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Andras Szeitz

@andrasszeitz.bsky.social
114 followers 132 following 18 posts

PhD candidate curious about stream temperature + environmental change in northern Canada Watershed Hydrology Group | McMaster University

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Reposted by Andras Szeitz
Iain A Malcolm @iainamalcolm.bsky.social · 01/02/2026
New study: As lice pressure increased, the specific growth rate of returning fish declined. "Wild-origin fish had a greater return rate than hatchery-origin fish at all levels of lice infestation pressure, with the difference increasing with increasing pressure" academic.oup.com/icesjms/arti...
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Arsh Grewal @akgrewal.bsky.social · 16/01/2026
I'm currently looking for an MSc student to characterize water ages and storage in cold catchments. Several potential projects available, and I will support students who want to develop their own! If interested, please reach out soon at akgrewal@usask.ca, as Sept 2026 app deadlines are approaching!
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Justin McElroy 🇨🇦 @jmcelroy.bsky.social · 12/01/2026
Gonna highlight another example of how you can think things are bad or getting worse when the opposite is probably true. Here's a story framed a certain way last year while I was still on vacation. Takeaway: "the province is a dangerous place for pedestrians and cyclists." But is it true?
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Arsh Grewal @akgrewal.bsky.social · 25/09/2025
Hot off the press! New paper characterizing storage and release processes in two permafrost catchments with @theoryofciaran.bsky.social @seankcarey.bsky.social. We characterized these processes by closing the water balance, EMMA, and StorAge Selection Functions (1/n) doi.org/10.1029/2024...
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Andras Szeitz @andrasszeitz.bsky.social · 03/09/2025
You know you're a grizzled late-stage PhD student when the first year students, on campus for the first time, hold the door open for you and call you 'sir'. T+2 days
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Andras Szeitz @andrasszeitz.bsky.social · 29/07/2025
⌛ Clock's ticking down but there is still time to submit your abstract to the best AGU session this year, H126 River Water Temperature! There are options to present virtually as well as in-person in New Orleans. Abstract submission deadline is Wed, 30 July, 23:59 EDT!!
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Iain A Malcolm @iainamalcolm.bsky.social · 28/07/2025
A fantastic job opportunity for someone to work at the interface between Atlantic salmon habitat modelling and management. Cutting edge research as part of an excellent project team.
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Iain A Malcolm @iainamalcolm.bsky.social · 19/07/2025
1. Accurate (unbiased and precise) quality controlled data are essential for understanding and monitoring trends in river temperature. However, researchers often collate and analyse data without consideration of these issues. A new 📜 & summary🧵 onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
The Influence of Equipment Bias on Reported Temperature Trends: Implications for River Temperature Monitoring Networks
River temperature is an important control on ecosystem health. Concerns around climate change impacts and availability of lower cost sensors have led to an increase in temperature monitoring of aquat....
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Christa Kelleher @hydrochrista.bsky.social · 21/07/2025
#AGU25 abstracts are due July 30! If you're doing any work on river temperature, we'd love to see you in New Orleans this December!! With: @andrasszeitz.bsky.social, @freshwaterflows.bsky.social, and #LorrayneMiralha
This image advertises the AGU session H126 River Water Temperature: Patterns, Processes, Impacts, and Management. We welcome contributions that deepen our understanding and offer actionable solutions for rivers under stress. The post also contains a QR code that, when scanned, takes you to the session website.
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Andras Szeitz @andrasszeitz.bsky.social · 25/06/2025
1/3 🧵 📢 ‼️ Are you interested in stream temperature and stream temperature modelling? Well you're in luck! We are organizing a workshop on stream temperature modelling at with presentations and guided discussions, at UQO in Gatineau, QC, October 15 - 16. More details in thread below! ‼️📢
A banner advertisement with the title of the event, "Workshop on process-based approaches to stream temperature modelling", the dates of 15-16 October, and the location of the workshop at UQO in Gatineau, QC. A snazzy visualization of a thermal stream with discretization entices viewers to consider attending :)
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Arsh Grewal @akgrewal.bsky.social · 12/06/2025
New paper alert in HESS with Erin Nicholls and @seankcarey.bsky.social ! We used generalized additive models to assess the drivers of seasonality in stream chemistry across ten permafrost catchments in the Yukon Territory! (1/n) hess.copernicus.org/articles/29/...
hess.copernicus.org
The role of catchment characteristics, discharge, and active- layer thaw in seasonal stream chemistry across 10 permafrost catchments
Abstract. High-latitude catchments are rapidly warming, leading to altered precipitation regimes, widespread permafrost degradation, and shifts in stream chemistry across major arctic rivers. In headw...
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J. Tyler de Jong @snowhydro-ty.bsky.social · 30/04/2025
Wow, here's the Yukon River ice break-up in the territory of the Trʼondëk Hwëchʼin. Our research group at YukonU had boots on the ground and eyes in the sky (plane/UAV) to make observations. These observations help researchers create models to better predict and respond to flooding due to ice jams.
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Canadian Geophysical Union @cgu-ugc.bsky.social · 23/04/2025
We're new here! Help us connect with our members and interested followers 😀
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Canadian Journal of Earth Sciences @canjearthsci.bsky.social · 31/03/2025
We're thrilled to share that CJES, a @cdnsciencepub.com journal, will be joining the BlueSky community soon! Stay tuned for updates as we prepare to connect, share, and engage with researchers and science enthusiasts in this exciting space. See you soon! 🌟 #ScienceCommunication #BlueSky
Social card with black background. The Canadian Journal of Earth Science logo sits in the top left corner. The copy in the bottom left corner reads 'A Canadian Science Publishing Journal'. The Canadian Science Publishing blaze emblem sits in the bottom right corner.
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Physgal ⚛️ @physgal.bsky.social · 18/04/2025
Calling all US and Canadian students thinking about graduate studies! Come study science at #SFU in beautiful British Columbia, Canada. Graduate admissions have been reopened. Apply by April 25th. ⚛️ 🧪👩‍🔬🎢 🇨🇦
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Auke-Florian 🪹 @aukeflorian.nl · 09/04/2025
NEW PAPER, JUST OUT! 👀 Insects from the '70s and '80s were already collecting microplastic, decades before the term microplastic even existed. 🤯 A thread on the surprising history of this pollutant and the incredible insect larvae that helped us uncover it. 🐛 Let's dive in! 🧵👇 1/x
Lead author Auke-Florian Hiemstra holds the oldest known caddisfly casing containing microplastic, dating to 1971. Photo: Liselotte Rambonnet.A caddisfly casing with pieces of blue microplastic, dating 1986. Photo: Auke-Florian Hiemstra
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Sean Carey @seankcarey.bsky.social · 06/04/2025
Field season 2025 underway. Have a feeling it will be an early spring in Yukon. @rtutto.bsky.social @dbarrett867.bsky.social and Calvin doing all the work.
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Andras Szeitz @andrasszeitz.bsky.social · 14/03/2025
Happy field work Friday! Had 2nd year undergraduate students out measuring stream flow on @mcmasteruniversity.bsky.social west campus this week for a hydrology lab session. Despite a couple leaky waders, the students loved the practical hands-on experience. We saw a mink too! 🦦 #Neature
Students measuring streamflow using the velocity-area method.We tested salt dilution gauging as well, meaduring the electrical conductivity on both banks. No surprise that this stream is not well suited for that measurement method!
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Andras Szeitz @andrasszeitz.bsky.social · 27/02/2025
First paper of my PhD published, woo! It asks how stream thermal sensitivity is influenced by northern environmental factors *cough* permafrost *cough* Key pf. take-away: permafrost may both increase and moderate thermal sensitivity. Get the details here!: hess.copernicus.org/articles/29/...
hess.copernicus.org
The influence of permafrost and other environmental factors on stream thermal sensitivity across Yukon, Canada
Abstract. Thermal sensitivity, defined as the slope of a linear regression between stream and air temperatures, is a useful indicator of the strength of coupling between meteorological forcings and st...
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Luka Vucinic @luximus.bsky.social · 17/11/2024
I've started working on this starter pack (Hydrology+Hydrogeology+Water in general) to help friends/colleagues who are migrating from the other place. Please note that this is work in progress and that more people will be added. Feel free to suggest BlueSky handles in comments. go.bsky.app/2h9ouZY
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Paige S Becker, Ph.D. @paigeinabook.bsky.social · 11/10/2023
I made a Water Science 💧 Feed! I already added some folks to it and am slowly figuring out how to add more folks, but if you use "hydrology", "watersci", "waterscience" or the 💧 it should pop up in the feed! If you can't find it, let me know and I'll try to add you!
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Matt Lindsay @mbjlindsay.bsky.social · 23/09/2023
Another field work photo from Yukon, Canada. This one shows pH dependent mineral precipitation at the confluence of two streams. The white colour is from aluminum precipitates and orange colour is from iron precipitates. This phenomenon results from natural weathering of shales.
Confluence of two streams green bushes and blue sky. Stream on left has white colour and stream on right has orange colour.
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Andras Szeitz @andrasszeitz.bsky.social · 12/09/2023
For any ecohydrologists on bluesky, does this look like beaver chew?
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Andras Szeitz @andrasszeitz.bsky.social · 08/08/2023
First salt tracer study successfully completed in my Yukon study streams!! Lots of surface and subsurface transient storage in these permafrost-rich headwater streams. Having some good tunes makes the stirring much easier. Many thanks to Matt Lindsay at USask for lending the geopump!
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