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tpetzoldt.bsky.social

@tpetzoldt.bsky.social
82 followers 99 following 82 posts

aquatic ecology, ecological modelling, biostatistics

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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 04/10/2026
www.tagesschau.de/inland/innen...
tagesschau.de
Schneider fordert anderen Umgang mit Wasser
Wegen der niedrigen Pegelstände hat Bundesumweltminister Schneider ein Umdenken im Umgang mit Wasser angemahnt. Er rief die Bundesländer zu massiven Investitionen in die Wasserinfrastruktur auf.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 29/09/2026
Wie können städtische Fließgewässer zugleich den Menschen und der Natur dienen? Ökosystemleistungen urbaner Gewässer am Beispiel von tschechischen und sächsischen Städten. Auftaktkonferenz des Projekts #ECOSEVA, TU Liberec, 5. November 2026. ecoseva.tul.cz/de/konferenz... #Limnology
Flyer zur Eröffnungskonferenz des ECOSEVA-Projekts ‚Wasser in der Stadt – Ökosystemleistungen urbaner Gewässer: Balance zwischen Mensch und Natur'. Die Konferenz findet am 5. November 2026 im Gebäude G der Technischen Universität Liberec, Univerzitní náměstí 1410/1, Liberec, statt. Auf dem Flyer stehen der Projekttitel und die Konferenzdetails im Vordergrund, unten die Projekt-Website ecoseva.tul.cz/de.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 21/09/2026
Waterways and Education Know No Borders ECOSEVA: New #Interreg Project on Ecosystem Services of Urban Waterways - New Challenges for Cross-Border Education in the Czech Republic and Saxony. The web page is now online: ecoseva.tul.cz @dgl-ev.bsky.social @tudresden.bsky.social #limnology
Photo of a border-crossing river in blue, and a text: "Waterways and Education Know No Borders

ECOSEVA: Ecosystem Services of Urban Waterways—New Challenges for Cross-Border Education in the Czech Republic and Saxony

Project Duration: July 1, 2026–December 31, 2028"
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 21/09/2026
We should be prepared. In science and daily communication with our colleagues, friends and the public. Even in Europe.
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Michael Meyer @mishafredmeyer.bsky.social · 17/09/2026
Our Remotely Sensed Lake Surface Temperature Data Paper is live in @aslo.org #LOLetters! we use Landsat 8 to aggregate skin surface temperatures for over 130,000 lakes of at least 4 ha in the US 2013-present! #opendata #remotesensing aslopubs.onlinelibrary.wiley.com/doi/10.1002/...
aslopubs.onlinelibrary.wiley.com
National‐scale remotely sensed lake surface temperature in the contiguous United States
Temperature is a master variable in aquatic ecosystems. Despite its importance for ecosystem function, our capacity to measure temperature is often limited to focal systems with intensive in situ mea...
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 17/09/2026
Presentation of the @cyanoaction.bsky.social COST action at the German #Limnology Conference #DGL2026. The poster explained the 5Work Groups and interaction with stakeholder target groups.
Poster presenter (left) and Cyanoaction poster (right).
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DGL - Deutsche Gesellschaft für Limnologie @dgl-ev.bsky.social · 17/09/2026
Plenary talk of Gabriel Singer (University of Innsbruck) at #DGL2026 about "Catalyzing engaged river science at large scales". By example of the undammed Greek/Albanian Vjosa, he demonstrates how geological diversity and dispersal processes promote high beta-biodiversity.
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TU Dresden @tudresden.bsky.social · 16/09/2026
Elf Billionen Tonnen seit den 1970er Jahren: Die Eisschilde Grönlands & der Antarktis nehmen hauptsächlich durch beschleunigte Gletscherbewe­gung ab. An einer nun veröffentlichten großen Studie dazu waren auch Geodäten der #TUDresden beteiligt. 🧊 ℹ️ tu-dresden.de/tu-dresden/n...
Foto: Ausflussgletscher in der Pine-Island-Bucht (Westantarktis) mit vorgelagertem aufschwimmenden Schelfeis.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 14/09/2026
German #Limnology Conference in Berlin -- #DGL2026 started! An excellent conference app makes navigation easy. No download or registration necessary. Local storage of personal schedule. Runs out of the box. 💙
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 12/09/2026
Cyanoaction launches a Pan-European Stakeholder Survey on Harmful #Cyanobacteria Blooms. It is intended for water managers, researchers, authorities, organisations and all stakeholders: t1p.de/8eucc @cyanoaction.bsky.social @dgl-ev.bsky.social @freshwaterbio.bsky.social @epcn.bsky.social
Promotional infographic for the "CyanoAction CA23160 Pan-European Survey on Cyanobacterial Blooms and Mitigation Measures." 

Set against a background photo of a green, algae-blooming lake surrounded by trees, the text invites users to "Help us build the first Europe-wide overview of cyanobacterial bloom management!" 

A circular badge highlights that the survey is "Available in 20 languages," illustrated with a grid of 20 European national flags.

A "Why Participate?" section lists four benefits with icons: 

- Provide valuable information from your country
- Contribute to better management of freshwater ecosystems
- Help identify challenges and best practices across Europe and 
- Support research, policy and decision-making.

A green and blue "Take the survey!" box notes it takes 10–15 minutes and includes a button to "Click the link and share your experience!" https://cyanoaction.eu/cyanoaction-launches-a-pan-european-stakeholder-survey-on-harmful-cyanobacterial-blooms/ 

The bottom section features three icons with text stating the initiative is "Together for healthier lakes and reservoirs across Europe!", is intended "For water managers, researchers, authorities, organisations and all stakeholders," and that "The survey is open now!"

The footer contains the EU flag with the "COST European Cooperation in Science & Technology" logo, the project's full title "Effective Lake Management: Reducing Cyanobacterial Blooms by Actions in the Catchment" and the website https://www.cyanoaction.eu
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Crossref @crossref.bsky.social · 09/09/2026
Two themes ran through nearly every session at FORCE2026 in Singapore: research assessment reform and research integrity. A third kept surfacing: the push to move scholarship beyond the static PDF, toward modular research components. Read more on our blog. 🔗 doi.org/10.64000/n38s7-yfj33
Crossref blog: To go far, go together: reflections from FORCE2026
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TU Dresden @tudresden.bsky.social · 20/08/2026
Am 7. September beginnt das STADTRADELN in #Dresden. 🚲 Wer teilnimmt, kann für sein Team & seine Kommune Kilometer sammeln. Die Daten der STADTRADELN-App werden zudem von Verkehrswissenschaftler:innen der TUD zu Forschungszwecken anonymisiert ausgewertet. Mehr Infos ➡️ tu-dresden.de/tu-dresden/n...
Foto: Ein Fahrradfahrer fährt auf dem Elberadweg. Im Hintergrund die Silhouette der Stadt Dresden mit der Frauenkirche und dem Schloss. Im Vordergrund Gras, das am Wegesrand steht.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 16/08/2026
{biblioview} an #rstats package and shiny app for sharing @zotero.org libraries with students and colleagues read-only in tabular form. Allows enrichment with citation counts and missing abstracts. Install and docs available from Github and tpetzoldt.r-universe.dev/biblioview
biblioview dashboard showing #rstats-related literature. Controls at the left side, data table on the right with topic, author, year, doi or url, citation and abstract.
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Umweltbundesamt @umweltbundesamt.bsky.social · 14/08/2026
Zeit und Geld sparen und ganz nebenbei #Umwelt und #Klima schonen: Leitungswasser ist ohne Verpackung und Transport direkt in der Küche verfügbar. Es ist außerdem sauber, umweltfreundlich und gesund. Unsere Tipps zum Thema: www.umweltbundesamt.de/umwelttipps-...
Keine Verpackung, kein Transport. Leitungswasser ist das umweltfreundlichste Getränk.
Schon gewusst? Leitungswasser gehört zu den am besten überwachten Lebensmitteln. Es kann in Deutschland nahezu überall bedenkenlos getrunken werden.
Außerdem ist es unschlagbar günstig: 5 Liter kosten ca. 1 Cent.
Mehr Infos auf uba.de
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 08/08/2026
Hot temperatures are triggering increased #Cyanobacteria blooms in German recreational lakes and reservoirs, posing health risks for people and pets. See recent news report: www.mdr.de/nachrichten/... cc: @cyanoaction.bsky.social @ufz.de
mdr.de
Durch Klimaerwärmung begünstigt: Immer häufiger Blaualgen in mitteldeutschen Badeseen
An den Badeseen in Mitteldeutschland gibt es nur selten hygienische Probleme. Seenforscher Karsten Rinke sieht dennoch wachsende Herausforderungen durch den ökologischen Zustand der Gewässer. Vor alle...
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Charlie Gao @shikokuchuo.net · 09/07/2026
Until next time! It's been a fantastic #useR2026 in Warsaw. Honestly, there's a real depth to the talent we have in our #Rstats community. Keep doing your amazing work and wow us all at the next conf! (can you spot me here?)
useR!2026 participant photo
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 23/06/2026
DSOS/Hacking Limnology Banner.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 22/06/2026
European #limnology conference next year 2027 in the Netherlands. Website with dates and call for special sessions is online: www.sefs15.com
sefs15.com
SEFS15 2027 | Freshwater Sciences Conference
The 15th symposium for European Freshwater Sciences will be in Utrecth, in The Netherlands in 2027
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 18/06/2026
www.linkedin.com/posts/maria-...
linkedin.com
Please send your applications in good time if you want to learn more on in situ treatments of lakes. | Maria G. Antoniou
Please send your applications in good time if you want to learn more on in situ treatments of lakes.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 10/06/2026
I agree completely. After many trial and error experiments with diverse reporting and presentation classes Quarto changed my workflow as much as R years ago. And, it's getting better and better 📈
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 06/06/2026
Unitag an der @tudresden.bsky.social Fachschaftsvertreterinnen und Lehrende beantworten eure Fragen zum Studium und zu beruflichen Perspektiven.
Stand der Hydrowissenschaften, Zwei Studentinnen der Fachschaft, Poster, Flyer, Mikroskop mit Wasserflöhen.
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Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB) @igb-berlin.de · 05/05/2026
Antibiotic resistance is not only a clinical issue. A new study shows that antibiotic-resistant genes can be found in aquatic environments, particularly in wastewater treatment plant effluent and in urban water bodies. Even remote lakes are affected. 👉 www.igb-berlin.de/en/news/urba...
igb-berlin.de
Urban water bodies are heavily contaminated with antibiotic-resistant bacteria
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 15/04/2026
Trinkwassertalsperren reagieren deutlich auf die Klimaerwärmung. Eine Analyse von Langzeitdaten zeigt hochsignifikante Trends, seit 1995 im Mittel 1,4 Grad. Details in der aktuellen Ausgabe der WasserWirtschaft (free access): doi.org/10.1007/s351...
Das Bild zeigt die Temperaturtrends einer repräsentativen Stichprobe deutscher und Luxemburgischer Talsperren im Juni. Mit Ausnahme stark durchflossener Gewässer steigt die Temperatur überall an.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 12/04/2026
Looks very interesting, probably also for @cyanoaction.bsky.social
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Michael Friendly @datavisfriendly.bsky.social · 05/04/2026
Great design! The map as background can easily be bent to serve its purpose
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 02/04/2026
Just arrived. A new book for my bookshelf. #limnology #rstats @cyanoaction.bsky.social
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 12/03/2026
Congrats to @heathrturnr.fosstodon.org.ap.brid.gy on joining the R Core Team! 🙂💜R I still remember your inspiring talk and the exchange with Douglas Bates at one of the first useR!'s in Vienna. Your dedication to the R community and @rladies.org is highly motivating. Wishing you all the best!
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TU Dresden @tudresden.bsky.social · 11/03/2026
TUD bleibt Exzellenzuniversität: 🎉 Die #TUDresden hat ihren Status als Exzellenzuniversität erfolgreich verteidigt. Mit 5 Exzellenzclustern & einer überzeugenden Gesamtstrategie gehört die TUD damit weiterhin zur Spitzengruppe der deutschen Forschungsuniversitäten. ℹ️ tu-dresden.de/tu-dresden/n...
Foto von TUD-Rektorin Prof. Ursula M. Staudinger im Beisein zahlreicher Gäste im Festsaal des Rektorats der TU Dresden zur Bekanntgabe der Exzellenzuniversitäten.Gruppenfoto von Sachsen Ministerpräsident Michael Kretschmer, TUD-Rektorin Prof.in Ursula M. Staudinger und Wissenschaftsminister Sebastian Gemkow.Foto von TUD-Rektorin Prof. Ursula M. Staudinger, die im Festsaal des Rektorats der TU Dresden zu zahlreichen Personen spricht bei der Bekanntgabe der Exzellenzuniversitäten.Gruppenfoto der TUD-Rektoratsmitglieder Prof. Lars Bernard, Prof.in Roswitha Böhm, Prof.in Ursula Staudinger, Prof.in Angela Rösen-Wolff, Prof. Niels Modler sowie Sachsens Ministerpräsident Michael Kretschmer und Wissenschaftsminister Sebastian Gemkow.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 09/03/2026
Accepted paper from my colleagues of the photogrammetry group at @tudresden.bsky.social on 3D LIDAR mapping of turbidity in lakes! I had a great experience being part of the ground team at Lake Erlauf, Austria, and contributing to the writing process. Check it out here: doi.org/10.1007/s410...
doi.org
Mapping 3D Water Turbidity with LiDAR Bathymetry: a Contribution to Water Quality Assessment - PFG – Journal of Photogrammetry, Remote Sensing and Geoinformation Science
Water turbidity is an important indicator of water quality, as it allows for conclusions on the particles contained in the water. Suspended matter, sediments, algae and other particles in the water co...
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 05/03/2026
Aktuell eine interessante und sehr differenzierte Sendung zum Thema "Reizflut" auf 3sat in der Reihe #Nanotalk, u.a. mit Alena Buyx und @positivemaren.bsky.social
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 15/02/2026
Possibly relevant for @cyanoaction.bsky.social
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useR! - The R User Conference @user-conf.bsky.social · 11/02/2026
📣 The useR! 2026 committee invites global R users and developers to submit abstracts for talks, panels, posters, and tutorials! Submissions are peer-reviewed based on content and balance. You're welcome to apply! Find more at: user2026.r-project.org/call/ #useR2026 #DataScience #Poland #Warsaw
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Tiffany Timbers @tiffanytimbers.bsky.social · 04/02/2026
"Ten simple rules for teaching data science": arxiv.org/abs/2602.02874 A new preprint by @minecr.bsky.social and myself. We'd love any feedback!
arxiv.org
Ten simple rules for teaching data science
Teaching data science presents unique challenges and opportunities that cannot be fully addressed by simply borrowing pedagogical strategies from its parent disciplines of statistics and computer scie...
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 20/12/2025
Very interesting and plausible from the viewpoint of an #ecological modeler. #limnology #cyanobacteria @cyanoaction.bsky.social
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 08/12/2025
✨ DIY #Adventsbeleuchtung ✨ Kleine Bastelei für den #Advent: #Herrnhuter Sterne stromsparend steuern. Flexible Zeitschaltung mit WLAN und Dimmfunktion. Gruß an die Licht-Tradition aus Dresden, Lausitz und Erzgebirge. 👉 tpetzoldt.github.io/toy-sensors/...
Drei Hernhuter Adventssterne leuchten am dunklen Fenster. Rechts im Bild eine Platine mit einer Mikrocontroller-Schaltung und in der Mitte eine Geschenkebox als Gehäuse.
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Daniel Hering @danielheringude.bsky.social · 27/11/2025
The situation of postdocs in Germany has made it to Nature: www.nature.com/articles/d41...
nature.com
How to stop the revolving door of German academia
Germany is one of the most popular destinations for students and scholars worldwide, but those pursuing academic careers face significant hurdles to success.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 12/11/2025
Great! All @cyanoaction.bsky.social people should read it.
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Umweltbundesamt @umweltbundesamt.bsky.social · 24/10/2025
📊Neues aus der #UBAForschung: UBA unterzeichnet „Berliner Erklärung über den offenen Zugang zu wissenschaftlichem Wissen“ und bekennt sich damit & mit #openUMWELT zu #OpenAccess: www.umweltbundesamt.de/themen/umwel... Bild-Credit: Susanne Kambor
Das Innere des UBA-Hauptsitzes in Dessau-Roßlau. Credit: Susanne Kambor
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 24/10/2025
At @tudresden.bsky.social, bilateral EU Interreg projects are focusing on a wide range of water related topics. The lecture series #WaterWithoutBorders offers insights into current research and cross-border cooperation in science and in practice: tud.link/cvz7xt #limnology @dgl-ev.bsky.social


Lecture Series Winter Term 2025/2026: Water Without Borders - Interdisciplinary Perspectives on Cross-Border Water Protection in Europe (in English). TU Dresden GÖR/127/U Every Tuesday from 21/10/25 18:30-20:00.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 21/10/2025
Wow, excellent! Will definitely be integrated in my course Material.
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Achim Zeileis @zeileis.org · 17/10/2025
💡 Came across this nice tool today: 🎨 qualpal for algorithmically choosing maximally distinct colors under certain restrictions #dataviz JOSS paper, online tool, R package #rstats joss.theoj.org/papers/10.21...
joss.theoj.org
Qualpal: Qualitative Color Palettes for Everyone
Larsson, J., (2025). Qualpal: Qualitative Color Palettes for Everyone. Journal of Open Source Software, 10(114), 8936, https://doi.org/10.21105/joss.08936
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Achim Zeileis @zeileis.org · 17/10/2025
R package on CRAN #rstats cran.r-project.org/package=qual...
cran.r-project.org
qualpalr: Automatic Generation of Qualitative Color Palettes
Automatic generation of maximally distinct qualitative color palettes, optionally tailored to color deficiency. A list of colors or a subspace of a color space is used as input and then projected to t...
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 10/10/2025
An interesting paper for all friends of Daphnia, including researchers from the German Limnological Society @dgl-ev.bsky.social
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DGL - Deutsche Gesellschaft für Limnologie @dgl-ev.bsky.social · 10/10/2025
Die Deutsche Gesellschaft für Limnologie findet ihr jetzt auch unter Bluesky 🦋. Wir ermutigen euch als Mitglieder und Sympathisant:innen, eure Projekte und Publikationen zu bewerben. Nutzt unsere Hashtags #DGL_ev #Limnologie oder unseren Handle @dgl-ev.bsky.social, um uns zu taggen!
See mit einem Schiff, das Wellen hinter sich herzieht. Außerdem das Logo der DGL un die Texte: "Deutsche Gesellschaft für Limnologie e.v.", "dgl-ev.bsky.social" und "https://dgl-ev.de".
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 01/10/2025
Huge congrats to Sylvia Bonilla 🏆 on winning the Kilham Memorial Lecture Award from SIL! Her vital work on toxic cyanobacteria across Latin America is attracting high interest from researchers across Europe and worldwide. 🔬🌍 @cyanoaction.bsky.social @ictc13.bsky.social
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 08/09/2025
Fascinating an motivating plenary talk from @florianaltermatt.bsky.social at #DGL2025. He made a strong plea for rethinking the way we use eDNA to monitor aquatic biodiversity. Inspired me to read more about his research.
Florian Altermatt and a slide with his proposed pipeline.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 08/09/2025
Klement Trockner, Senkenberg Naturforschung auf der #DGL2025: Mehr Prävention wagen: Wege aus der Polykrise.
Klement Trockner und Vergleich Kosten von Flaschen- und Leitungswasser.
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tpetzoldt.bsky.social @tpetzoldt.bsky.social · 08/09/2025
Opening plenary of Mark Gessner at #DGL2025, the annual German limnology conference, of DGL and @sil-limnology.bsky.social Germany, this year in Frankfurt
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Michael Meyer @mishafredmeyer.bsky.social · 04/09/2025
New paper alert!! Our viewpoint piece uses data from the U.S. EPA National Lakes Assessment + Landsat to see how differing definitions of trophic state can skew and enhance our understanding of lake ecosystems! @ecologicalsociety.bsky.social esajournals.onlinelibrary.wiley.com/doi/10.1002/...
esajournals.onlinelibrary.wiley.com
Clarifying the trophic state concept to advance macroscale freshwater science and management
For over a century, ecologists have used the concept of trophic state (TS) to characterize an aquatic ecosystem's biological productivity. However, multiple TS classification schemes, each relying on...
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Kevin Patrick O'Brien @kobriendublin.bsky.social · 10/08/2025
User! Conference 2026 will take place in Warsaw, Poland 🇵🇱 Provisional dates: Dates Monday 6th July to Thu 9th July 2026. Hope to see you all there. #rstats #user2025 #warsaw
Alt text: A vibrant, stylized nighttime cityscape symbolizing Warsaw, Poland, host of the UseR! 2026 Conference. A glowing river winds through the city, bordered by illuminated buildings that blend modern skyscrapers with traditional European architecture. The deep blue sky sparkles with stars and celestial bodies, and a large moon-like orb at the center displays a bold letter "R"—a nod to the R programming language, widely used for statistical computing, data analysis, and visualization. The image’s rich blues and warm yellows evoke both innovation and cultural heritage. The UseR! Conference series is the premier international gathering for R users and developers, fostering collaboration, sharing cutting-edge research, and promoting open-source tools. This artistic depiction captures the excitement and creativity of the global R community coming together in Warsaw for learning, networking, and advancing data science.
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