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 · 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 · 07/04/2026

The EPT association with aerial insectivorous birds remained robust after accounting for riparian covariates describing the extent of urban, agricultural and canopy cover that may influence the magnitude and availability of emergent insect prey to foraging birds.

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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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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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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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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 · 06/10/2025

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

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

In a global test, we show that morphological traits show weak (ca. 10% var exp) associations with d13C & d15N for freshwater fish species. At the individual level, morphology explained 4% in isotopic variation within populations. Body size & jaw length explained some var, albeit not much.

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

Support of such claims depends on the fundamental, albeit often unspoken, assumption that morphological characteristics of fish, such as body size & shape, fin configuration, & the size & orientation of the mouth and eyes, serve as reliable indicators of their feeding strategies & prey preferences.

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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 · 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 · 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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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 · 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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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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Julian Olden @oldenfish.bsky.social · 22/12/2024

Nice one Solomon! One of my fondest projects was working with the Australian lungfish in the Mary River (2004!).

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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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Julian Olden @oldenfish.bsky.social · 05/10/2024

Global invasion and biosecurity risk from the online trade in ornamental crayfish - just out in ConBiology. We conducted the first global assessment of the online trade in and associated invasion risk of freshwater crayfishes. conbio.onlinelibrary.wiley.com/doi/10.1111/...

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Julian Olden @oldenfish.bsky.social · 16/02/2024

Hi folks. I'm eagerly awaiting re-connection with my science colleagues and friends. Let's do this!

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