Nathan Lujan
@potamophile.bsky.social
260 followers 170 following 45 posts
Ichthyologist | Associate Curator, Royal Ontario Museum | Assistant Professor, University of Toronto | River Guardian: http://cutt.ly/UgQO0Z1 | @IUCN FW Fish Specialist Group | IG: @potamophile
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potamophile.bsky.social
The @romtoronto.bsky.social Sharks exhibition is opening this weekend! The perfect family-friendly destination for the Thanksgiving long weekend!
Reposted by Nathan Lujan
nataliajagielska.bsky.social
And that's how you integrate digital elements into an exhibition. Part of the temporary "China's Dinosaur World" at the Shanghai Natural History Museum, China. Closing this November.

Video source: Shanghai Let's Meet
Reposted by Nathan Lujan
linneansociety.bsky.social
Today is #AmazonRainforestDay! Home to 47 million people and around 10% of all species on Earth, this incredible ecosystem is under threat from mass deforestation and climate change. You can visit buff.ly/D6xZCkJ to learn more about how to help the Amazon Rainforest.
An aerial view of a rainforest with a river running through it. Text on top reads "Amazon Rainforest Day".
potamophile.bsky.social
I'm excited to be traveling to Lima, Peru, tomorrow to give a keynote lecture on "New approaches to the study of neotropical fishes: Genomics, eDNA, and computed tomography" at the National Life Sciences Congress.
potamophile.bsky.social
Proud of @romtoronto.bsky.social and @utsc.utoronto.ca Provosts Postdoctoral Fellow Tobit Liyandja for publishing this core chapter of his PhD dissertation.
friel.bsky.social
Tobit L.D. Liyandja, Brian T. Smith, S. Elizabeth Alter, Brian L. Sidlauskas, Melanie L.J. Stiassny. 2025. Phylogenomics of African Labeo (Cypriniformes: Cyprinidae) emphasizing central African species, Molecular Phylogenetics and Evolution, 108427.🐟🧪

www.sciencedirect.com/.../pii/S105...
 Live photographs of representative specimens of African Labeo species from the Congo and Lower Guinea ichthyofaunal provinces. a) Labeo nasus, b) Labeo falcipinnis, c) Labeo greenii, d) Labeo parvus, e) Labeo weeksii, f) Labeo mbimbii, g) Labeo sp. 18, f) Labeo lukulae. Photos d, e, and g were taken in a photarium (photo tank) and the remaining photos were taken in plain air.
Reposted by Nathan Lujan
Reposted by Nathan Lujan
shoalorg.bsky.social
📢 We're hiring!

Roles at SHOAL don't come up that often, and when they do, we know they're exciting: are you our new Data Officer?

Learn more and apply here
👉 shoalconservation.org/careers/
Reposted by Nathan Lujan
briellecomartin.bsky.social
Was thrilled to find so many freshwater sponges during a practice dive in the St. Lawrence River, including some growing on unionid mussels! #freshwatersponges
Freshwater sponge on a rock. Freshwater sponges on unionid mussels.
Reposted by Nathan Lujan
trevorabranch.bsky.social
Foundations: please step up and take over the Biodiversity Heritage Library (BHL). This is an absolutely essential scanned archive of all of the old journals and books from the 1500s to about 1920. Has been indispensable for my research.
about.biodiversitylibrary.org/call-for-sup...
Call for Support: – About BHL
about.biodiversitylibrary.org
potamophile.bsky.social
Kicking off the 2025 ROM Population Genomics Symposium is @asherdcutter.bsky.social sharing new insights into the diversity of Caenorhabditis in the @romtoronto.bsky.social Glass Room.
potamophile.bsky.social
Great talk on population genomics of the Xingu River Volta Grande by PDF Tobit Liyandja from the Lovejoy and Lujan labs at the EEB-Toronto Atwood Colloquium!
eebatwood.bsky.social
Dr. Tobit Liyandja from the Lujan lab tells us about the effects of central Amazonian river rapids on population structure and gene flow in fishes! 🐟 #Atwood2025
Reposted by Nathan Lujan
anatrecord.bsky.social
Some microphagous fishes have a unique pocket-like throat structure, epibranchial organ (EBO), that helps gather tiny food particles. New study of 13 species reveals diverse EBO anatomy, weak phylogenetic ties & possible link to diet
Evans et al:
anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Nathan Lujan
romtoronto.bsky.social
We’re excited to announce our expanded slate of ROM Ontario Fish Identification Workshops for 2025. 🐟

Designed primarily for professionals, technicians, field biologists, and environmental consultants, other interested individuals - including university and college students – are also welcome!
potamophile.bsky.social
Fantastic map! Are had copies available for purchase? Do you have a list of references for your reconstruction? Just a minor suggestion that you follow the definitive Gibbs and Baron monograph in using the ‘Guiana’ spelling for the geological formation.
Reposted by Nathan Lujan
basaltweaver.bsky.social
Paleo-art-map of South America during the Latest Cretaceous (Maastrichtian, 72 - 66 MYA).

Original resolution: 75 x 100 cm (300 DPI).

This is the first part of a wider Maastrichtian series that I've been working on over the winter. Sharing another map tomorrow :)

#geology #dinosaurs #sciart
Reposted by Nathan Lujan
jhortal.bsky.social
Although many invertebrates and other less-charismatic groups are key for ecosystem service provision, they and their functions are rarely included in conservation strategies. Benoit Guénard, @achughes.bsky.social et al show how funding largely goes to charismatic rather than threatened species 🌐🧪🪲
Reposted by Nathan Lujan
shoalorg.bsky.social
Interesting that even in this article about conservation funding disparities, fish aren’t mentioned once.

‘Most conservation funds go to large vertebrates at expense of ‘neglected’ species’.

www.theguardian.com/environment/...
Most conservation funds go to large vertebrates at expense of ‘neglected’ species
Study shows funding bias towards animals like rhino while other endangered species including amphibians and algae disregarded
www.theguardian.com
Reposted by Nathan Lujan
ecoinvasions.bsky.social
What a great story! The introduction alone is well worth reading.
mwestneat.bsky.social
Wow, a new species of redhorse just dropped. What a great fish!
🐟🌎🧪🌿🎣

bioone.org/journals/ich...
New redhorse fish, with shiny yellow green scales and Ruby red fin edges
potamophile.bsky.social
To be held at ⁦⁦University of Toronto Law School next Friday, 28 February.
potamophile.bsky.social
Finally having the first lab meeting of 2025, with presentations on Acestrorhamphidae alpha taxonomy from Tiago Faria and 3D shape variation in loricariid opercles from Mikhail Clare!