iiinova — where your digital self keeps evolving

Julian Olden @oldenfish.bsky.social · 25/06/2026

The Society for Freshwater Science is pretty awesome. Here is how I recognize the greatest of this society and all its passionate members. Cheers 🍺 www.freshwater-science.org @freshwaterscience.bsky.social

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Julian Olden @oldenfish.bsky.social · 25/06/2026

Species bounty programs, like bounty hunters charged to bring fugitives to justice, enlist the public to capture unwanted species through financial incentives. Check out our paper in npjBiodiversity, where we review the eight-century-long practice. @natureportfolio.nature.com doi.org/10.1038/s441...

doi.org

Society’s struggle with unwanted species: what centuries of history reveal about species bounty programs - npj Biodiversity

npj Biodiversity - Society’s struggle with unwanted species: what centuries of history reveal about species bounty programs

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Julian Olden @oldenfish.bsky.social · 21/05/2026

A huge thanks to the many folks who made the LeRoy Poff career celebration such a wonderful event. Special thanks to Chris Funk, Dave Lytle and Deb Finn. @streambug.bsky.social @jdtonkin.bsky.social @freshwaterscience.bsky.social

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Julian Olden @oldenfish.bsky.social · 16/05/2026

Gearing up for another fantastic SFS annual meeting! Just finished the beer cap art for the student auction. I’m stoked about it! Revealed on Monday night or early here if this post gets 75 likes! @sfs-src.bsky.social @freshwaterscience.bsky.social

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Julian Olden @oldenfish.bsky.social · 29/04/2026

Wow, this is utterly insane and really sad for those of us dedicated to 100% human-generated science.

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Julian Olden @oldenfish.bsky.social · 25/02/2026

A piece we wrote for The Conversation that associated with our recent paper "Extreme events and river biodiversity under climate change" in Nature Reviews Biodiversity @jdtonkin.bsky.social @tdatry.bsky.social and others Read-only link: rdcu.be/e4Dkv doi.org/10.64628/AA....

doi.org

Extreme weather is transforming the world’s rivers. We need new ways to protect them

Rivers support billions of people but are among the least protected parts of nature. A major review shows what needs to be done as climate change accelerates.

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Julian Olden @oldenfish.bsky.social · 05/02/2026

Super happy to have @ulaskimarta.bsky.social joining us at @uwsafs.bsky.social! Looking forward to working together!

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Julian Olden @oldenfish.bsky.social · 05/02/2026

Mismatches between invasive species policy, which relies on administrative borders, and scientific research conducted at ecological units complicate regulation, risk assessment, and biosecurity. Here we explore some solutions. www.nature.com/articles/s44...

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FieldNotes @fieldnotes-uw.bsky.social · 16/01/2026

Welcome the editors for FieldNotes 2026! pt. 1 We're so excited to introduce the editors of our editorial team! Stay tuned for the remaining editors and other updates!

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Julian Olden @oldenfish.bsky.social · 26/01/2026

‪Another wonderful CESAB FOOD-WEBS working group meeting in Montpellier! Super productive and creative time together. Funding: @frbiodiv.bsky.social

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Jeff Opperman @jjopperman.bsky.social · 22/01/2026

River need greater protection, but to date our methods for tracking protection status have been limited. In this post I describe a new method from @oldenfish.bsky.social @americanrivers.bsky.social and Conservation Science Partners - the Protected River Index www.forbes.com/sites/jeffop...

forbes.com

Improving How We Track Progress For River Protection

Rivers have relatively less protection than do land or oceans and we lack effective mechanisms for measuring protection. A new study offers an improved mechanism for tracking progress.

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American Rivers @americanrivers.bsky.social · 10/01/2026

🗣️ MAJOR ANNOUNCEMENT: Over 80% of our nation’s 4.4M miles of rivers aren’t adequately protected! Our brand new peer-reviewed research with Conservation Science Partners published in Nature Sustainability shows just how vulnerable our rivers are. ➡️ Learn more: www.americanrivers.org/npra-explore...

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Julian Olden @oldenfish.bsky.social · 09/01/2026

National assessment of river protection in the U.S. Article: doi.org/10.1038/s418... Policy Brief: doi.org/10.1038/s418... Rivers Explorer: map.myriver.americanrivers.org Collaboration b/t American Rivers, Conservation Science Partners, Univ WA @americanrivers.bsky.social Thread 👇 | DM for PDF

Image of river protection status in the United States

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Chris Harrod @profchrisharrod.bsky.social · 15/12/2025

hot off the press! Led by the mighty Marie Perga, including many members of the Fooδ-webs team, and kindly funded by the Foundation for Research on Biodiversity/CESAB besjournals.onlinelibrary.wiley.com/doi/10.1111/...

besjournals.onlinelibrary.wiley.com

A global estimator of C and N isotope baselines for fresh waters

Baselines are the pebbles in the shoes of isotope ecologists. The extreme variability of the isotope composition of resources at the base of food webs governs the spatial differences of consumers'...

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Julian Olden @oldenfish.bsky.social · 19/12/2025

Unraveling multipredator impacts in salmon-bearing rivers using quantitative DNA metabarcoding. A wonderful collaboration with @jwinkfish.bsky.social. @uwsafs.bsky.social @uwenvironment.bsky.social @uwfreshwater.bsky.social 👇 esajournals.onlinelibrary.wiley.com/doi/10.1002/...

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Julian Olden @oldenfish.bsky.social · 24/11/2025

Late night, but there is no better feeling that having stable isotope samples all prepped! ⚛️🎉

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Julian Olden @oldenfish.bsky.social · 24/11/2025

Finally found some time to reconnect with my caps. Red swamp crayfish in all its glory. Adding it to my office wall! @newbelgium.bsky.social @pikebrewing.bsky.social

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Julian Olden @oldenfish.bsky.social · 21/11/2025

Sunrise from UW SAFS @uwsafs.bsky.social. Not a bad way to start the day! ☀️

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Julian Olden @oldenfish.bsky.social · 13/11/2025

Is Facebook fueling the online trade in aquatic invasive species? Survey of hobbyists indicates that over half engage in peer-to-peer organism exchange, transport across state lines & release them into the wild. AI Podcast: open.substack.com/pub/oldenfis.... Paper: www.reabic.net/journals/mbi...

reabic.net

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Julian Olden @oldenfish.bsky.social · 06/10/2025

The current website of the US Department of Agriculture. What a nightmare.

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Julian Olden @oldenfish.bsky.social · 28/09/2025

I've been proud to serve as the faculty leader for this effort. It has been a pleasure to interact with passionate students and emerging science communicators for many years now! We publish annually. I encourage you to check out past issues and follow! @uwsafs.bsky.social @trevorabranch.bsky.social

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Julian Olden @oldenfish.bsky.social · 19/09/2025

Fish ecologists routinely posit that functional trait analyses, founded either solely or in part on morphological traits, provide opportunities to guide global biodiversity conservation. Our paper just published in GEB sought to explore this claim. doi.org/10.1111/geb.... Read thread below.

doi.org

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Julian Olden @oldenfish.bsky.social · 27/08/2025

It was a real pleasure to participate in the Mazama Newt Workshop at Crater Lake hosted by the @oregonzoo.bsky.social and the National Park Service. Discussions focused on a recovery plan for the Mazama newt in light of an exploding invasive signal crayfish. Great to see @ericrlarson.bsky.social!

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Julian Olden @oldenfish.bsky.social · 06/07/2025

Just out: Few-shot transfer learning enables robust acoustic monitoring of wildlife communities at the landscape scale. Super great work by Gio Jacuzzi. doi.org/10.1016/j.ec.... Github release: zenodo.org/records/1569...

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Julian Olden @oldenfish.bsky.social · 26/06/2025

Wonderful to be able to spend some time at @iea-udg.bsky.social at @univgirona.bsky.social with my host and friend @garciaberthou.bsky.social. Looking forward to my seminar in a few hours!

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Julian Olden @oldenfish.bsky.social · 23/06/2025

A huge congrats to Dr. Diallo @jessdiallo.bsky.social! Many more great things lay ahead!

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Julian Olden @oldenfish.bsky.social · 14/06/2025

Another wonderful CESAB FOOD-WEBS working group meeting!. Such a wonderful and productive time (managed to submit 2 papers during the meeting) Special thanks to @profchrisharrod.bsky.social for hosting us at @sceneuog.bsky.social in Scotland! Funding: @frbiodiv.bsky.social

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Jessica Diallo @jessdiallo.bsky.social · 03/06/2025

The impact of invasive fishes lasts a lifetime - we found lifetime trophic shifts in native species using fish eye lens stable isotope analysis coupled with otolith growth measurements 🐟 👁️ 📈 Check out the new pub with @oldenfish.bsky.social esajournals.onlinelibrary.wiley.com/doi/10.1002/...

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Julian Olden @oldenfish.bsky.social · 15/05/2025

Management struggles to keep pace with invaders. With @jessdiallo.bsky.social and others we demonstrate the utility of removal models to help improve invasive removal programs & robustly evaluate the success of population suppression & eradication. esajournals.onlinelibrary.wiley.com/doi/10.1002/...

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Julian Olden @oldenfish.bsky.social · 09/05/2025

I miss this article last week in all the chaos - but it's well worth the read. Thanks @jjopperman.bsky.social for all you do!

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American Rivers @americanrivers.bsky.social · 16/04/2025

🔊 America’s Most Endangered Rivers® of 2025 report! From Alaska to New Jersey, whether threatened by drought, mining, or flooding, these 10 rivers all have one thing in common: they are all at a tipping point, facing an urgent decision in the coming months. Take action: mostendangeredrivers.org

Stunning aerial shot of Alaska's susitna river with a yellow plane flying over. Text overlayed reads "American Rivers", "America’s Most Endangered Rivers®", and "1. Mississippi River, 2. Tijuana River, 3. Rivers of Southern Appalachia, 4. Passaic River, 5. Rio Grande, 6. Rappahannock River, 7. Clearwater River Basin, 8. Susitna River, 9. Calcasieu River, 10. Gauley River"

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Julian Olden @oldenfish.bsky.social · 17/04/2025

Dear friends and colleagues! I'm looking for a riparian zone (area) spatial layer for 🇨🇦 Canada 🇨🇦 (or ind. provinces/territories). Something simple that has been delineated using a DEM and estimated flood height, for example. Image below is purely eye candy. Many thanks ... from a Canadian 🇨🇦

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Julian Olden @oldenfish.bsky.social · 26/03/2025

Just returning from the Texas A&M Ecological Integration Symposium (eeb.tamu.edu/eis/). Thanks to the student organizing committee and all the other invited speakers! I presented on the current protection status of American's rivers and threats to protections in the future. @tamu.bsky.social

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American Rivers @americanrivers.bsky.social · 03/03/2025

We can protect our nation’s freshwater species by: ✅ Removing Dams ✅ Restoring Damaged Rivers ✅ Protecting Healthy River Habitat Take the pledge to stand up for all wildlife that depends on rivers #WorldWildlifeDay act.americanrivers.org/page/80077/p...

act.americanrivers.org

Speak up for freshwater wildlife

Take the pledge to work to conserve our remaining natural areas to preserve nature and our fragile web of life.

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Julian Olden @oldenfish.bsky.social · 24/02/2025

A wonderful collaboration with friend Andre Padial and other Brazilian colleagues. We explored changes in biogeographic patterns in global fish diversity caused by the spread of non-native species, teasing apart the geographic and taxonomic drivers of change. neobiota.pensoft.net/article/1266...

neobiota.pensoft.net

Non-native species drive the global loss of freshwater fish beta-diversity

Freshwater ecosystems are facing mounting challenges. The widespread introduction of non-native species, for example, has resulted in the loss of native species and the substantial reconfiguration of ...

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Julian Olden @oldenfish.bsky.social · 16/01/2025

Invasion ecology is replete with a body of well-supported yet contradictory evidence for numerous invasion hypotheses, likely as a result of context dependency. Just published in DDI we explore the indirect effects & context dependencies in fish invasions. onlinelibrary.wiley.com/doi/10.1111/...

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Richard Mason @riccomason.bsky.social · 07/01/2025

We often think of rivers as linear features, but lateral dynamics are just as important and often overlooked! In our paper we present a framework for the study and management of rivers which emphasises lateral connectivity. #floodplainconnectivity #riverrestoration Link to paper shorturl.at/ri3lA

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Julian Olden @oldenfish.bsky.social · 21/12/2024

A wonderful holiday card from @clairevaage.bsky.social. It’s impossible not to get holiday cheer from an eastern mudminnow! With the added bonus of Olden Lab stickers!

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Julian Olden @oldenfish.bsky.social · 12/12/2024

New paper in @freshwaterscience.bsky.social reporting on the efficiency and effectiveness of an innovative new methodology called autonomous suction harvesting that controls aquatic invasive plant using a ROV instead of a diver . Paper <- dx.doi.org/10.1086/733211 or find at RG @uwsafs.bsky.social

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Julian Olden @oldenfish.bsky.social · 07/12/2024

People often ask me "what do you work on?". At the end of an exhausting day, I wish I could make stickers of this word cloud and just slap it on their shoulders! ;)

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Julian Olden @oldenfish.bsky.social · 04/12/2024

Our new study reports that over 13,000 human barriers fragment close to THREE-QUARTERS of all rivers in the Mekong River Basin. Paper is free to access here: doi.org/10.1016/j.rs....

Photos courtesy of International Rivers via Flickr.

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