Wrapping up winter sampling in the desert
November 25, 2024 at 5:18 AM
Wrapping up winter sampling in the desert
Red River pupfish (Cyprinodon rubrofluviatilis) in #watercolor and ink for #SciArtSeptember 20 / #SundayFishSketch “Meander.” These little fish occur in the meandering, sandy-bottomed streams in the upper Red River basin of western Oklahoma and Northwest Texas, particularly in harsh environments.
September 20, 2026 at 8:07 PM
Red River pupfish (Cyprinodon rubrofluviatilis) in #watercolor and ink for #SciArtSeptember 20 / #SundayFishSketch “Meander.” These little fish occur in the meandering, sandy-bottomed streams in the upper Red River basin of western Oklahoma and Northwest Texas, particularly in harsh environments.
Pupfishes (Cyprinodon salinus salinus), Salt Creek, Death Valley, California 12.03.2005
#california #usa #nature #naturephotography #photography #wildlife #wildlifephotography #fauna #animal #animals #fish #fishes #valokuvataivas
#california #usa #nature #naturephotography #photography #wildlife #wildlifephotography #fauna #animal #animals #fish #fishes #valokuvataivas
March 12, 2025 at 8:13 AM
Pupfishes (Cyprinodon salinus salinus), Salt Creek, Death Valley, California 12.03.2005
#california #usa #nature #naturephotography #photography #wildlife #wildlifephotography #fauna #animal #animals #fish #fishes #valokuvataivas
#california #usa #nature #naturephotography #photography #wildlife #wildlifephotography #fauna #animal #animals #fish #fishes #valokuvataivas
♂️ & ♀️ generalist #pupfish (Cyprinodon variegatus) from San Salvador Island, Bahamas 🐟. @fishfena.bsky.social at the Martin Fish Speciation Lab (UC Berkeley) uses this “wild type” species to study craniofacial genetics and evolutionary developmental biology. #ModelMonday #EvoDevo
May 25, 2026 at 2:01 PM
♂️ & ♀️ generalist #pupfish (Cyprinodon variegatus) from San Salvador Island, Bahamas 🐟. @fishfena.bsky.social at the Martin Fish Speciation Lab (UC Berkeley) uses this “wild type” species to study craniofacial genetics and evolutionary developmental biology. #ModelMonday #EvoDevo
January 2, 2025 at 9:48 PM
But wait, says the detail-noticing pupfish lover among you...
That art is the Ash Meadows Amargosa pupfish -- Cyprinodon nevadensis.
The devils hole pupfish are Cyprinodon diabolis.
No, I'm not That Jerk and did not say anything 😆. Instead we enjoyed a moment of shared pupfish appreciation. 🐟
That art is the Ash Meadows Amargosa pupfish -- Cyprinodon nevadensis.
The devils hole pupfish are Cyprinodon diabolis.
No, I'm not That Jerk and did not say anything 😆. Instead we enjoyed a moment of shared pupfish appreciation. 🐟
December 19, 2025 at 8:29 PM
But wait, says the detail-noticing pupfish lover among you...
That art is the Ash Meadows Amargosa pupfish -- Cyprinodon nevadensis.
The devils hole pupfish are Cyprinodon diabolis.
No, I'm not That Jerk and did not say anything 😆. Instead we enjoyed a moment of shared pupfish appreciation. 🐟
That art is the Ash Meadows Amargosa pupfish -- Cyprinodon nevadensis.
The devils hole pupfish are Cyprinodon diabolis.
No, I'm not That Jerk and did not say anything 😆. Instead we enjoyed a moment of shared pupfish appreciation. 🐟
Feeling like it's officially #pupfishweek, so here's another one of my favorite videos but this time from the field!
I took this video of a cutely colorful male #Cyprinodon beltrani while swimming in less than a meter of water in Laguna Chichancanab during our last field season with … 🧵👇
I took this video of a cutely colorful male #Cyprinodon beltrani while swimming in less than a meter of water in Laguna Chichancanab during our last field season with … 🧵👇
May 29, 2026 at 3:30 AM
Feeling like it's officially #pupfishweek, so here's another one of my favorite videos but this time from the field!
I took this video of a cutely colorful male #Cyprinodon beltrani while swimming in less than a meter of water in Laguna Chichancanab during our last field season with … 🧵👇
I took this video of a cutely colorful male #Cyprinodon beltrani while swimming in less than a meter of water in Laguna Chichancanab during our last field season with … 🧵👇
Münster Zoo keeps and breeds the extinct in the wild Charco Palma pupfish (Cyprinodon veronicae). A species that has only survived in the aquariums of some dedicated aquarium hobbyists. 🐟 🧪 #fishkeeping #conservation #zoo
June 9, 2025 at 4:23 PM
Münster Zoo keeps and breeds the extinct in the wild Charco Palma pupfish (Cyprinodon veronicae). A species that has only survived in the aquariums of some dedicated aquarium hobbyists. 🐟 🧪 #fishkeeping #conservation #zoo
You'll be happy to hear that the endangered Devil's Hole Pupfish, Cyprinodon diabolis, survived the Kamchatka quake with minimal disturbance. Their one habitat in Death Valley National Park is famous for reacting to earthquakes with sloshing water in the pool. 🧪🌍⚒️ #TeamFish
Delicate Devils Hole pupfish rattled by Russian tsunami-earthquake
Devils Hole in Death Valley National Park is considered a unique indicator of the world’s earthquakes.
www.reviewjournal.com
August 2, 2025 at 4:09 PM
You'll be happy to hear that the endangered Devil's Hole Pupfish, Cyprinodon diabolis, survived the Kamchatka quake with minimal disturbance. Their one habitat in Death Valley National Park is famous for reacting to earthquakes with sloshing water in the pool. 🧪🌍⚒️ #TeamFish
Long-term small effective population size, inbreeding, and a recessive lethal haplotype drive premature death in the endangered Devils Hole pupfish (Cyprinodon diabolis) https://www.biorxiv.org/content/10.64898/2026.06.06.730634v1
June 10, 2026 at 10:32 PM
Long-term small effective population size, inbreeding, and a recessive lethal haplotype drive premature death in the endangered Devils Hole pupfish (Cyprinodon diabolis) https://www.biorxiv.org/content/10.64898/2026.06.06.730634v1
Adaptive radiation along ecological and morphological lines of least resistance in Cyprinodon pupfishes https://www.biorxiv.org/content/10.1101/2025.08.13.670168v1
August 17, 2025 at 3:32 AM
Adaptive radiation along ecological and morphological lines of least resistance in Cyprinodon pupfishes https://www.biorxiv.org/content/10.1101/2025.08.13.670168v1
ankle-deep water is not ideal for photography with a DSLR camera housing.... #Cyprinodon bobmilleri males sparring in a very shallow spring, northern Mexico!
December 2, 2024 at 5:35 PM
ankle-deep water is not ideal for photography with a DSLR camera housing.... #Cyprinodon bobmilleri males sparring in a very shallow spring, northern Mexico!
okay... so this is something that nobody really cares about. but. The pupfish in Webfishing depicts a Devil's Hole Pupfish(?), BUT the scientific name is for the Bighead Pupfish.
funny oversight!
funny oversight!
November 1, 2024 at 5:47 PM
okay... so this is something that nobody really cares about. but. The pupfish in Webfishing depicts a Devil's Hole Pupfish(?), BUT the scientific name is for the Bighead Pupfish.
funny oversight!
funny oversight!
Voilà il y a sûrement encore des erreurs (c dur le formatage sur wikipédia quand on a 0,5 page d'expérience ok) mais je suis à présent émotionnellement investie dans la protection de ce petit poisson de la Vallée de la Mort fr.wikipedia.org/wiki/Cyprino...
Cyprinodon salinus — Wikipédia
fr.wikipedia.org
October 11, 2025 at 1:08 PM
Voilà il y a sûrement encore des erreurs (c dur le formatage sur wikipédia quand on a 0,5 page d'expérience ok) mais je suis à présent émotionnellement investie dans la protection de ce petit poisson de la Vallée de la Mort fr.wikipedia.org/wiki/Cyprino...
New preprint from the last portion of my PhD! Despite low masked load, we found evidence for strong inbreeding depression in Devils Hole pupfish. The reason? A recessive lethal haplotype that causes a heart defect among developing embryos. www.biorxiv.org/content/10.6...
Long-term small effective population size, inbreeding, and a recessive lethal haplotype drive premature death in the endangered Devils Hole pupfish (Cyprinodon diabolis)
As anthropogenic habitat fragmentation and population decline accelerate globally, growing numbers of species face compounding demographic and genetic threats to long-term survival. Many populations a...
www.biorxiv.org
June 11, 2026 at 10:46 PM
New preprint from the last portion of my PhD! Despite low masked load, we found evidence for strong inbreeding depression in Devils Hole pupfish. The reason? A recessive lethal haplotype that causes a heart defect among developing embryos. www.biorxiv.org/content/10.6...
Imagine, t'es un poisson dont l'espèce n'évolue que dans un seul et unique trou d'eau paumé dans la vallée de la mort et nul part ailleurs. Et ben même là, t'es pas à l'abris de te faire vomir/tirer dessus par des hillbillies
![Le dispositif de protection n'a pas empêché, le 30 avril 2016, l'intrusion illégale de trois personnes alcoolisées à l'intérieur de Devils Hole. Elles ont tiré des coups de feu sur le matériel scientifique, vomi dans le lieu et abandonné des cannettes de bière[13]. L'une d'entre elles s'est même baignée dans l'eau. Peu après leur passage, un poisson a été retrouvé mort (le dernier décompte était de 115 individus) sans que les scientifiques puissent lier ce décès à l'intrusion[40].](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:h4tiqxlaess3yxdmrwhqqdwh/bafkreiegvphpjqonf72dmpnu3rwlaxfl4oh4f2k5hv2m7fxkzbwfhthbpu)
April 16, 2025 at 10:03 AM
Imagine, t'es un poisson dont l'espèce n'évolue que dans un seul et unique trou d'eau paumé dans la vallée de la mort et nul part ailleurs. Et ben même là, t'es pas à l'abris de te faire vomir/tirer dessus par des hillbillies
This morning's coffee drinking activity - uploading and refining iNaturalist observations of Pecos gambusia (the /G. pyrros split) and Comanche Springs pupfish (/Cyprinodon elegans/).
March 14, 2026 at 1:38 PM
This morning's coffee drinking activity - uploading and refining iNaturalist observations of Pecos gambusia (the /G. pyrros split) and Comanche Springs pupfish (/Cyprinodon elegans/).
The Conchos pupfish is not a monolith! We found strong genetic divergence within Cyprinodon eximius, including the Devils River population in TX. Check out our new paper in Conservation Genetics! #fish #FishSci #TeamFish link.springer.com/article/10.1...
Population genetic and phylogenetic analysis of pupfish (Cyprinodon, Cyprinodontidae) in the Rio Conchos and adjacent rivers reveals hidden diversity - Conservation Genetics
Conservation Genetics - Understanding genetic and phylogenetic relationships among closely related species is critical for effective conservation planning. In the Rio Conchos basin of northern...
link.springer.com
March 6, 2026 at 2:40 AM
The Conchos pupfish is not a monolith! We found strong genetic divergence within Cyprinodon eximius, including the Devils River population in TX. Check out our new paper in Conservation Genetics! #fish #FishSci #TeamFish link.springer.com/article/10.1...
I have a new paper out in Environmental Biology of Fishes on the effects of parasites on the life history of White Sands Pupfish! The two main findings being:
🧵(1/3)
rdcu.be/eptDZ
🧵(1/3)
rdcu.be/eptDZ
Life history trade-offs mediated by digene parasites in the protected White Sands pupfish (Cyprinodon tularosa)
rdcu.be
June 4, 2025 at 7:17 PM
I have a new paper out in Environmental Biology of Fishes on the effects of parasites on the life history of White Sands Pupfish! The two main findings being:
🧵(1/3)
rdcu.be/eptDZ
🧵(1/3)
rdcu.be/eptDZ
Approx 10,000 years ago, large lakes and rivers were common in Nevada. These pupfish occur naturally only within Devils Hole, left behind as the climate warmed and the waters began to dry up, recede, and separate, isolating species in and around small bodies of water.
www.fws.gov/species/devi...
www.fws.gov/species/devi...
Devils Hole Pupfish (Cyprinodon diabolis) | U.S. Fish & Wildlife Service
www.fws.gov
April 17, 2026 at 7:37 PM
Approx 10,000 years ago, large lakes and rivers were common in Nevada. These pupfish occur naturally only within Devils Hole, left behind as the climate warmed and the waters began to dry up, recede, and separate, isolating species in and around small bodies of water.
www.fws.gov/species/devi...
www.fws.gov/species/devi...
Sheepshead Minnows (Cyprinodon variegatus) are not true minnows, but are pupfish (Cyprinodontidae), a type of killifish (Cyprinodontiformes). Unlike true minnows (Cyprinidae) that lack teeth, killifish have teeth and are sometimes called "toothcarps", which is evident in this specimen 🐟🐡🐙🦈🧪🐋🐠
September 3, 2024 at 1:25 PM
Sheepshead Minnows (Cyprinodon variegatus) are not true minnows, but are pupfish (Cyprinodontidae), a type of killifish (Cyprinodontiformes). Unlike true minnows (Cyprinidae) that lack teeth, killifish have teeth and are sometimes called "toothcarps", which is evident in this specimen 🐟🐡🐙🦈🧪🐋🐠
As a result of reading the relevant Wikipedia page I now imagine some individual Devil's Hole Pupfish developing esoteric conspiracy theories about how human scientists are going to "Great Replace" them with hybrids cross-bred with Cyprinodon nevadensis with bigger pelvic fins and greater fecundity.
June 18, 2026 at 1:04 PM
As a result of reading the relevant Wikipedia page I now imagine some individual Devil's Hole Pupfish developing esoteric conspiracy theories about how human scientists are going to "Great Replace" them with hybrids cross-bred with Cyprinodon nevadensis with bigger pelvic fins and greater fecundity.
Some old art of the Quitobaquito pupfish, an endangered species endemic to Organ Pipe Cactus National Monument and the Sonoyata River along the Arizona-Mexico border! #SundayFishSketch #CincoDeMayo
May 4, 2025 at 1:53 PM
Some old art of the Quitobaquito pupfish, an endangered species endemic to Organ Pipe Cactus National Monument and the Sonoyata River along the Arizona-Mexico border! #SundayFishSketch #CincoDeMayo
The Devils Hole Pupfish in Devils Hole east of Death Valley in Ash Meadows National Wildlife Reserve in Nye Co, and the Moapa Dace at Warm Springs near Moapa, NV, were among the fish added to Endangered Species list on Mar 11, 1967. tinyurl.com/4ekke5mp
Devils Hole Pupfish (Cyprinodon diabolis) | U.S. Fish & Wildlife Service
tinyurl.com
March 11, 2025 at 11:42 PM
The Devils Hole Pupfish in Devils Hole east of Death Valley in Ash Meadows National Wildlife Reserve in Nye Co, and the Moapa Dace at Warm Springs near Moapa, NV, were among the fish added to Endangered Species list on Mar 11, 1967. tinyurl.com/4ekke5mp