Society for Developmental Biology Ethel Browne Harvey Postdoctoral Seminar Series Friday, April 10, 2026, 3:00pm - 4:00 pm Eastern Time Joaquín Navajas Acedo (Biozentrum at the University of Basel) Spatiotemporal emergence of somatosensory neuron diversity in zebrafish Yiqun Wang (University of California, San Diego) Asymmetric mRNA partition mediated embryonic patterning in spiralian development revealed by spatial transcriptomics

The next the Ethel Browne Harvey Postdoc Seminar will be held Friday, April 10 at 3 pm Eastern Time with Joaquín Navajas Acedo @mads100tist.bsky.social @biozentrum.unibas.ch and Yiqun Wang @ucsandiego.bsky.social. Register today and join us. bit.ly/42xUhYh #SDBPostdocSeminar

Logo for the upcoming Zebrafish Disease Models 19 (ZDM19) conference in Oxford, UK. There are two silhouettes of fish that are swimming (one grey and one blue).

Registration & Abstract submissions are now open for #ZDM19 in Oxford 🤩 Please share with your colleagues!

📅When: 28th-30th September, 2026
🌍Where: Mathematics Institute at University of Oxford, UK

Find more details (including deadlines) at the official conference website: www.zdmsociety.org/zdm19

Text reads 'Avoiding Red-Blind LUTs: High frequency of Protanopia among general population" On the left a figure using a Red/Grey LUTs as it appears for people with normal vision. On the right a figure as seen by people with Protanopia.

Want to make your images/videos more inclusive? Avoid Red-Blind LUTs! 🫷 While single-color red images are accessible, multi-color LUTs with red can be confusing for a small proportion of the population with Protanopia. I'll give a quick example from a paper I covered in journal club. 1/2

🐟 Fish

🐠🐠 Fish

🐟🐠🐡 Fishes

🦑🦀🦪 Also, somehow, Fish

🦈 Gristle Fish

🦫 Fish (Lent)

🐝 Fish (California)

Check this out! Latest collaborative work from my and Mark Fishman's labs - led by Roy Harpaz, with help from Pedro Piquet and Yasuko Isoe (@yasukoisoe.bsky.social)

Now published in Molecular Metabolism, improved by the helpful reviewers! We hope to continue to leverage the #zebrafish to understand the neurometabolic and hormonal regulation of appetite and beyond!

Read the full article here: www.sciencedirect.com/science/arti...

Here's a six-month time-lapse of me building the single objective light sheet fluorescence microscope at the UCSF Center for Advanced Light Microscopy!

Also pictured is @nicostuurman.bsky.social and @kahsage.bsky.social.

#snouty

🚨Very happy that my PhD work is now out in @nature.com!

We discovered that evolution, by acting in the midbrain, shifted the threshold to escape in Peromyscus mice, to fine-tune defensive strategies in different environments

www.nature.com/articles/s41...

This was a truly collaborative effort! 🧵⬇️

Thanks for everything that you did over the years. Forever grateful :)

Congratulations bro! :)

“We suggest that zebrafish phototaxis is regulated via parallel processing streams, which could be a universal implementation to change strategies depending on developmental stage, context, or internal state, making behavior flexible and goal-oriented.”

New work from @zwitscherarmin.bsky.social 🐟

DaniocellDesktop logo, depicting a fish on a laptop screen.

If you love Daniocell, but wish it could generate analyses specific to YOUR genes & cell types of interest, check out DaniocellDesktop - a new point-and-click app for Mac and Windows that enables reanalysis of the Daniocell data without programming: daniocell.nichd.nih.gov/desktop/ (1/4)

ICYMI #zebrafish folks:

Fresh from ‪@lascholz.bsky.social‬ and Conrad Lee, we offer 4 models pre-trained with diverse fps and resolutions. Leandro’s done all of the clicking. Benefit from his suffering and plug straight into automated annotation of your videos!‬

www.biorxiv.org/content/10.1...

A connectomic resource for neural cataloguing and circuit dissection of the larval zebrafish brain www.biorxiv.org/content/10.1101/2025.06....

Ventral view of a two-headed zebrafish stained with a dye that marks collagen. You can see the developed structure of the jaw and head.

Alcian blue staining of cartilage in a two-headed zebrafish embryo. Credit to @jakeleyhr.bsky.social. #ZebrafishZunday 🧪

Norepinephrine changes behavioral state through astroglial purinergic signaling Both neurons and glia communicate through diffusible neuromodulators; however, how neuron-glial interactions in such neuromodulatory networks influence circuit computation and behavior is unclear. Dur...

Beautiful

lol

Dorsal view of a five days post fertilization zebrafish larva that has been stained with acetylated alpha tubulin. Color coded for depth. Anterior to left.

Nervous system of a five-day-old zebrafish larva. Credit to Dr. Nathan Martin of @plavickilab.bsky.social. #ZebrafishZunday 🧪

Picture of Dr. Joaquin Navajas Acedo wearing a stripey shirt and sunglasses

Image of Prof. Teresa Bowman Credit to Albert Einstein SOM

#DanioDigest (February 2025)

‪Dr. Joaquin Navajas Acedo @mads100tist.bsky.social‬ wins the SDB Trainee Science Communication Award.

Prof. Teresa Bowman receives inaugural Dr. Fernando Macian-Juan Award for Excellence in Graduate Student Mentoring at Albert Einstein College of Medicine. (1/39)

Switching fields and/or wanting to become an expert in #zebrafish research?
The @mblscience.bsky.social 2025 Zebrafish Development & Genetics course offers a fantastic opportunity to learn from leaders in the field!

(New & final) Application deadline: March 28
www.mbl.edu/education/ad...

microscope image of a postnatal mouse brain showing the entry point of blood vessel into the brain - fibroblasts (yellow: S100a6) form a layer at the brain's edge (meninges) and surround the blood vessel. Astrocyte endfeet (magenta, GFAP) form a layer at the brain's edge, apposed to the fibroblasts. Image also shows macrophages (cyan; CD206) and cell nuclei (DAPI, blue)

I was imaging this weekend, took this image because it was beautiful to me, the blood vessels, fibroblasts, astrocytes, & macrophages as steadfast guardians at the brain's edges. Cheers to the 'guardians' of all that is important. ❤️

Version 2 of our machine learning morphometric app is now out! Go try it on your organisms. github.com/HenHus/Husmo...

With everything that's going on, I needed this cool data 1 day before #flourescencefriday. It's my first time with #GCaMP imaging (green), and you can clearly see Aβ42 induced hyperexcitability at the same time that we also see BBB leakage (not shown)! #zebrafishrock

Banner for the 19th International Zebrafish Conference in Madison, USA. There is the International Zebrafish Society logo next to a stately building with orange flowers in front of it, in Madison.

Registration for the 19th International Zebrafish Conference is now open! Taking place in Madison, Wisconsin, USA from July 9-13. It will be the place to be for 2025 😎 Don't miss out!

For more info, visit the conference website: www.izfs.org/education/19...

#IZFC2025 #zebrafish #ZebrafishMeeting

Beautiful

#sox10 and neural crest development in #zebrafish embryo—a beautiful movie from Takamiya et al.

#FluorescenceFriday is a banger collab from Hannah Moran (@chrmosimann.bsky.social) and Raeden Gray (@thelovelylab.bsky.social). SPIM image of a triple labeled zfish embryo. Sox17-green, sox10-magenta, pitx2-blue. Much more to come!!!