Fredrik Jutfelt 🐠

Thank you!

Awesome, thanks

nice. With the old idtracker or the new idtracker ai?

Thanks! I haven’t tried this one but it looks good.

Ideally yes on the individuals, but no on pose or parts.

What's the best free software for behavioural tracking?
(videos of several fish in a shared arena)

Toxtrac?
Tractor?
Trex?
idTracker ai?
Detect+Track?
AnimalTracker?
Other?

Please help 🙏

Near complete local extinction of iconic anemonefish and their anemone hosts following a heat stress event - npj Biodiversity npj Biodiversity - Near complete local extinction of iconic anemonefish and their anemone hosts following a heat stress event

www.nature.com/articles/s44...

I spend most of my time on research and I try to keep the teaching load down. But WOW, it is so inspiring when you meet students like this! Teaching ethics and robust open science practices to the new MSc cohort has been treat.

Yes!

Yes, many of them are the same fish!

Actually, @elisabethbik.bsky.social already posted this on pubpeer and there is an expression of concern for the paper:
pubpeer.com/publications...

I think it's the same individual, just two consecutive photos?

Yes. And that's not all...

Notice anything fishy here?
#ImageForensics
🐟🧪
(Too easy for you @elisabethbik.bsky.social)

And here is young me moving in to that empty office 10 years ago. And starting the NTNU lab with Rachael and four aquaria.

Cleaned out my office at NTNU, exactly 10 years after moving in. Looking at the list of people who passed through the lab, so many great scientists and friends!

www.gu.se/en/research/...

Yes, I feel a little sentimental.

😂 so rude, poor mola
but a great video

YouTube video by Kurzgesagt – In a Nutshell The Dumbest Animal Alive

Hilarious and mostly accurate character assassination of the sunfish Mola mola 😂🐟🦑

youtu.be/gtDKKJq9u30?...

Check out our new review on how to measure thermal tolerance! 🐟🌡️🧪

I guess “observations per unit effort” is hard to calculate with the recent advance of ubiquitous video cameras

It would be great if we could analyse the occurrence of southern species statistically, and correlate with sea temperatures. Has this been done for Northern Europe?

New fish species keep popping up in Sweden, most likely because of ocean warming!

Today a large Mahi Mahi in Lysekil!
(Photo Janice Melander)

Incredibly nerdy paper, but should be useful I think.

This was a product of a pre-SEB writing retreat a bunch of had in Czechia last year.

If you have atleast 5 years of postdoctoral experience definitely consider applying!

#bioscifacjobs

Paper led by Graham Raby along with an awesome group of international collaborators! (#FINclub) @jutfelt.bsky.social

Measuring critical thermal maximum in aquatic ectotherms: A practical guide Critical thermal limits, commonly quantified as CTmax (maximum) or CTmin (minimum), are core metrics in the thermal biology of aquatic ectotherms. CTmax, in particular, has recently surged in popu...

Happy to see this out in @methodsinecoevol.bsky.social

Are you new to CTmax tests (or CTmin)? Are you experienced, but unsure on what to report in your Methods?🤔

Then this practical guide is for you! It even includes a fillable table! 😎

besjournals.onlinelibrary.wiley.com/doi/full/10....

Let’s play Toy or Owl

Not sure if they swim with tuna, maybe? But yes, plenty of mackerel and herring to eat. And warm surface water is the likely the key factor

Another video