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Kevin Stevens

@neohibolites.bsky.social

460 followers 580 following 390 posts

Cichlid enthusiast and paleontologist. https://www.researchgate.net/profile/Kevin-Stevens-2

www.researchgate.net

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Kevin Stevens @neohibolites.bsky.social · May 27

What do we know about the earliest history of cichlid fishes? Here’s an extended and updated English version of my article on the biogeography and early evolution of cichlids, which I originally published in German in 2020. 🐟 🧪 #cichlid #biogeography #paleontology
cichlidae.com/article.php?...

Biogeography, evolution, and ecology of the ancestral cichlids

This article examines the early evolution and biogeography of cichlids, discussing fossil evidence and the hypotheses regarding their origins. It reviews the debate between Gondwanan vicariance and ma...

cichlidae.com

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Kevin Stevens @neohibolites.bsky.social · 1d

Paralabidochromis sauvagei from Lake Victoria. My fish are of the southern variety of this species, their ancestors originally come from Makobe Island. In the north of the lake, males are actually blue. 🐟 #fishkeeping #photography

A colorful cichlid in my aquarium. Plants are visible in the background. The fish is yellow with some reddish hues. It has a gray head and a black stripe running through its eye. Some faint lines are visible on its body.

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Henning @geohenning.bsky.social · 20h

I'm looking for recommendations for more books like these - about the history of geology or connected to major geologic events from the past in any way. ⚒️ #Geology

Four books. "Extinctions: How Life Survives, Adapts and Evolves" by Michael J. Benton.
"The Map That Changed the World" by Simon Winchester
"Ghosts of the Tsunami" by Richard Lloyd Parry
"Ein Riss durch die Welt" by Simon Winchester

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Kevin Stevens @neohibolites.bsky.social · 20h

Dorrik Stow - Vanished Ocean (includes poems about the Tethys)

Jack Repcheck - The Man who found Time (about James Hutton)

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Catie Haunted Haus-man 👻👻👻 @catiehausman.bsky.social · 1d

Job posting!

apply.interfolio.com/173947

Assistant or Associate Professor of Global Environmental Policy

University of Michigan-Ann Arbor: School for Environment and Sustainability

Come be a Wolverine! In Tree Town! In the Mitten!

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

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ciclasoman.bsky.social @ciclasoman.bsky.social · 7d

Juvenile Etroplus canarensis are the ultimate curious and gorgeous small cichlid ever 🙌🏼😍

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Marine eDNA Dude @marinednadude.bsky.social · 1d

Got to hang out with the greatest recent adaptive radiation of vertebrates on earth. All hail the mbuna - Malawi cichlids

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Kevin Stevens @neohibolites.bsky.social · 1d

Finding Waldo - crustacean edition.

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Kristen Behrens, PhD @behrenskristen.bsky.social · 1d

A friend from the pond that’s on the other side of my building and one of a few in my neighborhood. Also saw some decently sized bass and blue gills that probably appreciate the No Fishing signs

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Paul D. Taylor @nhmbryozoa.bsky.social · 1d

The Incredible Shrinking Bryozoans. Published today, our study of long-term zooid size decrease in the cyclostome form-genus 'Berenicea'. doi: 10.1111/pala.70027

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Kevin Stevens @neohibolites.bsky.social · 1d

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

Very detailed developmental study of one of my favorite cichlids.

🐟🧪

The Early Development of the Blue‐Eye Cichlid, Cryptoheros spilurus (Cichliformes: Cichlidae)

We document the early development of Cryptoheros spilurus, highlighting rapid cranial differentiation, sensory organ formation, and fin development. Ontogenetic allometry and ultrastructural traits r...

onlinelibrary.wiley.com

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Kevin Stevens @neohibolites.bsky.social · 1d

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Henning @geohenning.bsky.social · 2d

Im Süden von #Recklinghausen stecken bereits die Geophone. In den nächsten Tagen mal die Augen und Ohren offen halten nach den Vibro-Trucks. ☺️ #Geothermie ⚒️ #Geology

An orange gephone sitting in green grass. A field and trees in the background.

Close-up of the Geophone and a little info card attached to it

Close-up of the Geophone and a little info card and QR code attached to it

A line of geophones in the grass along a small round. A field and trees at the sides.

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Colton the fish squeezer🐟🪴📚🏕️🐝 @fishsqueezer.bsky.social · 3d

I say this every year during bull trout spawning season, but please don't build rock dams across streams with migratory fish (especially during a record drought). 🐟🧪

Somehow the world must figure out how to survive the loss of your artistry when you die, so you mind as well help us by stopping now.

A boulder and cobble dam built across a stream at low water, blocking the surface flow of the water.

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Jarrett Byrnes @jebyrnes.bsky.social · 3d

Heeeeey #Microbial #Ecology folk! My department has a job opening for a tenure track Microbial Ecologist! Feel free to DM me with questions. Come join our awesome supportive whip-smart & kind crew in the Biology Department of @umassboston.bsky.social! employmentopportunities.umb.edu/boston/en-us...

The ISC - your new home at UMass Boston?

The view of Boston Harbor from front of campus

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HulloThere @jethroreading32.bsky.social · 2d

This evenings “fish I can’t stop looking at” is the tinselfish (Grammicolepis) - look at this fella. What’s his deal.

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Noah Bressman, PhD @noahwithfish.bsky.social · 2d

After playing with some options amongst the students in my lab, I have finally developed a lab logo! Prepare for our merch line featuring it on shirts, hats, sneakers, guitar picks, NFTs, bibles, steaks, wine, golf courses, and more!

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HulloThere @jethroreading32.bsky.social · 2d

Had the absolute pleasure of mounting and sampling some greater argentine (Argentina silus) otoliths today - look how beautiful they are! And so easy to age!

These specimens were dissected at sea around 1AM, after a full-day migraine - gratifying to have them be nice samples!

A really nice otolith (an ear stone taken from a fish) - it has very visible growth rings and is shaped like a sort of wonky leaf.

A greater argentine (Argentina silus) - it is a silvery fish with a slight greenish gold iridescent on the dorsal side. The eyes are HUGE!

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John P. Friel, Ph.D. @friel.bsky.social · 2d

My unsolicited #eel fact for today is that there are ten species of Gulper Eels (Saccopharynx) while there is only a single species of Pelican Eel (Eurypharynx ).🐟

www.youtube.com/watch?v=3nwD...

Throwback to one of our earliest encounters with a deep-sea gulper eel

YouTube video by MBARI (Monterey Bay Aquarium Research Institute)

www.youtube.com

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jörg.freyhof @jfreyhof.bsky.social · 2d

From time to time I like to advertise my Flickr page www.flickr.com/photos/joerg...
Almost 1000 pictures for you to use freely and open access - no payment for all your non-commercials

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Matt @xenomatt.bsky.social · 3d

Pseudanthias squamipinnis, Anilao. Its common name might be a lyretail anthias, or a scalefin anthias, or a sea goldie, depending on who you ask. But whatever they're called, they're always good to hang out with on the reef tops at the end of a dive.

#MarineLife 🐟🌿

A small colourful fish. Its body is orange, becoming purple-tinged towards the head and pale towards the tail. It has a prominent purple blotch at the base of its light purple pelvic fin and a purple tale with a dark margin. The erect dorsal fin has a yellow stripe at the base of the front part, a red stripe running into a black spot at the top of the rear half, and a long yellow spine rising from the front. There are plate corals in the background.

#UnderwaterPhotography #WildlifePhotography #NaturePhotography #Nature #Wildlife

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Dr. Brendan Anderson @fossilsndcoffee.bsky.social · 2d

Rutgers is looking for a vertebrate paleontologist: www.higheredjobs.com/details.cfm?...

Assistant Professor in Paleontological Vertebrate Evolution - HigherEdJobs

Jobs in higher education. Faculty and administrative positions at colleges and universities. Updated daily. Free to job seekers.

www.higheredjobs.com

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Kevin Stevens @neohibolites.bsky.social · 4d

For several days now, the male‘s having no success with displaying to female no. 2. 🐟 #fishkeeping #video

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Kevin Stevens @neohibolites.bsky.social · 4d

For several days now, the male‘s having no success with displaying to female no. 2. 🐟 #fishkeeping #video

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Alex Maile @anoplogaster.bsky.social · 4d

New addition to the aquarium! A Longnose Hawkfish (Oxycirrhites typus). Loves the camera more than any other fish I’ve had.

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Dr. Elizabeth Santos @lizmillermacroevo.bsky.social · 7d

I would love to see an effort like this for other fields! Systematic ichthyology anyone...

www.cambridge.org/core/journal...

Identifying the Big Questions in paleontology: a community-driven project | Paleobiology | Cambridge Core

Identifying the Big Questions in paleontology: a community-driven project

www.cambridge.org

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