Sapna Sharma
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sapnasharma.bsky.social
Sapna Sharma
@sapnasharma.bsky.social
4.6K followers 370 following 11 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
msue-lakes-streams.bsky.social
Application deadline: September 5, 2025.
September 2, 2025 at 3:21 AM
sapnasharma.bsky.social
Celebrating the Inaugural UN World Lake Day by sharing our thoughts on water security and freshwater conservation.
August 27, 2025 at 5:51 PM
Reposted by Sapna Sharma
tjvmajors.bsky.social
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
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....
onlinelibrary.wiley.com
August 25, 2025 at 1:43 PM
Reposted by Sapna Sharma
drlimnology.bsky.social
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/...
Small lakes are suffocating as winters warm | PNAS
Small lakes are suffocating as winters warm
www.pnas.org
August 4, 2025 at 7:09 PM
Reposted by Sapna Sharma
sehampton.bsky.social
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
June 12, 2025 at 1:16 PM
Reposted by Sapna Sharma
sehampton.bsky.social
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
June 9, 2025 at 3:37 PM
Reposted by Sapna Sharma
plosclimate.org
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
Autumn as an overlooked opportunity for limnology
journals.plos.org
June 9, 2025 at 8:30 AM
sapnasharma.bsky.social
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!
June 5, 2025 at 6:07 PM
Reposted by Sapna Sharma
mishafredmeyer.bsky.social
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/
Registration
Conference Template
aquaticdatasciopensci.github.io
May 22, 2025 at 3:35 PM
Reposted by Sapna Sharma
aaberhe.com
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
May 9, 2025 at 6:53 PM
Reposted by Sapna Sharma
thackers.bsky.social
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.
May 7, 2025 at 2:16 PM
Reposted by Sapna Sharma
globalhydro.bsky.social
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.
March 19, 2025 at 12:28 PM
Reposted by Sapna Sharma
drfishsg.bsky.social
Winter thermal structure across the Laurentian Great Lakes

#GreatLakes 🧪

www.sciencedirect.com/science/arti...
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…
www.sciencedirect.com
March 12, 2025 at 5:44 PM
Reposted by Sapna Sharma
efdtoronto.bsky.social
www.cbc.ca/radio/thecur...
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...
www.cbc.ca
March 11, 2025 at 11:17 PM
Reposted by Sapna Sharma
sjcfishy.bsky.social
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....
Canadian Science Publishing
cdnsciencepub.com
March 6, 2025 at 12:04 AM
Reposted by Sapna Sharma
efdtoronto.bsky.social
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.

❄️💧🌊🐟🧪
February 20, 2025 at 2:03 PM
Reposted by Sapna Sharma
jolatimore.bsky.social
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."
February 20, 2025 at 7:39 PM
Reposted by Sapna Sharma
ichirolake.bsky.social
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...
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
www.shinmai.co.jp
February 4, 2025 at 12:40 AM
Reposted by Sapna Sharma
efdtoronto.bsky.social
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
February 3, 2025 at 10:55 AM
Reposted by Sapna Sharma
alpinesciences.bsky.social
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?
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...
www.pnas.org
January 22, 2025 at 2:07 AM
Reposted by Sapna Sharma
davidbarrettyyc.bsky.social
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/...
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....
aslopubs.onlinelibrary.wiley.com
January 17, 2025 at 8:46 PM
Reposted by Sapna Sharma
drfishsg.bsky.social
Lake Superior: Current conditions, trends, and emerging threats – Foreword to the special section

#GreatLakes 🧪

www.sciencedirect.com/science/arti...
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…
www.sciencedirect.com
January 4, 2025 at 8:57 PM
Reposted by Sapna Sharma
laclaurence.bsky.social
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...
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...
link.springer.com
December 13, 2024 at 12:31 PM
Reposted by Sapna Sharma
joshculpepper.bsky.social
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!
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...
doi.org
December 12, 2024 at 2:40 AM
Reposted by Sapna Sharma
scheuerell.bsky.social
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
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.
academicjobsonline.org
December 9, 2024 at 7:47 PM