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Kai (he/him) 🍉

@kaiwalton.bsky.social
1.4K followers 530 following 94 posts

MS candidate in the Bronson Lab at Cal Poly Humboldt. Larval fish taxonomist & aspiring ichthyologist. Huge hagfish enjoyer 🐟 All views my own. 🏳️‍⚧️ 🏳️‍🌈 sites.google.com/view/larvalfishguy…

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Reposted by Kai (he/him) 🍉
Stacey Ogden 🦔 @labogden.bsky.social · 17/09/2026
Link to the related Nat Geo story. www.nationalgeographic.com/animals/arti...
nationalgeographic.com
Meet the First New Cat Species Discovered in 100 Years
A small, spotted tiger cat from Bolivia may just be the beginning of a wave of new small cat species.
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Prosanta Chakrabarty @prosanta.bsky.social · 15/09/2026
Another big potential #FishJob Curator of Fishes (or Mammals, but let it be ichthyology) at the American Museum of Natural History careers.amnh.org/postings/4925
careers.amnh.org
Assistant Curator/Assistant Professor, Vertebrate Zoology
The Division of Vertebrate Zoology at the American Museum of Natural History (AMNH) seeks an outstanding tenure-track Assistant Curator/Assistant Professor in either the Department of Ichthyology or M...
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JL Weissman @jlw-ecoevo.bsky.social · 10/09/2026
My lab is hiring two(!) postdocs interested in (1) building trait prediction models capable of resolving complex microbial traits from genomes and metagenomes, and/or (2) building mathematical models of microbial community dynamics www.microbialgamut.com/mGAMUT_postd...
microbialgamut.com
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Fredrik Jutfelt 🐠 @jutfelt.bsky.social · 24/08/2026
Come join us, PhD and postdoc positions! Please spread! Supervisor @patricepottier.bsky.social (patricepottierlab.com), me as co-supervisor. Impacts of climate change on different life-stages in fish.🐟🧪 PhD web103.reachmee.com/ext/I005/103... Postdoc web103.reachmee.com/ext/I005/103...
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Prosanta Chakrabarty @prosanta.bsky.social · 29/07/2026
From collections to conservation: the indispensable role of natural history museums The IUCN Species Survival Commission has published a Position Statement on the vital role of biological collections in biodiversity conservation iucn.org/news/202607/...
iucn.org
From collections to conservation: the indispensable role of natural history museums
The IUCN Species Survival Commission has published a Position Statement on the vital role of biological collections in biodiversity conservation: a formal acknowledgement that natural history museums,...
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Dr. Elizabeth Santos @lizmillermacroevo.bsky.social · 18/05/2026
I am recruiting Ph.D. students this cycle. Students interested in deep-sea fishes and phylogenetic comparative methods are an especially good fit.
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 28/07/2026
So fortunate to have given a talk on some of my master's thesis work at #JMIH2026 this year! I had a blast in NOLA, and it made for a great first JMIH :)
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Yung En Chee @yungenchee.bsky.social · 31/03/2026
On this Trans Day of Visibility, please enjoy & learn something from this fascinating & clarifying read from @madeline-eppley.bsky.social, @andylee.bsky.social, Robert Dellinger & @allydefduf.bsky.social Read👉 onlinelibrary.wiley.com/doi/full/10.... (🙏 for this excellent work & actionable recs!)
Screenshot of the title page of an article in Ecology Letters

TITLE: There is No Consensus on Biological Sex

Madeline G. Eppley. A, Andy Lee Robert Dellinger, Ally Swank

First published: 05 March 2026 | https://doi.org/10.1111/ele.70350

Editor: Greg F. Grether
Madeline Eppley and Andy Lee contributed equally and are co-first authors.

ABSTRACT

There is ongoing scientific and societal discourse on the definition of biological sex. At this critical moment when misinformation about sex is being applied to policy globally, scientific clarification is valuable. Here, we evaluate the primary approaches to defining sex and synthesise the active discourse to conclude that there is no current consensus on a definition of sex that is free of assumptions and limitations. While there is no current consensus, we do not advocate for a single definition and contend that a lack of unanimity is not inherently problematic. No matter what definitional choices are used, we provide actionable recommendations to improve accuracy when describing sex. Most importantly, regardless of scientific debates, no biological definition of sex should be used to dictate human rights.
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 14/03/2026
Any tips on making the jump from ecology to more molecular/evo-devo focused fields? Hoping to switch to the latter for a PhD, but it's hard knowing I lack a lot of the practical experience other applicants will have
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 14/03/2026
Any tips on making the jump from ecology to more molecular/evo-devo focused fields? Hoping to switch to the latter for a PhD, but it's hard knowing I lack a lot of the practical experience other applicants will have
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Alan Rogers @alanrogers.bsky.social · 27/11/2025
I taught (and co-taught) a course on human population genetics from 2000-2024. Having retired, I'm now making all the course materials public: github.com/alanrogers/p... #popgen #evbio
github.com
GitHub - alanrogers/popgen: A course on population genetics
A course on population genetics. Contribute to alanrogers/popgen development by creating an account on GitHub.
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Alissa Azar @alissaazar.bsky.social · 08/01/2026
Border Patrol has shot two people in Oregon close to Portland. The shooting occurred near East Burnside and 141st Avenue. The two who were shot allegedly drove to this location for further help and are now en route or at hospital. Their condition is unknown.
Blocked off complex with caution tape and cop cars
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 08/01/2026
Anyone know of any job boards for international (non-US) ichthyology, marine bio, or research jobs? Definitely interested in going abroad with recent news
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Kelly @broadwaybabyto.bsky.social · 08/01/2026
A Black man named Keith Porter was shot and killed by an ICE officer on New Year’s Eve. Marimar Martinez was shot five times by an ICE officer in Chicago who went on to brag about leaving seven holes in her body. This is not new but it is expanding.
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Stars and Stripes @starsandstripes.bsky.social · 08/01/2026
An Immigration and Customs Enforcement officer shot and killed a Minneapolis driver. Minnesota Gov. Tim Walz said he’s prepared to deploy the National Guard if necessary in case of unrest.
stripes.com
ICE officer kills a Minneapolis driver in a deadly start to Trump’s latest immigration operation
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Jennifer Ouellette @jenlucpiquant.bsky.social · 06/01/2026
300,000 Wondrous Nature Illustrations Put Online by The Biodiversity Heritage Library www.openculture.com/2026/01/3000...
openculture.com
300,000 Wondrous Nature Illustrations Put Online by The Biodiversity Heritage Library
Are we truly in the midst of a human-caused sixth mass extinction, an era of “biological annihilation”?
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Erin Reed @erininthemorning.com · 06/01/2026
1. Did you know that Girl Scouts has, for a long time, accepted trans girls and nonbinary scouts? Trans kids are under attack. Every year, I make a thread of trans and nonbinary girl scouts you can get your cookies from. Lets get our cookies from them this year in solidarity!
erininthemorning.com
2026 Trans Girl Scouts To Order Cookies From!
This year, consider ordering your Girl Scout cookies from a trans girl scout to make their day!
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Walker Bragman @walkerbragman.bsky.social · 05/01/2026
NEW from Important Context: Genocide experts, including two past presidents of the International Association of Genocide Scholars, are speaking out about escalating attacks on transgender Americans in the U.S. www.importantcontext.news/p/experts-wa...
importantcontext.news
Experts Warn U.S. in Early Stages of Genocide Against Trans Americans
Genocide scholars say policies targeting transgender Americans match early warning signs of mass atrocity.
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Dr Dorota SK @drdorotask.bsky.social · 06/01/2026
Finally out! We studied the retinas of the longest-living vertebrate, the Greenland shark, and found that the retinas remain remarkably healthy in animals around 150 years old. What is the mechanism? It may be a highly efficient DNA repair system. Enjoy! www.nature.com/articles/s41...
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Stella Sacco @antlervel.vet · 03/01/2026
I‘m discontinuing my social media use for the foreseeable future and I want to explain why. I woke up in the new year to discover that some guy on here had saved photos I took on New Year’s Eve and used Grok to remove my clothes. I know this because he showed me.
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Cameron Thrash @jcamthrash.bsky.social · 24/12/2025
Deep metatranscriptomic sequencing data of wastewater from Los Angeles, USA, 2023–2024 www.nature.com/articles/s41... #jcampubs
nature.com
Deep metatranscriptomic sequencing data of wastewater from Los Angeles, USA, 2023–2024 - Scientific Data
Scientific Data - Deep metatranscriptomic sequencing data of wastewater from Los Angeles, USA, 2023–2024
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Ed Cunningham-Oakes @edcoakes.bsky.social · 16/12/2025
We are recruiting for a number of PhDs in the HPRU in Public Health Genomics, based at @unibirmingham.bsky.social, in collaboration with UKHSA. 🦠🧬 Apply below to work on cutting-edge science and public health priorities! (NB deadline of 9th January / UK only due to funding restrictions) (1/7)
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Trevor A. Branch @trevorabranch.bsky.social · 16/12/2025
This could be your dream job: working full time at the Friday Harbor Labs on marine invertebrate organismal biology. Nine month salary from an endowment, teaching and research faculty position. apply.interfolio.com/178804
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Sebastian Höhna @hoehna.bsky.social · 27/11/2025
Deadline soon (end of Nov) for this PhD position in evolutionary genomics/bioinformatics in my group.
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Shaun Killen @shaunkillen.bsky.social · 25/11/2025
🧵1/9 There are 35,000+ fish species, but we have formal social-behaviour classifications for a tiny fraction. Most knowledge lives in the experience of researchers, fishers, divers, aquarists, naturalists, and Indigenous communities, but almost none of it is centralised. So we built ShoalBase.org.
shoalbase.org
ShoalBase | Join, Explore, Contribute Now
ShoalBase offers a global database on fish social behaviour, supporting research, conservation, and ecology through community contributions and visual data mapping.
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Kristina Killgrove @killgrove.bsky.social · 26/11/2025
NEW from me - NSF cancels grant scheme for social science research. Seems the NSF quietly archived ALL calls for DDRIG grants in the SBE directorate. This is a massive blow for PhD students wanting to do cutting-edge social science research. 🏺🧪
livescience.com
Today's biggest science news: Doomed comet explodes | Comet 3I/ATLAS course alteration | Dark matter detected?
Wednesday, Nov. 26, 2025: Your daily feed of the biggest discoveries and breakthroughs making headlines.
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Maggi Brisbin @margaretbrisbin.bsky.social · 26/11/2025
Also @hannahgreich.bsky.social shared this great resource with me for anyone else on the hunt: docs.google.com/spreadsheets...
docs.google.com
Ecology/Evolution/Marine Biology labs recruiting for Fall 2026 (Responses)
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PaleoJim @paleojim.bsky.social · 24/11/2025
Foot in door! NPS paleontology seasonal positions! www.usajobs.gov/job/85081670... @societyofvertpaleo.bsky.social
usajobs.gov
USAJOBS connects job seekers with federal jobs across the United States and around the world as the official employment site for the federal government
These positions may be filled for a six month seasonal period, but can vary due to weather conditions, project needs, or funding. Anticipated Entry on Duty: <strong>April-May 2026</strong> <p>For more...
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Yoshiaki KAI @yoshiakikai.bsky.social · 24/11/2025
共著論文が出ました。イブシクラノセナメハダカ。長いな。Stemonosudis fumea, a new barracudina (Aulopiformes: Paralepididae) from Japan, with taxonomic comments on the Stemonosudis rothschildi species complex link.springer.com/article/10.1...
link.springer.com
Stemonosudis fumea, a new barracudina (Aulopiformes: Paralepididae) from Japan, with taxonomic comments on the Stemonosudis rothschildi species complex - Ichthyological Research
A new barracudina, Stemonosudis fumea, is described on the basis of 12 specimens [78.7–235.2 mm in standard length (SL)], collected from Japan and adjacent waters. This new species belongs to the Stem...
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James Petruzzi @hawaiianimages.bsky.social · 19/11/2025
Way too much politics on my timeline right now, deploying weird marine life image. :) Here's up close and personal with an unusually cooperative Flying gurnard (Dactylopterus volitans). Night dive, Ulua Beach Maui. 🌿📷🐟🦑
Close up on the head and front half of a Flying gurnard, a truly unusual fish that creeps across the sand bottom using specially modified fins. It has very large eyes that show refractive irridescence from my strobe, and is sort of polka-dotted in reds, browns and blues
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 18/11/2024
Happy LGBT in STEM day! I'm Kai (he/him), I'm a fish biologist & a MSc student with Dr. Bronson at Cal Poly Humboldt. I study larval fish taxonomy & diversity, & am interested in natural history and fish anatomy. I'm trans & strive to create more welcoming scientific spaces for LGBT folks! 🐠🐡🐟
A photo of Kai standing in front of his research poster at a conference. The poster is titled "How does propeller size and effort impact multi-jet propulsion in colonial salps?" Kai is wear a black shirt and smiling at the camera.
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Anne-Marie W. Clark 👩‍👧‍👦🐶⚖️😷🌎🚢📚🌦️⚜️ @amwclark.bsky.social · 11/11/2025
DHS/ICE sneaking to set up outpost on Oregon central coast Sounds like DHS is quietly trying to take over the Coast Guard air facilities south of Newport. They've already moved the rescue helicopter 100 miles south, to North Bend (near Coos Bay), which is not good for future rescues near Newport.
opb.org
Newport officials raise alarm about possible new ICE facility
Rumors have spread since last week that the Trump administration is planning an outpost on Oregon's central coast.
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Fabien Burki @fburki.bsky.social · 12/11/2025
It is a collaboration between my lab (Uppsala U) and the labs of @dudinlab.bsky.social (Geneva U) and @filiphusnik.bsky.social (OIST). More info and how to apply here: uu.varbi.com/en/what:job/.... (The use of AI for writing the motivation letter is discouraged and will be regarded unfavourably) 2/2
uu.varbi.com
PhD student in systematic biology
The Department of Organismal Biology teaches and explores the evolution, development and function on the organismal level. For more information see Department of Organismal Biology - Uppsala Universit
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Yoshiaki KAI @yoshiakikai.bsky.social · 11/11/2025
Chenさんの研究室のAnthiadidae論文。すごい。A 40-year taxonomic enigma: multigene phylogeny resolves the polyphyly of Plectranthias (Perciformes: Anthiadidae) and supports a revised taxonomy academic.oup.com/zoolinnean/a...
academic.oup.com
A 40-year taxonomic enigma: multigene phylogeny resolves the polyphyly of Plectranthias (Perciformes: Anthiadidae) and supports a revised taxonomy
Abstract. Anthiadidae, a family of shallow and deep-water reef-associated fishes, include about 250 species distributed widely from tropical to temperate r
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Dr. Brendan Anderson @fossilsndcoffee.bsky.social · 11/11/2025
For anyone who can live in Flordia, a great opportunity in an amazing collection: FMNH is looking for an experienced full-time Collections Manager II or III as Director of Invertebrate Paleontology Collections within the Department of Natural History. 🧪⚒️🦑 explore.jobs.ufl.edu/en-us/job/53...
explore.jobs.ufl.edu
University of Florida - Details - FLMNH Collections Manager II / FLMNH Collections Manager III
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Aylwyn Scally @aylwyn-scally.bsky.social · 11/11/2025
Come and join us here in Cambridge! Applications open for a new faculty position, for a researcher in computational and/or theoretical biology, based jointly in Genetics and Mathematics. Happy to answer questions about research, teaching and working here. www.cam.ac.uk/jobs/faculty...
cam.ac.uk
Faculty Position in Computational Biology
Applications are invited for an Assistant/ Associate Professorship in Computational Biology to commence on 1 April 2026 or shortly thereafter. This is a joint post between the Department of Applied
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Fudge Lab @fudgelab.bsky.social · 10/11/2025
The Fudge Lab at Chapman University is recruiting a postdoc for an NSF-funded project on the biophysics of hagfish defensive slime deployment. Please repost! Apply here: tinyurl.com/4p937dn5
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 10/11/2025
November field work done! Crazy to think that I only have 2 more sampling trips left 😅
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Andy Lee, PhD @andylee.bsky.social · 09/11/2025
i’m defending my phd in a couple weeks!!!! lmk if you’d like an invite/link
Flyer for Andy’s defense. The title is: “Evolution in a changing ocean: genetic adaptation, phenotypic plasticity, and range expansion in the face of high gene flow”

The talk is on Friday 11/21 at noon Eastern. There is a zoom link available. 

The flyer has a whelk in the middle with ray’s coming from behind it.
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 09/11/2025
This year we have sold 31% of the advent calendars that we sold last year 😓 The art is so pretty and colorful 🥺 The facts are so good 🥺 Eels are so cool 🥺 Get an eel facts advent calendar at EelFacts.net
Sarah holds up an eel facts advent calendar in front of blooming flowers on her sidewalk. It says eel facts an advent calendar. It has 24 boxes with orange and yellow zigzags and yellow circles in the middle with numbers one through 24 in the middle of the boxes there are six eels depicted on this calendar, one green Moray, two splendid garden eels, one blue and yellow ribbon eel, and one American eel and one European.
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Chris Gug @gugunderwater.bsky.social · 08/11/2025
While I don’t think anyone has made a specific designation between “larval” and “adult”, in the moorish idol, I’m going to label this one “post-larval” #moorishidol #blackwater #blackwaterdiving #blackwaterphotography #kumejima #okinawa #chrisgug #gug #gugunderwater
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Celeste Labedz @celestelabedz.bsky.social · 07/11/2025
In case anyone is wondering if Watson was really THAT bad, @lpachter.bsky.social compiled a list of quotes that are absolutely not for the faint of heart. liorpachter.wordpress.com/2018/05/18/j...
liorpachter.wordpress.com
James Watson in his own words
“Some anti-Semitism is justified” “Whenever you interview fat people, you feel bad, because you know you’re not going to hire them” “Japan should be bombed for d…
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Dr. Rene P. Martin @lampichthys.bsky.social · 07/11/2025
We are getting some beautiful autumn weather here in NE. This season always evokes a sense of things coming to pass and a year coming to an end. Thus, the #SundayFishSketch #Fishytheme for this weekend is "lifecycles." Sketch a fish lifecycle, can be as simple or complex as you want! #sciart 🦑
media.tenor.com
a close up of a bunch of eggs with a national geographic logo on the bottom
ALT: a close up of a bunch of eggs with a national geographic logo on the bottom
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 07/11/2025
Today! Tune in at 3pm PST :)
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Rachel Germain @gerlame.bsky.social · 03/11/2025
Applications are currently being accepted for UBC's ✨️ Biodiversity Postdoctoral Fellowship ✨️ (two positions!!), due Jan. 15 Please share far and wide 🚀 (See thread)
biodiversity.ubc.ca
Postdoctoral Fellowship Opportunities
Biodiversity Postdoctoral Fellowship, 2-year (2026-2028) - 2 positions OPENAt UBC, we believe that attracting and sustaining a diverse workforce is key to the successful pursuit of excellence in resea...
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Carl T. Bergstrom @carlbergstrom.com · 06/11/2025
"Criminals posing as US immigration officers have carried out robberies, kidnappings, and sexual assaults in several states" according to an FBI bulletin. Which, of course, gives ICE cover to commit the same crimes. "It wasn't us, it was different thugs, dressing up as us."
wired.com
FBI Warns of Criminals Posing as ICE, Urges Agents to ID Themselves
In a bulletin to law enforcement agencies, the FBI said criminal impersonators are exploiting ICE’s image and urged nationwide coordination to distinguish real operations from fakes.
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not your mom @mrscrabapple.bsky.social · 05/11/2025
heads up to anyone who holds trans kids near: amy harmon from the nyt is searching for and having a hard time finding people to interview to find out exactly what trans kids are doing when their care is limited or cut off, and for purposes of community safety, please shut the fuck up around her.
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Kai (he/him) 🍉 @kaiwalton.bsky.social · 05/11/2025
My wonderful labmate Nicole is defending her thesis this Friday! She studied the nasal morphology of wild and hatchery O. mykiss, and did some amazing work :) Tune in if you can! Zoom info below 🐟
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Amanda Daria Stoltz, PhD @sciencebarbie.bsky.social · 05/11/2025
GUYS! IT'S FINALLY HERE! My first dissertation chapter has been published in Climatic Change!!! We read 194 papers on environmental justice on the coast and our findings are free for the public 🌊🌎🧪 link.springer.com/article/10.1...
link.springer.com
No coastal justice without environmental justice: a systematic literature review of climate and coasts - Climatic Change
As the ocean warms, sea levels rise, and coastlines change, there has been a growing interest in environmental justice and climate justice on the coast. Here we conduct a systematic literature review ...
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