Hallie Arno
@halliearno.bsky.social
Salmon Research PhD Student in Newfoundland 🐟Population Genomics 🧬 + Anthropogenic Impacts
Reposted by Hallie Arno
Do you teach #rstats? Do your students complain about how lame and old-fashioned dplyr is? Don't worry: I have the solution for you: github.com/hadley/genzp....
genzplyr is dplyr, but bussin fr fr no cap.
genzplyr is dplyr, but bussin fr fr no cap.
GitHub - hadley/genzplyr: dplyr but make it bussin fr fr no cap
dplyr but make it bussin fr fr no cap. Contribute to hadley/genzplyr development by creating an account on GitHub.
github.com
November 6, 2025 at 11:25 PM
Do you teach #rstats? Do your students complain about how lame and old-fashioned dplyr is? Don't worry: I have the solution for you: github.com/hadley/genzp....
genzplyr is dplyr, but bussin fr fr no cap.
genzplyr is dplyr, but bussin fr fr no cap.
Reposted by Hallie Arno
Here's a new genome from the CCGP: The Lahontan Cutthroat trout (Oncorhynchus clarkii henshawi). This species, endemic to Western North America, may be in danger of extinction.
Photo: NDOW
Photo: NDOW
August 12, 2025 at 10:25 PM
Here's a new genome from the CCGP: The Lahontan Cutthroat trout (Oncorhynchus clarkii henshawi). This species, endemic to Western North America, may be in danger of extinction.
Photo: NDOW
Photo: NDOW
Reposted by Hallie Arno
Inside me there are two wolves. One of them has a 15 genome edits the other 20 genome edits. Neither of them is a dire wolf.
April 8, 2025 at 1:56 PM
Inside me there are two wolves. One of them has a 15 genome edits the other 20 genome edits. Neither of them is a dire wolf.
Reposted by Hallie Arno
Colossal Bioscience did not revive dire wolves, despite a sensationalist Time Magazine cover story.
Making genetically modified animals that are cosplaying as extinct species is not de-extinction.
Making genetically modified animals that are cosplaying as extinct species is not de-extinction.
Dire wolves were not close relatives of gray wolves. They last shared a common ancestor more than 5 million years ago. What Colossal has done is make something new and slapped a dire wolf sticker on it, as if an organism equals a hypothetical genome.
Dire Wolves Were Not Really Wolves, New Genetic Clues Reveal
The extinct giant canids were a remarkable example of convergent evolution
www.scientificamerican.com
April 7, 2025 at 3:40 PM
Colossal Bioscience did not revive dire wolves, despite a sensationalist Time Magazine cover story.
Making genetically modified animals that are cosplaying as extinct species is not de-extinction.
Making genetically modified animals that are cosplaying as extinct species is not de-extinction.
One of my first internships was with ME Sea Grant (where I learned R!), and I wouldn't be where I am now without that opportunity. This is devastating for the future of coastal/ marine management in Maine.
Maine Sea Grant changed my life when they gave me the Knauss Fellowship on Capitol Hill. I owe them my career. How will young scientist looking to use our skills to serve the public find opportunities going forward? We are killing ourselves. www.pressherald.com/2025/03/01/m...
Maine Sea Grant funding terminated as Trump administration makes cuts to NOAA
The move to discontinue the $4.5 million grant program leaves 20 employees and the Sea Grant’s programming in limbo.
www.pressherald.com
March 1, 2025 at 7:38 PM
One of my first internships was with ME Sea Grant (where I learned R!), and I wouldn't be where I am now without that opportunity. This is devastating for the future of coastal/ marine management in Maine.
Reposted by Hallie Arno
(1 of 5) JUST IN: January temperature marks a new global milestone.
Arctic sea ice coverage near record low.
bit.ly/3Qd7FdP
#StateOfClimate @climate.noaa.gov
Arctic sea ice coverage near record low.
bit.ly/3Qd7FdP
#StateOfClimate @climate.noaa.gov
February 12, 2025 at 4:18 PM
(1 of 5) JUST IN: January temperature marks a new global milestone.
Arctic sea ice coverage near record low.
bit.ly/3Qd7FdP
#StateOfClimate @climate.noaa.gov
Arctic sea ice coverage near record low.
bit.ly/3Qd7FdP
#StateOfClimate @climate.noaa.gov
Reposted by Hallie Arno
Someone should write a book about the genomics of marine organisms titled The Shellfish Gene
January 29, 2025 at 9:23 PM
Someone should write a book about the genomics of marine organisms titled The Shellfish Gene
Reposted by Hallie Arno
Remember: you didn't use RStudio for your analysis. You used R for your analysis.
January 7, 2025 at 11:45 PM
Remember: you didn't use RStudio for your analysis. You used R for your analysis.
Reposted by Hallie Arno
Maine Sea Grant – NOAA Fisheries Undergraduate Paid Internships in Sea-run Fish Research. 🦑🌎🌿🦈🐟 seagrant.umaine.edu/funding-oppo...
Maine Sea Grant - NOAA Fisheries Undergraduate Internships in Sea-run Fish Research - Maine Sea Grant -
Summer 2025 - Paid Internships This opportunity is open! Maine Sea Grant is partnering with NOAA’s Northeast Fisheries Science Center (NEFSC) to provide opportunities for undergraduates to gain experi...
seagrant.umaine.edu
January 4, 2025 at 11:20 PM
Maine Sea Grant – NOAA Fisheries Undergraduate Paid Internships in Sea-run Fish Research. 🦑🌎🌿🦈🐟 seagrant.umaine.edu/funding-oppo...
Reposted by Hallie Arno
Happy New Year!
P.S. Here’s us last night below.
P.S. Here’s us last night below.
January 1, 2025 at 5:10 PM
Happy New Year!
P.S. Here’s us last night below.
P.S. Here’s us last night below.
Merry #fishmas! Along with being adorable, Lumpsuckers are used in Atlantic Salmon #aquaculture to eat sea lice, resulting in interesting genetic differences between wild and domestic populations. #25daysOfFishmas
December 25, 2024 at 6:07 PM
Merry #fishmas! Along with being adorable, Lumpsuckers are used in Atlantic Salmon #aquaculture to eat sea lice, resulting in interesting genetic differences between wild and domestic populations. #25daysOfFishmas
Been waiting for the #Fishmas Lake Sturgeon day! 🐟 #25DaysOfFishmas
December 20, 2024 at 12:09 AM
Been waiting for the #Fishmas Lake Sturgeon day! 🐟 #25DaysOfFishmas
Reposted by Hallie Arno
Atlantic #salmon, brown #trout and their hybrids can be difficult to distinguish, especially at early life stages. This new DNA-based method can be used to screen lots of individuals to verify the species or detect hybrids! 🧪🐟
With a low-cost DNA extraction, it is less than 1 euro / sample.
With a low-cost DNA extraction, it is less than 1 euro / sample.
Fast and cost‐efficient species identification of Atlantic salmon (Salmo salar L.), brown trout (Salmo trutta), and their hybrids using a single SNP marker
A workflow for developing a cost- and time-efficient, single nucleotide polymorphism (SNP)-based assay for species and hybrid identification is described. In a reference set (n = 46), the developed a....
onlinelibrary.wiley.com
December 18, 2024 at 6:58 AM
Reposted by Hallie Arno
A study of 632 freshwater fish species from 9,989 locations finds climate warming affects fish abundances, with increases at the poleward edges of species’ distributions and declines at the equatorward edges of species’ distributions. In PNAS: www.pnas.org/doi/10.1073/...
December 11, 2024 at 8:50 PM
A study of 632 freshwater fish species from 9,989 locations finds climate warming affects fish abundances, with increases at the poleward edges of species’ distributions and declines at the equatorward edges of species’ distributions. In PNAS: www.pnas.org/doi/10.1073/...
Quick field trip attempting to retrieve temperature loggers failed due to high water levels, but views like this remind me of why I'm doing #ecology
December 9, 2024 at 8:48 PM
Quick field trip attempting to retrieve temperature loggers failed due to high water levels, but views like this remind me of why I'm doing #ecology
The Onion should buy Elsevier next
December 7, 2024 at 9:44 PM
Great image illustrating why aquatic connectivity matters *laterally* as well as up/downriver: These Central Valley juvenile chinook are the same age, but the bottom "floodplain fatty" reared in hyper-productive off-channel wetlands.
Screenshot from CalTrout webinar: www.youtube.com/watch?v=GqMJ...
Screenshot from CalTrout webinar: www.youtube.com/watch?v=GqMJ...
December 7, 2024 at 1:08 PM
The Golden Redhorse is one of my favorites from biodiversity surveys on the Buffalo River, AR! #25DaysOfFishmas
December 5, 2024 at 5:18 PM
The Golden Redhorse is one of my favorites from biodiversity surveys on the Buffalo River, AR! #25DaysOfFishmas
For those looking for undergrad/postgrad/ post-bacc #fellowsips in #ecology, I would highly recommend the NPS Scientists in Parks Program! Happy to answer questions about my experience with Great Lakes I+M www.scientistsinparks.org/apply
Apply | SIP Internships
www.scientistsinparks.org
December 5, 2024 at 2:20 PM
For those looking for undergrad/postgrad/ post-bacc #fellowsips in #ecology, I would highly recommend the NPS Scientists in Parks Program! Happy to answer questions about my experience with Great Lakes I+M www.scientistsinparks.org/apply
Reposted by Hallie Arno
We found that the stable isotopes in North Atlantic right whale (Eubalaena glacialis) baleen plates reflect the population's distribution shift to the Gulf of St. Lawrence #rightwhale #stableisotopes @altmetric.com @drhaydo.bsky.social
bit.ly/meps_722_177
bit.ly/meps_722_177
Stable isotope analysis of baleen from North Atlantic right whales Eubalaena glacialis reflects distribution shift to the Gulf of St. Lawrence
bit.ly
December 4, 2024 at 8:27 PM
We found that the stable isotopes in North Atlantic right whale (Eubalaena glacialis) baleen plates reflect the population's distribution shift to the Gulf of St. Lawrence #rightwhale #stableisotopes @altmetric.com @drhaydo.bsky.social
bit.ly/meps_722_177
bit.ly/meps_722_177
Reposted by Hallie Arno
Around this time last year @boyswillbebugs.bsky.social, @allomygale.bsky.social, @spissatella.bsky.social, @jfmclaughlin92.bsky.social and I published an open letter on supporting transgender persons in STEMM.
We have decided to open to additional signatures 🧪⚒️🦑
medium.com/@transrights...
We have decided to open to additional signatures 🧪⚒️🦑
medium.com/@transrights...
An open letter to the scientific community in the US and UK on the crisis impacting transgender…
Downloadable file
medium.com
December 4, 2024 at 5:17 PM
Around this time last year @boyswillbebugs.bsky.social, @allomygale.bsky.social, @spissatella.bsky.social, @jfmclaughlin92.bsky.social and I published an open letter on supporting transgender persons in STEMM.
We have decided to open to additional signatures 🧪⚒️🦑
medium.com/@transrights...
We have decided to open to additional signatures 🧪⚒️🦑
medium.com/@transrights...
as both a scientist and an occasional scientific illustrator i'm pretty grossed out by a journal using AI imagery. not only are AI image generators fundamentally based in plagiarism (y'know, the thing we're really not supposed to do?), they're a major source of emissions + environmental degradation
🌎The Plant Ecology of Nature-Based Solutions
A Special Feature providing:
🔸focused analysis of the #plant #ecology of NbS
🔸key insights, challenges & opportunities for future research
#COP29 #COP16Biodiversity 🧵1/13 besjournals.onlinelibrary.wiley.com/toc/13652745...
A Special Feature providing:
🔸focused analysis of the #plant #ecology of NbS
🔸key insights, challenges & opportunities for future research
#COP29 #COP16Biodiversity 🧵1/13 besjournals.onlinelibrary.wiley.com/toc/13652745...
December 2, 2024 at 5:28 PM
Reposted by Hallie Arno
Took some time to come together, but so happy to have this paper out!
November 26, 2024 at 9:28 PM
Took some time to come together, but so happy to have this paper out!
Reposted by Hallie Arno
Optimist: the cup is half full
Pessimist: the cup is half empty
Aquarist: the cup is not big enough to keep a betta
Pessimist: the cup is half empty
Aquarist: the cup is not big enough to keep a betta
Optimist: the cup is 1/2 full
Pessimist: the cup is 1/2 empty
Engineer: the cup is twice as big as needed
Pessimist: the cup is 1/2 empty
Engineer: the cup is twice as big as needed
Optimist: the cup is 1/2 full
Pessimist: the cup is 1/2 empty
Excel: the cup is January 2nd
Pessimist: the cup is 1/2 empty
Excel: the cup is January 2nd
November 24, 2024 at 8:39 PM
Optimist: the cup is half full
Pessimist: the cup is half empty
Aquarist: the cup is not big enough to keep a betta
Pessimist: the cup is half empty
Aquarist: the cup is not big enough to keep a betta