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Ray C. Schmidt, PhD

@afrfreshh2o.bsky.social
99 followers 183 following 28 posts

Associate Professor at Randolph-Macon College focused on the discovery and conservation of African freshwater biodiversity.

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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 20h
Many thanks again for @whysharksmatter.bsky.social public seminar last night and his talk to our senior capstone course today at Randolph-Macon College. Very informative and engaging talks!
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Prosanta Chakrabarty @prosanta.bsky.social · 30/09/2026
Please share And FYI: Review of applications will begin 11/16/26 ...
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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 30/09/2026
Excited to welcome @whysharksmatter.bsky.social to the Center of the Universe!
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Professor Goose @thundergoose.bsky.social · 27/09/2026
Biology is AMAZING! This is a microscopic wasp. The wings have a distinct shape because at this size air resistance is different.
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 27/09/2026
If you’re in the Richmond, VA area, I’m giving a free public lecture on Thursday about my book #WhySharksMatter
rmc.edu
Why Sharks Matter: The Science and Policy of Saving Sharks (Lecture)
Join marine conservation scientist, author, and award-winning public science educator Dr. David Shiffman to learn all about these amazing animals.
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Joachim Mergeay @jmergeay.bsky.social · 18/09/2026
Silent but dramatic loss of genetic diversity unveiled using museum specimens #consgen
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 18/09/2026
Bad news for people who hate biodiversity and education, I am feeling inspired. Buy an advent calendar so I have funding to do biodiversity education projects when I get home. Scratch off a shell a day for facts about snails 😎 SquidFacts.net
Snail facts advent calendar with 4 shelled snails and 2 sea slugs and 1 sea angel and a banana slug with a bunch of scratch able shells
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Dr. Sarah Parcak @indyfromspace.bsky.social · 17/09/2026
WOW
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 16/09/2026
Save 30% with code HWSSM if you preorder my upcoming book on sustainable seafood soon! www.press.jhu.edu/books/title/...
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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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Rudolf Meier @rudolf-meier.bsky.social · 14/08/2026
Five years back in Berlin #6: DNA barcodes reveal species, but vouchers let us study them. This means that we have to be able to find and retrieve the right specimens among thousands. Our open workflow keeps vouchers safe, searchable & organized. Preprint: doi.org/10.64898/202...
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John P. Friel, Ph.D. @friel.bsky.social · 14/08/2026
Wake up babe! A new online resource for fish nerds just dropped. 🐟🧪 www.floridamuseum.ufl.edu/discover-fis...
floridamuseum.ufl.edu
Fish Families of the World Gallery
This searchable gallery includes entries for fish families of the world, which may include photographs of preserved specimens, reconstructed CT and photogrammetry 3D models, xrays, characteristics for...
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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 24/07/2026
www.richmonder.org/for-decades-...
richmonder.org
For decades, Richmond mandated tidy lawns. A new proposal would give native plants more leeway.
Setting the appropriate criteria has been a challenge for the city.
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Tom Near @tjnear.bsky.social · 08/07/2026
🧵 1/11New paper alert! One of two out today from #NearLab Ever heard of the Holiday Darter? These beautiful freshwater fish are hiding a big biodiversity secret in the rivers of Georgia, Alabama, & Tennessee and new genomic data is revealing it. A thread 👇
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Tom Near @tjnear.bsky.social · 18/05/2026
New species alert! 🐟 Meet Typhlichthys styx the Phantom Cavefish, a new amblyopsid cavefish from TN, AL & GA! Ancient aquifer geology drove allopatric speciation ~8 Ma ago! shorturl.at/XWwYv
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Brian Sidlauskas @briansidlauskas.bsky.social · 12/05/2026
The Smithsonian National Museum of Natural History is advertising for a Curator of Fishes! This is a dream job for an early career, doctoral-level systematic ichthyologist. If that's you, go apply (by June 2)! trustcareers.si.edu/en/postings/...
trustcareers.si.edu
Research Zoologist (Curator of Fishes), IS-0410-12
Job Opening: Research Zoologist (Curator of Fishes), IS-0410-12 at National Museum of Natural History in Washington, DC.
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Prosanta Chakrabarty @prosanta.bsky.social · 11/05/2026
Smithsonian Fish Curator position announcement! Note the application dates of May 12 – June 2, 2026. Should be posted here tomorrow: trustcareers.si.edu#js-careers-j...
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The Linnean Society of London @linneansociety.bsky.social · 29/04/2026
Our 2026 Linnean Medal winner for research, @mstiassny.bsky.social, has transformed understanding of fish evolution, from African rivers to the tree of life. Blending fieldwork and advanced imaging, she’s revealed blind species adapted to low-light environments and alarming declines in biodiversity.
Photograph of a person sat in front of a body of water, wearing a black shirt and holding a white dog.
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William B. Ludt, PhD @planet-of-fishes.bsky.social · 23/04/2026
Fish curator job posting in Stuttgart! www.naturkundemuseum-bw.de/en/jobs/deta...
naturkundemuseum-bw.de
Jobs | Staatliches Museum für Naturkunde Stuttgart
Open positions
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Jennifer Ouellette @jenlucpiquant.bsky.social · 09/04/2026
Rock‑Climbing Fish Scale a 50‑Foot Waterfall Using Tiny Hooks in Their Fins www.discovermagazine.com/rock-climbin...
discovermagazine.com
Rock‑Climbing Fish Scale a 50‑Foot Waterfall Using Tiny Hooks in Their Fins
Learn how fish in the Democratic Republic of the Congo scale a near-vertical waterfall using microscopic hooks.
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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 09/04/2026
Very cool sighting with my non-majors conservation biology class yesterday. Perfect timing as we were sampling macroinvertebrates at a local park.
Insect emerging from nymph stage
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Flingjore @flingjore.com · 07/04/2026
Shellear fish in the Democratic Republic of Congo scale 50-foot vertical waterfalls using pectoral fins equipped with hook-like structures. Researcher Pacifique Kiwele Mutambala confirms the migration, warning that local dam projects threaten the species’ unique aquatic pathways.
npr.org
These rock-climbing fish can shimmy up a 50-foot waterfall
Shellear fish have certain anatomical traits making it possible for them to climb as well as swim. Pacifique Kiwele Mutambala
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Maxwell Bernt @mjbernt.bsky.social · 05/04/2026
Pleased to share a new phylogeny for the airbreathing or walking catfishes from the family Clariidae - part of my postdoctoral work at the AMNH in collaboration with Tobit Liyandja and Melanie Stiassny: www.sciencedirect.com/science/arti...
Diagram depicting phylogenetic relationships among several elongated catfishes.
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Colton the fish squeezer🐟🪴📚🏕️🐝 @fishsqueezer.bsky.social · 04/04/2026
Tiny shellear fish in central Africa scale a 50-foot vertical waterfall using suction cups and tiny hooks. This convergent evolution places them with some island gobies and Brazilian bumblebee catfish, who all do world class bouldering. 🐟🌍 phys.org/news/2026-04...
phys.org
Tiny African fish caught climbing to the top of a 50-foot waterfall
For over half a century, people in Central Africa have told tales of the fish seen climbing waterfalls, but these claims have never been officially confirmed. Now, these fish have finally been caught ...
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John P. Sullivan @halooie1.bsky.social · 03/04/2026
New mormyrid alert! Gnathonemus marqueti is described from the Lufira basin of D.R. Congo and G. brevicaudatus is revalidated in this new article by Mukweze Mulelenu et al. in Zool. J. Linn. Soc. doi.org/10.1093/zool...
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Howard French @hofrench.bsky.social · 28/03/2026
Reading. www.wsj.com/world/africa...
wsj.com
How a Bill Gates-Backed Company Landed in a Fight Between Congo and Belgium
Antique maps and other geological archives are at the heart of an increasingly ugly showdown between Belgium’s colonial museum and the Democratic Republic of Congo.
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John P. Friel, Ph.D. @friel.bsky.social · 24/03/2026
Many freshwater fish populations are collapsing, according to the most comprehensive assessment to date by the UN’s Convention on the Conservation of Migratory Species, which found freshwater fish populations worldwide have crashed by about 81% since 1970.🐟🧪 www.theguardian.com/environment/...
theguardian.com
Epic river migrations of fish rapidly collapsing, UN report finds
Vast journeys, among world’s great wonders, found to be under threat as freshwater fish populations crash by 81%
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Brian Sidlauskas @briansidlauskas.bsky.social · 13/03/2026
Interested in joining my lab and the Tulane University Biodiversity Research Institute? Guillaume Rieucau (LUMCON) and I have incoming funding to support a masters student who will use imaging sonar and traditional sampling to study how fishes utilize artificial reefs in Lake Pontchartrain.
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The Society of Systematic Biologists @systbiol.bsky.social · 10/03/2026
10 days remaining to submit your Mini-ARTS award! These awards are for revisionary taxonomy and systematics. Up to $4,000 is available per award. For guidelines and to submit your application, see our website www.systbio.org/mini-arts-aw...
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Andrew Rambaut (🐏🎀) @arambaut.bsky.social · 28/02/2026
The first version of FigTree was released nearly 20 years ago and it is still widely used (including by me). But there are currently 85 issues on the GitHub repo (github.com/rambaut/figt...) and some of them I don’t really like the look of.
github.com
rambaut/figtree
Automatically exported from code.google.com/p/figtree - rambaut/figtree
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Amanda K. Pinion @akpinion.bsky.social · 27/02/2026
Just published: A very unusual fish, described here as a new genus and species of loach, and the first groundwater-dwelling fish reported from Northeast India. Meet 𝑮𝒊𝒕𝒄𝒉𝒂𝒌 𝒏𝒂𝒌𝒂𝒏𝒂! Open access article here: www.nature.com/articles/s41...
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John P. Friel, Ph.D. @friel.bsky.social · 20/02/2026
Based on available data for living species, there are 37,520 species of non-tetrapod fishes vs. 33,281 tetrapod species. 🤓 #TheMoreYouKnow Source for non-tetrapod fish species data: researcharchive.calacademy.org/research/ich... Source for tetrapod species data: zenodo.org/records/1053...
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John P. Friel, Ph.D. @friel.bsky.social · 09/01/2026
Bumping to the Fishes! and Science feeds🐟🧪
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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 05/01/2026
Open access note on the recent taxonomic changes in the mountain catfishes of Africa. mapress.com/zt/article/v...
mapress.com
A note on the recognition of genera Amphilius and Anoplopterus within mountain catfishes (Amphiliidae: Amphiliinae) of Africa | Zootaxa
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Derek Hennen, Ph.D. @derekhennen.bsky.social · 01/01/2026
To add: @andrewjohnston.bsky.social wrote a great blog post about his photo stacking system, which you can read here: www.insectid.org/post/focus-s.... It's more expensive, but you get better results! I'll be adding this link to my post, since I forgot earlier.
insectid.org
Focus-stacking photography: Building your own system
Ten years ago, Alex Wild published a guide in Scientific American on how to make your own focus-stacking system for under $6000. I can't seem to find that post any more, just some secondary posts with...
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Brian Sidlauskas @briansidlauskas.bsky.social · 27/12/2025
Great news article about the Tulane University Biodiversity Research Institute's Royal D. Suttkus Fish Collection and our recent accessions of specimens from the DEEPEND Consortium and the University of Louisiana at Monroe.
nola.com
There are 8 million fish in a World War II bunker outside New Orleans. More arrive soon.
Hidden in a World War II bunker near New Orleans, Tulane stores more than 8 million preserved fish — and the collection is still growing.
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Derek D. Houston @derekdhouston.bsky.social · 19/12/2025
The past few years I've given my students assignments to create Wikipedia pages on various topics. This semester's Fisheries Management students were assigned to write about an ichthyologist/fisheries manager that didn't have a page, with emphasis on women or POC encouraged. I'm sharing them here:
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Sam Price @evovert.bsky.social · 15/12/2025
🧪🐠 I am hiring a postdoc! Work will be on patterns of biodiversity across phylogenetic scales using teleost fishes as a model. Apply by end of Jan 2026 for full consideration apply.interfolio.com/179070 I encourage folks to reach out with any questions. Please Share!
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Dr. Elizabeth Santos @lizmillermacroevo.bsky.social · 12/12/2025
NEWS from Ohio State Fish Division: You can now search our 6,000-tissue collection on our website! 🐟 mbd.osu.edu/collections/...
mbd.osu.edu
Fish Division | Museum of Biological Diversity
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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 10/12/2025
mapress.com/zt/article/v... Excited to see this out. Started with RMC students in 2019 and mostly finished in the spring of 2020..... Worked & added over the years, but other projects pulled me away. Submitted it this summer! RMC funds allow for open access so take a look! Photo by M.C.W. Keijman.
mapress.com
Hidden diversity of the widespread Opsaridium ubangiense (Cypriniformes: Danionidae) in Central Africa | Zootaxa
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Joel Corush @jcorush.bsky.social · 04/12/2025
I'm recruiting a Ph.D. student for Fall 2026. Interested in comparative studies and trait evolution in fishes? Send me an email with a CV and research interests. Please take a look at my website (jcorush.github.io ) for more information about my research. #hybridization #minnows #mudskippers
jcorush.github.io
Corush Lab
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Katie O'Reilly @drkatfish.bsky.social · 05/12/2025
2 Fast, 2 Furiosus: The Carolina madtom’s species name “furiosus” is a reference to the sharp sting they can deliver to would-be predators + clumsy fish biologists. These bee-like stings come from the large spines on their pectoral fins that deliver a mild (but painful) venom #25DaysofFishmas
A diagram showing the Carolina madtom's sharp pectoral fin spines
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That Librarian: Amanda Jones @librarianjones.com · 24/11/2025
Step 1: Sign up for a FREE library card at your local library today. Step 2: Enter a world of possibilities. Step 3: Share some of the library joy that is sure to come.
media.tenor.com
fry from futurama says " and it 's all thanks to the books at my local library .. "
ALT: fry from futurama says " and it 's all thanks to the books at my local library .. "
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John P. Friel, Ph.D. @friel.bsky.social · 31/10/2025
Fellow fish nerds, I'm sharing a link to a free PDF of "The Handbook of Freshwater Fishes of West Asia". This new book provides a summary of the taxonomy, distribution, and biology of all freshwater fishes between the Bosphorus, Azerbaijan, Yemen, and Iran. 🐟 www.degruyterbrill.com/document/doi...
Cover and sample pages of a new book entitled "Handbook of Freshwater Fishes of West Asia" by Jörg Freyhof , Baran Yoğurtçuoğlu , Arash Jouladeh-Roudbar and Cüneyt Kaya.
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Rudolf Meier @rudolf-meier.bsky.social · 31/10/2025
Halloween News: Meet a new vampire fly (Hippoboscidae) 🧛‍♂🪰 1 of 10 species found on citizen-reported bird carcasses in Singapore: Even dead birds can have productive afterlives! See host records, annotated images, pictorial keys & DNA diagnostics here: doi.org/10.1155/jzs/...
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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 30/10/2025
Counting principal caudal-fin rays on some African mountain catfishes (Amphilius). 6 + 7 You guys aren't ready for this yet. But your kids are gonna love it
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Ray C. Schmidt, PhD @afrfreshh2o.bsky.social · 29/10/2025
Adding some relevant instructional images to my lab.
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John P. Friel, Ph.D. @friel.bsky.social · 13/10/2025
Bumping to the Fishes! and Science feeds🐟🧪
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Dr. Davey F. Wright ⛏️🦕🧬 @daveyfwright.bsky.social · 02/10/2025
🚨We're hiring! The Sam Noble Oklahoma Museum of Natural History is seeking a tenure-track split position as Assistant Curator of Ichthyology and Assistant Professor of Biological Sciences. Please retweet & share with colleagues! 🐟🐠🧪 Apply here: apply.interfolio.com/174674
A job ad with multiple images, including the exterior of the museum, a view of collections (jars on shelves), and pictures of some cool, tropical fish but I don't know enough about fish to describe them other than to say they're pretty colors of yellow and blue/green
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