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Nathan Lujan

@potamophile.bsky.social

Ichthyologist | Associate Curator, Royal Ontario Museum | Assistant Professor, University of Toronto | River Guardian: http://cutt.ly/UgQO0Z1 | @IUCN FW Fish Specialist Group | IG: @potamophile

284 Followers  |  179 Following  |  53 Posts  |  Joined: 18.11.2024
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Posts by Nathan Lujan (@potamophile.bsky.social)

Shout out to the inestimable Sandra Raredon, the Smithsonian Museum Specialist who made this images, and for decades has helped visiting researchers produce similar images.

30.01.2026 05:59 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Discovering the Okapi
YouTube video by Linnean Society Discovering the Okapi

I'm pleased to see the @linneansociety.bsky.social have posted a video of my talk on Discovering the Okapi on their YouTube channel, here
youtu.be/MCOHAGII0a0?...

28.01.2026 11:48 β€” πŸ‘ 14    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0
Wegener's (1915) depiction of the breakup of Pangaea. (a) the Carboniferous, (b) the Eocene, (c) today.

Wegener's (1915) depiction of the breakup of Pangaea. (a) the Carboniferous, (b) the Eocene, (c) today.

OTD in 1912, Alfred Wegener delivered a lecture propounding the theory that our modern continents were formed by the splitting and drifting apart of an ancient supercontinent, which he named Pangea.

Due to his failure to offer a plausible mechanism, he was widely ridiculed.

πŸ§ πŸ—ƒοΈβš’οΈ πŸ§ͺ #HistSTM #PhilSci

06.01.2026 16:55 β€” πŸ‘ 90    πŸ” 28    πŸ’¬ 6    πŸ“Œ 2

Great to see a natural history collection growing in an era when the expansion of barriers to such growth is inexorable.

27.12.2025 18:56 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Exciting new #Zebrafish research from the #WeinsteinLab, led by Jong Park!
β€œSpecialized gas-exchange endothelium of the zebrafish gill” β€”

www.biorxiv.org/content/10.6...

Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)

02.12.2025 22:48 β€” πŸ‘ 2220    πŸ” 327    πŸ’¬ 35    πŸ“Œ 21
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Ladies, does your man hang out in the deep sea, have a cartilaginous skeleton, and teeth on his forehead? That's not your man, that is a chimera. πŸ‘»πŸ¦ˆ

In honour of Halloween weekend, Nathan Lujan @potamophile.bsky.social Curator of Fishes at ROM) gave us a lesson on these creepy creatures.

31.10.2025 23:01 β€” πŸ‘ 40    πŸ” 7    πŸ’¬ 3    πŸ“Œ 0
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Collections Specialist 2: Birds & Mammals - Royal Ontario Museum - Career Page Apply to Collections Specialist 2: Birds & Mammals at Royal Ontario Museum in Toronto, ON, Canada.

royalontariomuseum.applytojob.com/apply/0SYvkr...

24.10.2025 17:53 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The Royal Ontario Museum @romtoronto.bsky.social is delighted to seek a collections specialist specializing in birds and mammals. Candidates should have 3-5 years collections experience and deep knowledge of avian and mammalian taxonomy, systematics, and identification.

24.10.2025 17:53 β€” πŸ‘ 3    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0
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Temporary Field Technician - Chattanooga, TN The Temporary Field Technician will assist with our Trispot Darter Distribution Assessment Project. The objective of this project is to assess the current distribution of the Trispot Darter (Etheostom...

The Tennessee Aquarium is hiring a temporary field technician for sampling work to discover Trispot Darter distribution. Details below: πŸ§ͺ🐟 #TeamFish

20.10.2025 21:23 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Alison Davis Rabosky, Director of the University of Michigan Museum of Zoology, poses in the museum’s Herpetology archives at the University of Michigan’s Research Museums Center.

Alison Davis Rabosky, Director of the University of Michigan Museum of Zoology, poses in the museum’s Herpetology archives at the University of Michigan’s Research Museums Center.

Thais Vasconcelos, Director of the University of Michigan Herbarium, poses at the University of Michigan’s Research Museums Center.

Thais Vasconcelos, Director of the University of Michigan Herbarium, poses at the University of Michigan’s Research Museums Center.

Great pair of articles in this morning's Ann Arbor News highlighting the outstanding new leadership of the U-M Museum of Zoology and U-M Herbarium: Alison Davis Rabosky (left) and Thais Vasconcelos (right). πŸ„πŸŒΏπŸŒΊπŸšπŸͺ²πŸŸπŸΈπŸπŸ¦πŸΏοΈ

18.10.2025 14:36 β€” πŸ‘ 51    πŸ” 14    πŸ’¬ 1    πŸ“Œ 0

Note that the successful candidate should be qualified for university cross-appointment, demonstrate potential for teaching undergraduate and graduate students, and be eligible for NSERC funding in support of their research (record of successful grant applications, or potential).

09.10.2025 18:38 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Curator of Plants & Sustainability - Royal Ontario Museum - Career Page Apply to Curator of Plants & Sustainability at Royal Ontario Museum in Toronto, ON, Canada.

The Royal Ontario Museum @romtoronto.bsky.social is delighted to seek a new Curator of Plants. With more than 1.1 million specimens, including the largest, most representative collection of Ontario flora available, ROM's plant collection is world-class and global in scope.

09.10.2025 18:38 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 1    πŸ“Œ 1

Note that the successful candidate should be qualified for university cross-appointment, demonstrate potential for teaching undergraduate and graduate students, and be eligible for NSERC funding in support of their research (record of successful grant applications, or potential).

09.10.2025 18:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Curator of Birds - Royal Ontario Museum - Career Page Apply to Curator of Birds at Royal Ontario Museum in Toronto, ON, Canada.

The Royal Ontario Museum @romtoronto.bsky.social is delighted to seek a new Curator of Birds. With more than 200,000 specimens, including the world’s largest collection of bird skeletons, ROM's bird collection is the largest in Canada and one of the world's largest.

09.10.2025 18:36 β€” πŸ‘ 3    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1
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The @romtoronto.bsky.social Sharks exhibition is opening this weekend! The perfect family-friendly destination for the Thanksgiving long weekend!

07.10.2025 14:02 β€” πŸ‘ 20    πŸ” 8    πŸ’¬ 0    πŸ“Œ 1
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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

27.09.2025 03:02 β€” πŸ‘ 3749    πŸ” 1229    πŸ’¬ 48    πŸ“Œ 67
An aerial view of a rainforest with a river running through it. Text on top reads "Amazon Rainforest Day".

An aerial view of a rainforest with a river running through it. Text on top reads "Amazon Rainforest Day".

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.

05.09.2025 15:31 β€” πŸ‘ 8    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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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.

17.08.2025 15:42 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Proud of @romtoronto.bsky.social and @utsc.utoronto.ca Provosts Postdoctoral Fellow Tobit Liyandja for publishing this core chapter of his PhD dissertation.

10.08.2025 22:57 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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ChargΓ© de recherche bioinformatique appliquΓ©e Γ  la taxonomie intΓ©grative (F/H) @ MusΓ©um national d'Histoire naturelle MusΓ©um national d'Histoire naturellerecrute !

Postdoc position (24 mos) in Bioinformatics for Integrative Taxonomy at MNHN, Paris. Develop software tools for taxonomy research. Apply by Sept 7: https://recrutement.mnhn.fr/front-jobs-detail.html?id_job=1294&id_origin=0 #postdoc

26.07.2025 07:13 β€” πŸ‘ 5    πŸ” 7    πŸ’¬ 0    πŸ“Œ 0
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We are undergoing unprecedented loss of freshwater across the planet Rising temperatures are causing water to evaporate and driving humans to extract more groundwater, which is moving freshwater from the land to the seas and creating a "continental drying" trend

β€œWe are undergoing unprecedented loss of freshwater across the planet.”

And need new leadership yesterday. :/

www.newscientist.com/article/2490...

28.07.2025 21:50 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0

@FMNH is hiring a new curator of Invertebrate Zoology!

23.07.2025 02:12 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Finally, a focus on freshwater fish Fish are disappearing in an African lake that feeds the people of four countries. Freshwater lakes may not be as vast as oceans but they are just as important.

Fish are disappearing in an African lake that feeds the people of four countries. #Freshwater lakes may not be as vast as oceans but they are just as important. #fisheries
news-decoder.com/finally-a-fo...

16.07.2025 15:10 β€” πŸ‘ 11    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
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πŸ“’ 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
πŸ‘‰ shoalconservation.org/careers/

14.07.2025 12:10 β€” πŸ‘ 4    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Freshwater sponge on a rock.

Freshwater sponge on a rock.

Freshwater sponges on unionid mussels.

Freshwater sponges on unionid mussels.

Was thrilled to find so many freshwater sponges during a practice dive in the St. Lawrence River, including some growing on unionid mussels! #freshwatersponges

13.07.2025 15:16 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Call for Support: – About BHL

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...

02.07.2025 15:55 β€” πŸ‘ 195    πŸ” 129    πŸ’¬ 8    πŸ“Œ 21
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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.

11.06.2025 13:24 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

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!

12.04.2025 04:14 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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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/...

03.04.2025 16:04 β€” πŸ‘ 22    πŸ” 15    πŸ’¬ 1    πŸ“Œ 3