/29092
academicjobsonline.org
Cornell University, Department of Natural Resources and the Environment
Full service online faculty recruitment and application management system for academic institutions worldwide. We offer unique solutions tailored for academic communities.
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Jo Latimore @jolatimore.bsky.social · 05/12/2024
Registration for Michigan State University Extension's award-winning Introduction to Lakes Online course is open! This six-week online class is designed for anyone interested in gaining a greater appreciation for inland lakes. Come learn about lakes with us! www.canr.msu.edu/courses/intr...
Registration for the award-winning Michigan State University Extension Introduction to Lakes Online course is open! This introductory six-week online class is designed for anyone interested in gaining a greater appreciation for inland lakes including concerned residents, decision makers, local leaders, and lakefront property owners. Course instructors include faculty from MSU Extension and state agency personnel.

 

The course covers a variety of topics including lake ecology, watershed management, shoreline protection, aquatic plants, Michigan water law, and community engagement. These topics are explored online through video lectures, interactive activities, and discussion forums. Additional resources are also provided for those looking to dive deeper. Participants communicate with each other and instructors through lively discussion forums and biweekly Ask-an-Expert webinars which include guests from organizations such as the Michigan Department of Natural Resources and the Michigan Department of Environment, Great Lakes, and Energy.

 

Registration is open now through January 28, 2025. The cost of the course is $115 per person. Register by January 6 for an early bird price of $95 per person. Scholarships are available. Current individual members of the Michigan Lakes and Streams Association are eligible to receive a $95 reimbursement upon successful completion of the course.

 

A certificate of completion is awarded to those who complete the class. Participants also can receive continuing education credits including 16 Michigan Department of Agriculture and Rural Development Pesticide Applicator Re-Certification credits (8 commercial core and 8 aquatic) and educational hours in the MSU Extension Master Gardener, Master Citizen Planner, and Michigan Naturalist programs. Learn more and register at www.canr.msu.edu/lakesonline.
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Stephanie Hampton @sehampton.bsky.social · 27/11/2024
I created a Winter #Limnology starter pack - please let me know if you'd like to be added (or removed)! go.bsky.app/UnKfRfA
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Isabella A. Oleksy, Ph.D. @isabellaoleksy.bsky.social · 23/11/2024
Published today: our paper on the ~100 year ice record on Mohonk Lake, a mtn top lake in upstate NY. Ice is forming later, and variability in duration and ice clearance has increased substantially. Notably, recent years have seen intermittent ice cover. bit.ly/mohonkWinter
Ice phenology in Mohonk Lake from 1932 to 2023. Dates of ice‐on and ice‐off are plotted as points. A line segment connects the ice‐on and ice‐off in the same water year and the length and color gradient and point fill correspond to ice‐cover duration. The black line indicates significant Theil‐Sen's slope ( p < 0.05). Triangles indicate years where only ice‐on or ice‐off was recorded.
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Beatrix Beisner @trixiebb.bsky.social · 23/11/2024
Reposting for weekend readers: 🧪 🧪 We are hiring a new limnology professor at UQAM! Come join us in the GRIL in Montreal. Posting is below / Nous embauchons un nouveau prof en limnologie à l'UQAM! Rejoignez-vous à nous dans le GRIL 🧪 🧪 --> bio.uqam.ca/wp-content/u... Please re-post.
bio.uqam.ca
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Mathew Wells @efdtoronto.bsky.social · 23/11/2024
Interesting new paper on winter limnology-“Shorter Ice Duration and Changing Phenology Influence Under‐Ice Lake Temperature Dynamics” agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
Shorter Ice Duration and Changing Phenology Influence Under‐Ice Lake Temperature Dynamics
Ice duration and ice formation are getting shorter or occurring later, and both are increasing in interannual variability Ice break up is not trending earlier, but interannual variability is incr...
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Sapna Sharma @sapnasharma.bsky.social · 19/11/2024
Fantastic lecture by @mishafredmeyer.bsky.social today during our Big Data course hosted by the UNITAR Global Water Academy! You can check out Michael’s and all of the other lectures here: www.yorku.ca/research/wat...
yorku.ca
Courses - UNITAR Global Water Academy @ York U.
Big Data Course In this course, we reveal the power of harnessing open-access data, novel technologies, inclusive internationalcollaborations, and integrating Indigenous knowledge in a two-eyed seeing...
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Stephanie Hampton @sehampton.bsky.social · 16/11/2024
As Ice Coverage of Lakes Decreases, Scientists Work to Understand What Happens Under Water in Winter insideclimatenews.org/news/0311202... Grateful to @lydialarsen.bsky.social for this well done article about our research
insideclimatenews.org
As Ice Coverage of Lakes Decreases, Scientists Work to Understand What Happens Under Water in Winter - Inside Climate News
New research into under-ice conditions is challenging what limnologists thought they understood about lakes’ winter behavior.
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Andrea Kirkwood (she/her) @kirkwoodlab.bsky.social · 16/11/2024
If you teach #freshwater #science #academicsky, I discovered this great collection of articles on lakes written by our colleagues in @theconversation.bsky.social: theconversation.com/ca/topics/ou.... #limnology #teaching
theconversation.com
Our lakes: their secrets and challenges News, Research and Analysis - The Conversation
Browse Our lakes: their secrets and challenges news, research and analysis from The Conversation
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Mathew Wells @efdtoronto.bsky.social · 30/09/2023
This event is on Sunday in Toronto and celebrates the fall salmon run www.eventbrite.ca/e/two-eyed-s...
eventbrite.ca
Two-Eyed Seeing on the Humber; Explore the Salmon Runs
An InTO Ravines event. This public, community event will bring together Anishinabek and Western Science perspectives on the salmon runs
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