Julian Olden
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oldenfish.bsky.social
Julian Olden
@oldenfish.bsky.social
1.9K followers 870 following 64 posts

Professor @ UW | ecologist | freshwater | consumer of flat whites & craft 🍺 | gentle 🐟 squeezer | 🇨🇦 | EiC Water Biology and Biosecurity | AE @ESA Frontiers and Eco Apps | www.oldenfish.com | Views are my own ✊

Videos
Environmental science 73%
Geography 18%
Posts Replies Media Videos

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · 7d
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/...

Reposted by Julian D. Olden

profchrisharrod.bsky.social
Chris Harrod @profchrisharrod.bsky.social · 11d
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/...
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'...
besjournals.onlinelibrary.wiley.com

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · 16d
A huge congrats Tim!

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · 29d
I enjoyed your talk Miguel. It was early for me (6:30 am), but it was well worth it!

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Nov 25
Nah ... I end up buying caps on eBay. I mostly use uncrimped caps (i.e., before they are used).

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Nov 24
Late night, but there is no better feeling that having stable isotope samples all prepped! ⚛️🎉

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Nov 24
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

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Nov 21
Sunrise from UW SAFS @uwsafs.bsky.social. Not a bad way to start the day! ☀️

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Nov 13
Thanks Corey!

Reposted by Julie L. Lockwood

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Nov 13
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...
www.reabic.net

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Oct 6
The current website of the US Department of Agriculture. What a nightmare.

Reposted by Julie L. Lockwood, Trevor A. Branch

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 28
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
fieldnotes-uw.bsky.social FieldNotes @fieldnotes-uw.bsky.social · Sep 28
FieldNotes (fieldnotesjournal.org) is a student-run undergraduate journal and digital storytelling platform at @uwenvironment.bsky.social. We have focused on highlighting undergraduate research and publishing through-provoking articles about gnarly environmental issues since 2018. Please follow.
FIELDNOTES
fieldnotesjournal.org

Reposted by Julian D. Olden

fieldnotes-uw.bsky.social
FieldNotes @fieldnotes-uw.bsky.social · Sep 28
FieldNotes (fieldnotesjournal.org) is a student-run undergraduate journal and digital storytelling platform at @uwenvironment.bsky.social. We have focused on highlighting undergraduate research and publishing through-provoking articles about gnarly environmental issues since 2018. Please follow.
FIELDNOTES
fieldnotesjournal.org

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 23
Interesting! I'm on my reading list for the week.

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
Absolutely ... and very much our message! Thanks for your comment.

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
Funding: CESAB programme of @frbiodiv.bsky.social. Great list of co-authors and fun working group! @uwsafs.bsky.social @uwfreshwater.bsky.social @profchrisharrod.bsky.social @profchrisharrod.bsky.social

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
Importantly, we continue to believe that morphological traits hold VALUE in depicting habitat use, ecological diversity & offering insight into fish movement! But our results do raise concerns of whether such traits are ‘functional’ in that they are a reasonable proxy of a species' trophic ecology.

Reposted by Joaquín Hortal

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
The growing enthusiasm for trait-based ecology, particularly approaches grounded in morphological traits, is increasingly shaping science. However, we caution that this enthusiasm should not overlook the limitations of morphological traits as a meaningful lens or currency for functional inference.

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
This study leveraged a comprehensive database of stable isotope values for fish communities worldwide. doi.org/10.1051/kmae.... And yes, stable isotopes have limitations ... isotopic vs. trophic niches. We cover all of this in our paper!
IsoFresh: A global stable isotope database of freshwater food webs | Knowledge and Management of Aquatic Ecosystems
Knowledge and management of aquatic ecosystems (formerly Bulletin Français de la Pèche et de la Pisciculture), an international journal on freshwater ecosystem
doi.org

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
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.

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
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.

Reposted by Joaquín Hortal

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 19
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

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 10
Agree, we all definitely need this type of encouraging feedback! :)

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 7
Absolutely! I'm experiencing the same thing as AE for a few journals. Authors are getting frustrated with me (I feel awful), and often, the additional burden shifts to me to provide a second review. 😒

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Sep 3
Congrats!

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Aug 29
Really important science and message - thank you Miguel!

oldenfish.bsky.social
Julian Olden @oldenfish.bsky.social · Aug 26
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!

Reposted by Julian D. Olden

jjopperman.bsky.social
Jeff Opperman @jjopperman.bsky.social · May 1
A poll of 30,000 people in 31 countries found that the public places very high value on water and prioritizes protecting water quality, lakes and rivers - and their priority actions are somewhat different than what companies generally focus on...
www.forbes.com/sites/jeffop...
The Public Values Water But Sees Challenges Differently Than Companies
A set of polls—including more than 30,000 people across 31 countries—found that the public sees water as a top priority, with an emphasis on water quality.
www.forbes.com

Reposted by Julian D. Olden

lizneeley.bsky.social
Liz Neeley @lizneeley.bsky.social · May 13
“The NSF can be understood not only as a catalyst of scientific promise for national purpose, but also as a guarded response to fears about centralized control over knowledge and thought, shaped by the dark shadows of the Third Reich and the emerging Red Scare.”
alondra.bsky.social Alondra Nelson @alondra.bsky.social · May 13
"For me, the answer now lies in refusal, the withdrawal of participation from systems that require dishonesty as the price of belonging."

Today I am resigning from the National Science Board and the Library of Congress Scholars Council.

I wrote about my decision in TIME.

time.com/7285045/resi...
Why I’m Resigning from the NSF and Library of Congress
I cannot participate in systems that require dishonesty as the price of belonging.
time.com