Florian Leese
@leeselab.bsky.social
Professor at University of Duisburg-Essen 🇪🇺🇩🇪 tweeting mostly about the work we do in our Aquatic Ecosystem Research Group. A lot of DNA / eDNA & popgen stuff on streams & automated biodiversity monitoring approaches.
Reposted by Florian Leese
New study on the spatial dimension of multiple stressors. Gemma Burgazzi (iDiv) did a great job in running this mesocosm experiment. Effects of single stressors cascaded along the network, with stronger downstream effects. Thanks to all contributors! @leeselab.bsky.social doi.org/10.1002/ecog...
November 24, 2025 at 6:56 AM
New study on the spatial dimension of multiple stressors. Gemma Burgazzi (iDiv) did a great job in running this mesocosm experiment. Effects of single stressors cascaded along the network, with stronger downstream effects. Thanks to all contributors! @leeselab.bsky.social doi.org/10.1002/ecog...
Reposted by Florian Leese
In massive #collaborative #effort, we assembled published & unpublished #fish 🐟 #eDNA 🧬 metabarcoding datasets, covering ~2000 sampling sites/>100 river systems globally. 🐟 🐠 🐡 🌐 🌍
Now results out in 2 #parallel #preprints @biorxiv-ecology.bsky.social
#aquatic #biodiversity #meta-analysis
1/6🧵
Now results out in 2 #parallel #preprints @biorxiv-ecology.bsky.social
#aquatic #biodiversity #meta-analysis
1/6🧵
September 29, 2025 at 1:32 PM
In massive #collaborative #effort, we assembled published & unpublished #fish 🐟 #eDNA 🧬 metabarcoding datasets, covering ~2000 sampling sites/>100 river systems globally. 🐟 🐠 🐡 🌐 🌍
Now results out in 2 #parallel #preprints @biorxiv-ecology.bsky.social
#aquatic #biodiversity #meta-analysis
1/6🧵
Now results out in 2 #parallel #preprints @biorxiv-ecology.bsky.social
#aquatic #biodiversity #meta-analysis
1/6🧵
Every year a highlight & intense period: Our molecular ecology module! We train advanced Master students on how to apply DNA & #eDNA #metabarcoding to assess riverine #biodiversity.
Long #Day1 today as we sampled until 19:30. Motivation: 10/10. Tomorrow: to the lab! @unidue.bsky.social @sgn.one
Long #Day1 today as we sampled until 19:30. Motivation: 10/10. Tomorrow: to the lab! @unidue.bsky.social @sgn.one
September 8, 2025 at 8:44 PM
Every year a highlight & intense period: Our molecular ecology module! We train advanced Master students on how to apply DNA & #eDNA #metabarcoding to assess riverine #biodiversity.
Long #Day1 today as we sampled until 19:30. Motivation: 10/10. Tomorrow: to the lab! @unidue.bsky.social @sgn.one
Long #Day1 today as we sampled until 19:30. Motivation: 10/10. Tomorrow: to the lab! @unidue.bsky.social @sgn.one
Reposted by Florian Leese
New database on thermal tolerance on freshwater invertebrates and fish - major effort by Helena Bayat and many collaborators. Freely available here: www.nature.com/articles/s41...
September 2, 2025 at 12:08 PM
New database on thermal tolerance on freshwater invertebrates and fish - major effort by Helena Bayat and many collaborators. Freely available here: www.nature.com/articles/s41...
Reposted by Florian Leese
There is funding for early career scientists to attend!
15th Water Research Horizon Conference of the #WaterScienceAlliance will take place @ruhr-uni-bochum.de 29/30 September. Focus: #urban water bodies / #watercycle
Time for inter- & transdisciplinary discussions. Also: Award ceremony of new junior #research group
water-research-horizon.de/wrhc.html RT
Time for inter- & transdisciplinary discussions. Also: Award ceremony of new junior #research group
water-research-horizon.de/wrhc.html RT
September 2, 2025 at 5:42 AM
There is funding for early career scientists to attend!
15th Water Research Horizon Conference of the #WaterScienceAlliance will take place @ruhr-uni-bochum.de 29/30 September. Focus: #urban water bodies / #watercycle
Time for inter- & transdisciplinary discussions. Also: Award ceremony of new junior #research group
water-research-horizon.de/wrhc.html RT
Time for inter- & transdisciplinary discussions. Also: Award ceremony of new junior #research group
water-research-horizon.de/wrhc.html RT
September 2, 2025 at 5:05 AM
15th Water Research Horizon Conference of the #WaterScienceAlliance will take place @ruhr-uni-bochum.de 29/30 September. Focus: #urban water bodies / #watercycle
Time for inter- & transdisciplinary discussions. Also: Award ceremony of new junior #research group
water-research-horizon.de/wrhc.html RT
Time for inter- & transdisciplinary discussions. Also: Award ceremony of new junior #research group
water-research-horizon.de/wrhc.html RT
Reposted by Florian Leese
By comparing three strategies for local bioassessments in streams using environmental DNA and RNA metabarcoding, researchers find the most effective strategy is to briefly incubate collected organisms in water then analyse the enriched eDNA.
🔗 doi.org/10.3897/mbmg...
🔗 doi.org/10.3897/mbmg...
August 29, 2025 at 8:51 AM
By comparing three strategies for local bioassessments in streams using environmental DNA and RNA metabarcoding, researchers find the most effective strategy is to briefly incubate collected organisms in water then analyse the enriched eDNA.
🔗 doi.org/10.3897/mbmg...
🔗 doi.org/10.3897/mbmg...
Reposted by Florian Leese
Check out this new article on null model selection for multiple stressor research. Fantastic work by Iris Pimentel from @leeselab.bsky.social within the @crc-resist.bsky.social.
Freely available at: dx.doi.org/10.1002/ece3...
Freely available at: dx.doi.org/10.1002/ece3...
August 12, 2025 at 3:45 PM
Check out this new article on null model selection for multiple stressor research. Fantastic work by Iris Pimentel from @leeselab.bsky.social within the @crc-resist.bsky.social.
Freely available at: dx.doi.org/10.1002/ece3...
Freely available at: dx.doi.org/10.1002/ece3...
Reposted by Florian Leese
Wahl zum Wissensbuch des Jahres 2025
Ich freue mich sehr, dass unser Buch „Von Angesicht zu Angesicht“ dabei ist!
Ihr könnt uns sowie unsere Arbeit, mit der wir für biologische Vielfalt begeistern, mit eurer Stimme in der Kategorie „Ästhetik“ unterstützen: www.konradin-service.de/umfrage/inde...
Ich freue mich sehr, dass unser Buch „Von Angesicht zu Angesicht“ dabei ist!
Ihr könnt uns sowie unsere Arbeit, mit der wir für biologische Vielfalt begeistern, mit eurer Stimme in der Kategorie „Ästhetik“ unterstützen: www.konradin-service.de/umfrage/inde...
July 19, 2025 at 11:21 AM
Wahl zum Wissensbuch des Jahres 2025
Ich freue mich sehr, dass unser Buch „Von Angesicht zu Angesicht“ dabei ist!
Ihr könnt uns sowie unsere Arbeit, mit der wir für biologische Vielfalt begeistern, mit eurer Stimme in der Kategorie „Ästhetik“ unterstützen: www.konradin-service.de/umfrage/inde...
Ich freue mich sehr, dass unser Buch „Von Angesicht zu Angesicht“ dabei ist!
Ihr könnt uns sowie unsere Arbeit, mit der wir für biologische Vielfalt begeistern, mit eurer Stimme in der Kategorie „Ästhetik“ unterstützen: www.konradin-service.de/umfrage/inde...
It’s happening again! Our @crc-resist.bsky.social team from @unidue.bsky.social is in Hesse to prepare the next large #ExStream experiment. Stay tuned.
#freshwater #biodiversity #multiplestressors
#freshwater #biodiversity #multiplestressors
July 24, 2025 at 7:09 AM
It’s happening again! Our @crc-resist.bsky.social team from @unidue.bsky.social is in Hesse to prepare the next large #ExStream experiment. Stay tuned.
#freshwater #biodiversity #multiplestressors
#freshwater #biodiversity #multiplestressors
And it’s a wrap! Thx to all participants - and the instructor colleagues, and the fantastic @physaliacourses.bsky.social team. How good you bring people together through organizing these courses. ☀️🙏
🚀 A big thank you to all participants and instructors of our eDNA Metabarcoding course! 🙌
We explored amazing user-friendly tools like BolDigger, Aspcale, and TaxonTable, had a great intro to @nanoporetech.com data, and wrapped up with an inspiring open discussion full of ideas and projects.
We explored amazing user-friendly tools like BolDigger, Aspcale, and TaxonTable, had a great intro to @nanoporetech.com data, and wrapped up with an inspiring open discussion full of ideas and projects.
July 18, 2025 at 5:22 PM
And it’s a wrap! Thx to all participants - and the instructor colleagues, and the fantastic @physaliacourses.bsky.social team. How good you bring people together through organizing these courses. ☀️🙏
Reposted by Florian Leese
We’re happy to announce Dr. Lennard Stach!! 🥳🥳 Well done Lennard for a brilliant defense and thesis!! We will miss you!
Finally, thank you @leeselab.bsky.social for sitting in the thesis committee! 🫶
Finally, thank you @leeselab.bsky.social for sitting in the thesis committee! 🫶
July 16, 2025 at 2:48 PM
We’re happy to announce Dr. Lennard Stach!! 🥳🥳 Well done Lennard for a brilliant defense and thesis!! We will miss you!
Finally, thank you @leeselab.bsky.social for sitting in the thesis committee! 🫶
Finally, thank you @leeselab.bsky.social for sitting in the thesis committee! 🫶
Reposted by Florian Leese
🎉 We’re thrilled to kick off the Eukaryotic "eDNA" Metabarcoding workshop with @leeselab.bsky.social @dominikbuchner.bsky.social , @tillmacher.bsky.social , @shump.bsky.social & an amazing group of participants joining us from across the globe—from Australia to Peru, from USA & Canada to Europe! 🌍🧬💻
July 14, 2025 at 12:49 PM
🎉 We’re thrilled to kick off the Eukaryotic "eDNA" Metabarcoding workshop with @leeselab.bsky.social @dominikbuchner.bsky.social , @tillmacher.bsky.social , @shump.bsky.social & an amazing group of participants joining us from across the globe—from Australia to Peru, from USA & Canada to Europe! 🌍🧬💻
Our team @unidue.bsky.social turned 🔟 today & I found myself in a spontaneous celebration event.
Really happy & grateful to work here with such a great bunch of talented & nice people - connected to our collaborators around the 🌎. Life could be worse. Weiter geht‘s. ☀️Maybe more lab work next 🔟 ?
Really happy & grateful to work here with such a great bunch of talented & nice people - connected to our collaborators around the 🌎. Life could be worse. Weiter geht‘s. ☀️Maybe more lab work next 🔟 ?
July 1, 2025 at 7:54 PM
Our team @unidue.bsky.social turned 🔟 today & I found myself in a spontaneous celebration event.
Really happy & grateful to work here with such a great bunch of talented & nice people - connected to our collaborators around the 🌎. Life could be worse. Weiter geht‘s. ☀️Maybe more lab work next 🔟 ?
Really happy & grateful to work here with such a great bunch of talented & nice people - connected to our collaborators around the 🌎. Life could be worse. Weiter geht‘s. ☀️Maybe more lab work next 🔟 ?
Very good to see our @pensoft.net journal @mbmg.pensoft.net continues to receive good CiteScores and also now the first #ImpactFactor with a good value of 3.1 ☀️
While I personally don’t care much about these metrics I know they are really relevant for many institutions. Thus: very happy about this!
While I personally don’t care much about these metrics I know they are really relevant for many institutions. Thus: very happy about this!
June 28, 2025 at 1:50 PM
Very good to see our @pensoft.net journal @mbmg.pensoft.net continues to receive good CiteScores and also now the first #ImpactFactor with a good value of 3.1 ☀️
While I personally don’t care much about these metrics I know they are really relevant for many institutions. Thus: very happy about this!
While I personally don’t care much about these metrics I know they are really relevant for many institutions. Thus: very happy about this!
🙏 And just as an addition: don‘t use these primers for bulk sample metabarcoding. There others are ways better (we recommend fwhF2/fwhR2n as a good solution; further solutions like BF2/BR3 or mlCOI with dgHCO exist)
Take a deep dive into this article by @leeselab.bsky.social focusing on new primers for #eDNA metabarcoding, proving that they significantly boost detection of benthic invertebrates in freshwater.
Targeting the right sequences can overcome nontarget amplification
👉 bit.ly/4dC2rlT
#science #water
Targeting the right sequences can overcome nontarget amplification
👉 bit.ly/4dC2rlT
#science #water
Improved freshwater macroinvertebrate detection from environmental DNA through minimized nontarget amplification
Capturing benthic invertebrate biodiversity from environmental DNA (eDNA) isolated from water is difficult because of abundant nontarget taxa PCR amplification. A new primer combination maximizes tar...
bit.ly
June 27, 2025 at 12:03 PM
🙏 And just as an addition: don‘t use these primers for bulk sample metabarcoding. There others are ways better (we recommend fwhF2/fwhR2n as a good solution; further solutions like BF2/BR3 or mlCOI with dgHCO exist)
Immer ein Highlight: die #DGL Jahrestagung. 2025 laden wir zu einer Special Session ein: „Genetischen Verfahren im biologischen Gewässermonitoring“ 🧬 👉 auf 🇩🇪&🇬🇧
Kommt vorbei, meldet euch an: www.dgl-jahrestagungen.de/phone/index....
#Vortrag #Poster #Tagung #Limnologie #omics #eDNA #Monitoring
Kommt vorbei, meldet euch an: www.dgl-jahrestagungen.de/phone/index....
#Vortrag #Poster #Tagung #Limnologie #omics #eDNA #Monitoring
June 10, 2025 at 3:35 PM
Immer ein Highlight: die #DGL Jahrestagung. 2025 laden wir zu einer Special Session ein: „Genetischen Verfahren im biologischen Gewässermonitoring“ 🧬 👉 auf 🇩🇪&🇬🇧
Kommt vorbei, meldet euch an: www.dgl-jahrestagungen.de/phone/index....
#Vortrag #Poster #Tagung #Limnologie #omics #eDNA #Monitoring
Kommt vorbei, meldet euch an: www.dgl-jahrestagungen.de/phone/index....
#Vortrag #Poster #Tagung #Limnologie #omics #eDNA #Monitoring
Reposted by Florian Leese
Join us for the Eukaryotic Metabarcoding course w/ @leeselab.bsky.social @dominikbuchner.bsky.social
shorturl.at/wRW4T Till & @shump.bsky.social
Get hands-on experience analysing Illumina & @nanoporetech.com data & learn how to run metabarcoding pipelines from raw sequences to ecological insights
shorturl.at/wRW4T Till & @shump.bsky.social
Get hands-on experience analysing Illumina & @nanoporetech.com data & learn how to run metabarcoding pipelines from raw sequences to ecological insights
Eukaryotic metabarcoding
14-18 July 2025 To foster international participation, this course will be held online
www.physalia-courses.org
May 28, 2025 at 3:37 PM
Join us for the Eukaryotic Metabarcoding course w/ @leeselab.bsky.social @dominikbuchner.bsky.social
shorturl.at/wRW4T Till & @shump.bsky.social
Get hands-on experience analysing Illumina & @nanoporetech.com data & learn how to run metabarcoding pipelines from raw sequences to ecological insights
shorturl.at/wRW4T Till & @shump.bsky.social
Get hands-on experience analysing Illumina & @nanoporetech.com data & learn how to run metabarcoding pipelines from raw sequences to ecological insights
Reposted by Florian Leese
Contributors include: @florianaltermatt.bsky.social, @rosiecblackman.bsky.social, @francoiskeck.bsky.social,
@lorihandley.bsky.social,
@leeselab.bsky.social
@lorihandley.bsky.social,
@leeselab.bsky.social
Bluesky
b.bsky.social
May 20, 2025 at 3:19 PM
Reposted by Florian Leese
In our May issue: Perspective led by Florian Altermatt discussing how to bring aquatic eDNA collection and data management in line with the Kunming-Montreal Global #Biodiversity Framework. 🧪🌎
Web link: go.nature.com/4mv2h4W
Readcube: rdcu.be/eh0uC
Web link: go.nature.com/4mv2h4W
Readcube: rdcu.be/eh0uC
Utilizing aquatic environmental DNA to address global biodiversity targets - Nature Reviews Biodiversity
Aquatic eDNA-based technologies offer the potential for universal and standardized biodiversity monitoring. In this Perspective, Altermatt et al. discuss how these technologies can help to achiev...
go.nature.com
May 20, 2025 at 3:16 PM
In our May issue: Perspective led by Florian Altermatt discussing how to bring aquatic eDNA collection and data management in line with the Kunming-Montreal Global #Biodiversity Framework. 🧪🌎
Web link: go.nature.com/4mv2h4W
Readcube: rdcu.be/eh0uC
Web link: go.nature.com/4mv2h4W
Readcube: rdcu.be/eh0uC
Reposted by Florian Leese
It has been a collective effort with a great contributions by Isabel Blasco-Costa, Alejandro Trujillo González & @leeselab.bsky.social. It is also related to our activities within the IMPACT project! Make sure to follow @impact-parasites.bsky.social and check out all other fascinating chapters! 🤩
May 20, 2025 at 7:48 AM
It has been a collective effort with a great contributions by Isabel Blasco-Costa, Alejandro Trujillo González & @leeselab.bsky.social. It is also related to our activities within the IMPACT project! Make sure to follow @impact-parasites.bsky.social and check out all other fascinating chapters! 🤩
Reposted by Florian Leese
🌍 Europe is facing an exceptionally dry spring in 2025: 37 out of 38 countries covered by the @EEA have been hit by drought.
To help track this growing threat, we’ve launched a new interactive drought map 🗺️— updated monthly & based on near real-time data: water.europa.eu/freshwater/e...
To help track this growing threat, we’ve launched a new interactive drought map 🗺️— updated monthly & based on near real-time data: water.europa.eu/freshwater/e...
May 13, 2025 at 7:29 AM
🌍 Europe is facing an exceptionally dry spring in 2025: 37 out of 38 countries covered by the @EEA have been hit by drought.
To help track this growing threat, we’ve launched a new interactive drought map 🗺️— updated monthly & based on near real-time data: water.europa.eu/freshwater/e...
To help track this growing threat, we’ve launched a new interactive drought map 🗺️— updated monthly & based on near real-time data: water.europa.eu/freshwater/e...
Reposted by Florian Leese
Great News: Our book Aquatic Parasitology: Ecological and Environmental Concepts and Implications of Marine and Freshwater Parasites has been published online open access! link.springer.com/book/10.1007... @nicojsmit.bsky.social @unidue.bsky.social
Aquatic Parasitology: Ecological and Environmental Concepts and Implications of Marine and Freshwater Parasites
A unique open access collection on ecological and environmental parasitology in marine and freshwater. Covers climate change and parasite conservation.
link.springer.com
May 16, 2025 at 1:01 PM
Great News: Our book Aquatic Parasitology: Ecological and Environmental Concepts and Implications of Marine and Freshwater Parasites has been published online open access! link.springer.com/book/10.1007... @nicojsmit.bsky.social @unidue.bsky.social
Reposted by Florian Leese
🌊🧬Revolutionizing Biodiversity Monitoring?🧪
Could aquatic #eDNA be a game-changer for tracking biodiversity loss? From detecting invasive species to restoring ecosystems...🌍
Study by Altermatt, F., Couton, M., Carraro, L. et al.: www.nature.com/articles/s44...
Could aquatic #eDNA be a game-changer for tracking biodiversity loss? From detecting invasive species to restoring ecosystems...🌍
Study by Altermatt, F., Couton, M., Carraro, L. et al.: www.nature.com/articles/s44...
Utilizing aquatic environmental DNA to address global biodiversity targets - Nature Reviews Biodiversity
Aquatic eDNA-based technologies offer the potential for universal and standardized biodiversity monitoring. In this Perspective, Altermatt et al. discuss how these technologies can help to achiev...
www.nature.com
May 9, 2025 at 1:40 PM