Kevin Stevens
@neohibolites.bsky.social
Pinned
Kevin Stevens
@neohibolites.bsky.social
· May 27
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
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?...
cichlidae.com/article.php?...
Reposted by Kevin Stevens
Microbial community succession of home aquarium biofilters associated with early establishment of comammox Nitrospira
-in #ISMEComms from @joshdneufeld.bsky.social
academic.oup.com/ismecommun/a...
-in #ISMEComms from @joshdneufeld.bsky.social
academic.oup.com/ismecommun/a...
Microbial community succession of home aquarium biofilters associated with early establishment of comammox Nitrospira
Abstract. Nitrification in aquarium biofilters transforms toxic ammonia (NH₃/NH₄+) into less toxic nitrate (NO₃-) via nitrite (NO₂-). Known freshwater aqua
academic.oup.com
November 16, 2025 at 9:48 AM
Microbial community succession of home aquarium biofilters associated with early establishment of comammox Nitrospira
-in #ISMEComms from @joshdneufeld.bsky.social
academic.oup.com/ismecommun/a...
-in #ISMEComms from @joshdneufeld.bsky.social
academic.oup.com/ismecommun/a...
Reposted by Kevin Stevens
Reposted by Kevin Stevens
Hey, do ya like Sturgeon? We sure do! Want to learn about how repopulating their native habitats can actually help humans, too? I bet you do! Check out episode 66, with our friend and incredible guest, Dr. Jeff Wyatt! You can find the episode on your podcatcher of choice, right now!
November 16, 2025 at 2:16 AM
Hey, do ya like Sturgeon? We sure do! Want to learn about how repopulating their native habitats can actually help humans, too? I bet you do! Check out episode 66, with our friend and incredible guest, Dr. Jeff Wyatt! You can find the episode on your podcatcher of choice, right now!
Reposted by Kevin Stevens
Amazing development of the genital tassel on the dominant male Oreochromis squamipinnis (Lake Malawi endemic).
November 15, 2025 at 7:56 PM
Amazing development of the genital tassel on the dominant male Oreochromis squamipinnis (Lake Malawi endemic).
Reposted by Kevin Stevens
Some of the other cichlids from my „Pan-African“ aquarium: Paralabidochromis sauvagei, from Lake Victoria, H. sp. „Ruby Green“, a female, Coptodon bythobates, from Lake Bermin in Cameroon. 🐟 #photography #fishkeeping
November 14, 2025 at 4:53 PM
Some of the other cichlids from my „Pan-African“ aquarium: Paralabidochromis sauvagei, from Lake Victoria, H. sp. „Ruby Green“, a female, Coptodon bythobates, from Lake Bermin in Cameroon. 🐟 #photography #fishkeeping
Reposted by Kevin Stevens
Een geplukte Archaeopteryx klaar om te worden gebraden #FossilFriday
November 15, 2025 at 7:08 PM
Een geplukte Archaeopteryx klaar om te worden gebraden #FossilFriday
Reposted by Kevin Stevens
November 11, 2025 at 4:37 PM
Reposted by Kevin Stevens
Yoyo loach from one of my aquariums. A freshwater ornamental #fish I've had for several years. For #fishyfriday. #fish #aquarium #fishkeeping 🐟
November 15, 2025 at 1:26 AM
Yoyo loach from one of my aquariums. A freshwater ornamental #fish I've had for several years. For #fishyfriday. #fish #aquarium #fishkeeping 🐟
Reposted by Kevin Stevens
It's time for #FishOfTheWeek and today I want to talk about a really cool fish that has become much maligned (not without reason) in North America. That's right, today we're gonna talk about the so-called Frankenfish. The snakehead
1/7
1/7
November 14, 2025 at 5:05 PM
It's time for #FishOfTheWeek and today I want to talk about a really cool fish that has become much maligned (not without reason) in North America. That's right, today we're gonna talk about the so-called Frankenfish. The snakehead
1/7
1/7
Reposted by Kevin Stevens
Three weeks, no picture of moth posted by me. Yes, the season is coming to an end, but still some interesting species are still on the wing, as this Asteroscopus sphinx. It came to the light yesterday in Berlin. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
November 14, 2025 at 4:28 PM
Three weeks, no picture of moth posted by me. Yes, the season is coming to an end, but still some interesting species are still on the wing, as this Asteroscopus sphinx. It came to the light yesterday in Berlin. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
Some of the other cichlids from my „Pan-African“ aquarium: Paralabidochromis sauvagei, from Lake Victoria, H. sp. „Ruby Green“, a female, Coptodon bythobates, from Lake Bermin in Cameroon. 🐟 #photography #fishkeeping
November 14, 2025 at 4:53 PM
Some of the other cichlids from my „Pan-African“ aquarium: Paralabidochromis sauvagei, from Lake Victoria, H. sp. „Ruby Green“, a female, Coptodon bythobates, from Lake Bermin in Cameroon. 🐟 #photography #fishkeeping
Reposted by Kevin Stevens
Tonight, the Groningen region in the Netherlands was shaken by a magnitude 3.4 #earthquake, according to KNMI. This is the biggest eq in the region in the past 6 years. Here's the seismogram from my Raspishake in Herne, Germany, 211 km away from the epicenter. 🧪⚒️ #Geology
@raspishake.bsky.social
@raspishake.bsky.social
November 14, 2025 at 6:42 AM
Tonight, the Groningen region in the Netherlands was shaken by a magnitude 3.4 #earthquake, according to KNMI. This is the biggest eq in the region in the past 6 years. Here's the seismogram from my Raspishake in Herne, Germany, 211 km away from the epicenter. 🧪⚒️ #Geology
@raspishake.bsky.social
@raspishake.bsky.social
Reposted by Kevin Stevens
Haplochromis sp. „Ruby Green“, a threatened species of cichlid from Uganda. A close relative of the cichlids of Lake Victoria, Africa‘s largest lake. 🐟 #photography #fishkeeping #conservation
November 13, 2025 at 5:10 PM
Haplochromis sp. „Ruby Green“, a threatened species of cichlid from Uganda. A close relative of the cichlids of Lake Victoria, Africa‘s largest lake. 🐟 #photography #fishkeeping #conservation
Reposted by Kevin Stevens
the subtle green/yellow iridescence on my penguin tetras is so nice
October 26, 2025 at 5:08 AM
the subtle green/yellow iridescence on my penguin tetras is so nice
Reposted by Kevin Stevens
This is an Eastern Cape giant cycad. This specimen at Kew Gardens is the world's oldest potted plant* & it is older than the United States.
I found this oddly comforting? Certain systems seem deeply entrenched & unchangeable but in reality there are houseplants that have been around longer.🧪🌿
I found this oddly comforting? Certain systems seem deeply entrenched & unchangeable but in reality there are houseplants that have been around longer.🧪🌿
November 13, 2025 at 7:47 PM
This is an Eastern Cape giant cycad. This specimen at Kew Gardens is the world's oldest potted plant* & it is older than the United States.
I found this oddly comforting? Certain systems seem deeply entrenched & unchangeable but in reality there are houseplants that have been around longer.🧪🌿
I found this oddly comforting? Certain systems seem deeply entrenched & unchangeable but in reality there are houseplants that have been around longer.🧪🌿
Reposted by Kevin Stevens
A snail appreciation post. I've been collecting longitudinal population data on my rabbit snail population since I got George & Gracie in early 2020. They went on to have many children and today the population is still going strong, although slightly declining as the snails enter old age.
November 13, 2025 at 7:09 PM
A snail appreciation post. I've been collecting longitudinal population data on my rabbit snail population since I got George & Gracie in early 2020. They went on to have many children and today the population is still going strong, although slightly declining as the snails enter old age.
Reposted by Kevin Stevens
Reposted by Kevin Stevens
JOB OPPORTUNITY! Senior Researcher in Freshwater Environmental Genetics to work with us on the ERC REFRESH Programme studying the role of dissolved organic matter in freshwater ecosystems shorturl.at/zOajg @pennyjohnes.bsky.social @bristoluni.bsky.social @ercrefresh.bsky.social @danread.bsky.social
November 12, 2025 at 10:01 PM
JOB OPPORTUNITY! Senior Researcher in Freshwater Environmental Genetics to work with us on the ERC REFRESH Programme studying the role of dissolved organic matter in freshwater ecosystems shorturl.at/zOajg @pennyjohnes.bsky.social @bristoluni.bsky.social @ercrefresh.bsky.social @danread.bsky.social
Haplochromis sp. „Ruby Green“, a threatened species of cichlid from Uganda. A close relative of the cichlids of Lake Victoria, Africa‘s largest lake. 🐟 #photography #fishkeeping #conservation
November 13, 2025 at 5:10 PM
Haplochromis sp. „Ruby Green“, a threatened species of cichlid from Uganda. A close relative of the cichlids of Lake Victoria, Africa‘s largest lake. 🐟 #photography #fishkeeping #conservation
Reposted by Kevin Stevens
My department at UT Austin is looking to hire an Assistant Professor in Evolutionary Biology, broadly defined. Feel free to reach out to me with any questions you may have.
apply.interfolio.com/177547
apply.interfolio.com/177547
Apply - Interfolio
{{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com
November 13, 2025 at 3:23 PM
My department at UT Austin is looking to hire an Assistant Professor in Evolutionary Biology, broadly defined. Feel free to reach out to me with any questions you may have.
apply.interfolio.com/177547
apply.interfolio.com/177547
Reposted by Kevin Stevens
Are you a postdoc or Asst. Prof on the job market? Check out our listing and consider applying! The search is very broad and it’s in a great department, location, university! Even with the crazy schedule that comes with being a PI- I love my job @ucdavis.bsky.social @ucdavisvetmed.bsky.social!
Our department @ucdavisvetmed.bsky.social @ucdavis.bsky.social is hiring! We welcome research that diversifies or complements existing strengths in gastrointestinal, neuroimmune, musculoskeletal, cardiorespiratory
systems and/or developmental biology. @socdevbio.bsky.social @ascbiology.bsky.social
systems and/or developmental biology. @socdevbio.bsky.social @ascbiology.bsky.social
November 12, 2025 at 6:54 PM
Are you a postdoc or Asst. Prof on the job market? Check out our listing and consider applying! The search is very broad and it’s in a great department, location, university! Even with the crazy schedule that comes with being a PI- I love my job @ucdavis.bsky.social @ucdavisvetmed.bsky.social!
Reposted by Kevin Stevens
My observation of the day: Carabus granulatus heavily colonised by the mite Iphidosoma fimetarium. Naturally, I had no idea which mite this might be - iNaturalist owen_seeman provided the identification. 👍 iNaturalist #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
November 12, 2025 at 7:19 PM
My observation of the day: Carabus granulatus heavily colonised by the mite Iphidosoma fimetarium. Naturally, I had no idea which mite this might be - iNaturalist owen_seeman provided the identification. 👍 iNaturalist #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity
Reposted by Kevin Stevens
Want to do a PhD linking palaeontology, ecological modelling and polar ecosystems? Look no further than this NERC GW4+ DLTP funded project with @rowanwhittlebas.bsky.social at @bas.ac.uk & @bristolpalaeo.bsky.social and others (inc me).
www.bristol.ac.uk/media-librar...
www.bristol.ac.uk/media-librar...
www.bristol.ac.uk
November 12, 2025 at 3:47 PM
Want to do a PhD linking palaeontology, ecological modelling and polar ecosystems? Look no further than this NERC GW4+ DLTP funded project with @rowanwhittlebas.bsky.social at @bas.ac.uk & @bristolpalaeo.bsky.social and others (inc me).
www.bristol.ac.uk/media-librar...
www.bristol.ac.uk/media-librar...
Reposted by Kevin Stevens
My baby #sparklinggourami all grown up in my moms #fishtank. They are so much bigger than their parents.
November 11, 2025 at 9:47 PM
My baby #sparklinggourami all grown up in my moms #fishtank. They are so much bigger than their parents.