Malte Willmes

California: A Salmon Society? By Carson Jeffres Consider for a moment the identity of the Pacific Northwest as a Salmon Society.  When you fly into an airport in the Pacific Northwest, salmon are on the floors and wal…

Interesting article by my colleague Carson Jeffres californiawaterblog.com/2025/10/05/c...

ICES Workshop on emerging methods and technologies for the automated analysis of calcified structures #WKETAC invites experts in fish biology, stock assessment & computational technologies.
📅 2–3 October 2025
📌 Boulogne-sur-mer, France - and online
ℹ️https://ices.dk/community/groups/Pages/WKETAC.aspx

IsoArcH Addithon 2025 This form is used to sign up for the IsoArcH Addithon to be run from 11-20 August 2025.

IsoArcH is organizing its first Addithon, a 10-day virtual community event! This event will bring volunteers together from all over the world, to add to this ever-growing open data repository for isotopes from archaeological research.

bit.ly/IsoArcH2025

Our bioavailable strontium baseline for Corsica is out! ⁸⁷Sr/⁸⁶Sr ranges from 0.7075 to 0.7169 and was established from 245 plant & soil leachate samples from 125 sites.

Check out the article here lnkd.in/e6pDJFCY
and the dataset can be downloaded from the IsoArcH database here lnkd.in/eFNS5Xbw

a canva graphic that says "How it works Step 1: Go to SkypeAScientist.com Step 2: Click “Sign Up” then “Scientist Sign Up Form” Step 3: Tell us about yourself Step 4: Get matched with a classroom Step 5: Connect with the teacher Step 6: Make a kid’s day isn't that great? @SkypeAScientist"

Scientists!

@skypeascientist.bsky.social matches scientists with classrooms, libraries, & more for virtual Q&As! It's easy and fun!

We are looking for 750 more volunteers by 8/15

If you're down to chat with 1-5 classrooms this semester, sign up here
www.skypeascientist.com/sign-up.html

Learning from fish: the importance of nonprofits’ research projects Nonprofits’ research projects on fish serve multiple purposes. They serve an impetus to improve restoration efforts and manage hatcheries better. They make a case for reintroducing species in areas…

Great news article highlighting our work on the Guadalupe River in California. Really gratefull to all the volunteers collecting samples and caring about fish. calsport.org/learning-fro...

Indigenous youth prepare for the first descent down the Klamath River after dam removal On Thursday, dozens of young kayakers from a variety of Indigenous tribes will embark on the first source-to-sea descent of the Klamath River since the country’s largest dam removal project was comple...

A piece of good news: www.opb.org/article/2025...

Trap catching upstream migrating salmonids in Vestre Jakobselv, Norway

Adult male pink salmon

This year, traps will be installed in 63 Norwegian rivers to remove pink salmon before they are able to spawn. New publication assessing these extraordinary measures, based on experiences two years ago: reabic.net/journals/mbi/2025/2/MBI_2025_Thorstad_etal.pdf @ninanatureresearch.bsky.social

🐦 Early bird reminder! 🚨

The deadline for early bird registration for the #ICESASC25 is fast approaching!

✨ Secure your spot while early bird rates are still available!

📝 Register today to join us in Klaipėda on 15-18 September: bit.ly/4ldurjP

and here the link to the (open access) paper: esajournals.onlinelibrary.wiley.com/doi/10.1002/...

Build it, and they will come: Early evidence for establishment of Chinook salmon in Putah Creek, CA By Lauren G. Hitt, Malte Willmes, Mackenzie C. Miner, Max Stevenson, Carson A. Jeffres, Robert A. Lusardi, Nann A. Fangue, and Andrew L. Rypel Figure 1. Putah Creek during salmon spawning seas…

Blogpost about our work tracking the establishment of Chinook salmon in a restored watershed. Lead Lauren Hitt did an amazing job combining field observations and otoliths! californiawaterblog.com/2025/06/29/b...

Statement on Federal Public Lands Transfer, Sale, and Exchange - American Fisheries Society American Fisheries Society ● American Fly Fishing Trade Association ● Angler Action Foundation ● Archery Trade Association ● Backcountry Hunters & Anglers

AFS joined other science, conservation, and outdoor organizations in a "Statement on Federal Public Lands Transfer, Sale, and Exchange." The current Senate budget reconciliation bill requires federal agencies to sell 2-3 million acres in 11 western states. Read more: fisheries.org/2025/06/stat...

Excited to be back working with sturgeon finrays from California. Trying to estimate age 🔬 isnt easy but these high quality and beautiful images sure help!

Concession areas for different types of renewable energy projects

New article on land use efficiency of renewable energy in Norway. Production density (GWh/km2) was highest for small hydropower and low for land-based wind. Storage hydropower needed to balance wind power at 0.2/1.0 TWh. Led by M.S. Kenawi with collaborators at NTNU and NINA. doi.org/10.1016/j.re...

Change is afoot, but not always how you expect Biodiversity is changing all the time, but not necessarily in headline catching ways

We tend to think about catastrophic things when we think of biodiversity change, like the extinction of a species. But biodiversity change can be much more insidious than this. A lot of important changes go unnoticed. But these can be precursors to much more problematic changes.

Dive in for more 👇

Most animals have their own version of tree rings – here’s how we biologists use them to help species thrive From whale earwax to bird feathers, almost all organisms keep a record of their existence.

#ThingsWithRings! Read this new @uk.theconversation.com article about some of the surprising biological archives out there, and what we can use them for... theconversation.com/most-animals...

#otoliths #archaeology, #forensics #fish #sclerochronology #biochronology @universityofessex.bsky.social

Was out this week in the Alviso Marsh to collect Longfin Smelt for UC Davis culture program. Weather was waaaaay too nice for January.

Here’s how a tiny fish became Trump’s favorite weapon in his crusade against California The functionally extinct delta smelt entered national politics in 2009, when Sean Hannity made it a symbol of environmentalism gone wrong.

www.sacbee.com/news/politic...

Hot off the press: A fitness-based indicator for the effect of aquaculture-produced salmon lice on wild sea trout. doi.org/10.1093/ices... @ninanatureresearch.bsky.social

Work with us? Postdoc position in Arctic coastal carbon cycling at NINA’s Department for Arctic Ecology in Tromsø nina-english.attract.reachmee.com/jobs/65-post...

International Conference on Fish Telemetry (7th ICFT) Fourwaves - International Conference on Fish Telemetry (7th ICFT)

Are you a fish telemetry practitioner? The 7th International Conference on Fish Telemetry will take place June 8-13, 2025 in Traverse City, Michigan, USA. The conference website is now live for abstract submission and details on the venue. Help spread the word. event.fourwaves.com/7thicft/pages

That was one of my favorite spots during my phd fieldwork. Such an interesting chapel and geology!

Stuck on an R problem so decided to go for a longer dog walk. R problem is still there but the view of the fjord was beautiful.

You are saying thats not what a Davis turkey looks like?

source and code: github.com/MalteWillmes...

a turkey drawn in ggplot

Happy Thanksgiving everyone. Found this in an old is.R() Blogpost.
#rstats #turkey #ggplot

Sea Grant is accepting applications for NOAA Fisheries-Sea Grant
Graduate fellowships in population and ecosystem dynamics & marine resource economics. Deadline = Jan. 23. Applicant guides at lnkd.in/dyggpSR9

Schematic diagram showing branches of the aquatic tree of life with biomineralised tissues that could be exploited for their chemical life history information

New paper from @louisehosking.bsky.social @zoedoubleday.bsky.social et al reviewing the wealth of chemical information in less-frequently analysed biomineralized tissues from aquatic taxa. If you're bored of otoliths, bivalves, and corals... tinyurl.com/v8p8nxk4. #sclerochronology #marinelife
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Haha jokes on them i dont feel anything anymore. oh wait.