Chris Martinez

Postdoctoral Researcher All Job Postings will close at 12:01a.m. CST (1:01a.m. EST) on the specified Closing Date (if designated). If you close the browser or exit your application prior to submitting, the application progre...

Fun news: I'm hiring a postdoc in ichthyology!

Please spread the word #TeamFish, and message me if you have questions.

(Job requisition id is R00107333 if LSU link below takes you elsewhere.)

lsu.wd1.myworkdayjobs.com/en-US/LSU/de...

I wrote my first blog about why I felt that writing about my family's experiences with the mass deportation of people of Mexican descent during the Great Depression was more important than the National Science Foundation grant I was writing last summer. communities.springernature.com/posts/i-m-a-...

Congrats, Armita! That’s great news!!

Ecological interactions and genomic innovation fueled the evolution of ray-finned fish endothermy Cetacean interactions, body size, and genomic innovations shaped endothermy evolution in ray-finned fishes in the Eocene-Miocene.

Evolution of endothermy in marine fishes is related to competition with cetaceans. This incredible paper is a masterpiece of phylogenetic comparative methods and a future classic for marine biologists

www.science.org/doi/10.1126/...

I am pleased to announce The Macroevolution Lab at Ohio State opens this August! We will be housed in the Museum of Biological Diversity 🐟🐠🐡

Evolutionary lability of a key innovation spurs rapid diversification - Nature A study shows that the rapid diversification of cichlids in African lakes is driven by their ability to evolve between having simple or complex teeth.

1/10 *** New paper out *** (on behalf of Nick Peoples who is not on Bluesky). I am beyond excited to present our new paper out now in @Nature! Here, we show that rapid gain and loss of tooth complexity accelerates diversification in fishes! www.nature.com/articles/s41...

Just your odd mix of Indian and Malagasy cichlids. Reminds me of the line in Pirates of the Caribbean “the world is still the same, there is just less in it” tilapia have nearly replaced all Malagasy cichlids in it’s native home

The elongate tail of a ray

What is the function of the elongate tail in elasmobranch #rays? A 🧵 and a new hypothesis. A paper with @juliachaumel.bsky.social in @royalsociety.org Proceedings B (shorturl.at/PmfYD) shows that the tail of cownose rays (and a few other species studied so far) has an elaborate lateral line.

Iris growing tendrils that meet in the middle, forming an upper and lower pupil. Note the shadow of lower pupil reflected in the water. There is a dark band of melanin pigmentation at the water line across the iris tendrils as well with shades of green in the skin around the eye.

Two four-eyed fish swimming side by side. They are positively buoyant - floating with just their eyes and tips of their snouts above the water like adorable crocodiles.

I just need to share these photos of our four-eyed fish #Anableps anableps I took yesterday in our fish room.
15/10 one of the best fishes 😍
🧪🐟 #MarineLife

We are studying vision in these fish as a component of my Ichthyology undergraduate research ( #CURE ) course IB177LF.

It was close to that size!

Pac-Man looking Bathophilus brevis

Came across this glorious Pac-Man impersonator, Bathophilus brevis, while measuring fishes at the Scripps collection with @lizmillermacroevo.bsky.social. It just decided that all it needed in life was a huge mouth and a tail 😂

Kevin never disappoints with the clearing and staining!

This time with tags! #fish #teamfish #phd #ecology

Very cool! @frable.bsky.social agrees that it’s a juvenile fangtooth. Didn’t recognize it without the fangs!

Maybe a juvenile melamphaid?

Awesome haul!! Do you know what the little two-horned fish is? It’s got some familiar traits, but I can’t quite put my finger on it!

Reduced evolutionary constraint accompanies ongoing radiation in deep-sea anglerfishes - Nature Ecology & Evolution Based on phylogenomic and geometric morphometric analyses of 132 anglerfish species, the authors infer a Cretaceous origin of the clade and show that bathypelagic anglerfish are undergoing rapid pheno...

Our big collaboration on anglerfish diversity is out today in @natureecoevo.bsky.social. THREAD PART 1

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

Super proud of my 2nd PhD paper exploring shifts in evo. integration among reef fish fins with expansions in locomotor modes, out now in Evolution. Within modes there is much diversity in fin shape and weak connections between form and function. doi.org/10.1093/evol...

Party lights/decorations, a crazy straw, and Tony Hawk…quite the combination!

🚨Postdoc openings in the Martin Fish Speciation Lab 🚨@MVZ @UCBerkeley !
evol.mcmaster.ca/brian/evoldir/…
Genomics or EvoDevo or Genetics🔀Phenotype🔀Performance🔀Fitness.
Lots of possibilities ranging from CRISPR-Cas9 to scale-biting performance! NIH and NSF-funded.
Please email me if interested! 🐟🐶

A wall lizard from Andros island, Greece.

Stellagama stellio (starred agama) from Naxos island, Greece.

Lacerta trilineata caught in ancient village on Andros island, Greece.

I'm a new Asst. Prof & Curator of Herpetology at San Diego State www.kinseybrock.com

I'm recruiting 2 PhD students & 1 MS student to study effects of urbanization on genetic & phenotypic variation in herps. Study systems in the Greek islands, Italy, and southern CA. Great weather, great herps! ☀️🦎🌴

If any of those fish are yours and you have the heads to spare, I’d be more than happy to take them off of your hands!!

Batoids generally turn out great. It’s that flat body plan!

Auburn University is #hiring a #physiologist! The position is to conduct basic research and teach physiology related classes (1 class per semester) Applications from folks working on aquatic organisms are welcome.
www.auemployment.com/postings/40833

My department (Kalamazoo College in MI) is looking for tenure-track invertebrate biologist! What you'll find here: a close-knit, supportive group of colleagues, dedicated and passionate students, research support, and more*
📣 Please spread the word 📣
biology.kzoo.edu/tenure-track...

It was really cool, although the 3 second exposure on my phone is doing some heavy lifting here!

Some late night bioluminescence at Huntington Beach

Can’t wait for you to join the lab!!