Madison Earhart, PhD
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madisonearhart.bsky.social
Madison Earhart, PhD
@madisonearhart.bsky.social
postdoc at UBC researching resilience and impacts of climate change stressors in imperiled fish like white sturgeon

scientific illustrator 🎨 madisonearhart.com

#sturgeonsaturday

🏳️‍🌈✊🏼
did you know we had ~80 huge sturgeon die this year (that we know of) in 2
BC rivers? These deaths occurred during the summer when the sockeye salmon were returning

sturgeon eat many salmon at once, and this may be overloading their metabolic capacity during hot summers 😱

#sturgeonsaturday 🧪👩🏻‍🔬🌎🌐
November 15, 2025 at 11:41 PM
releasing these huuuuge sturgeon and watching them swim away is the best part of my job 🫶🏼

another week in the field complete, and one step closer to finding out what is harming these ancient fish 🧪👩🏻‍🔬🌎🌐🦑

#sturgeonsaturday
November 9, 2025 at 1:16 AM
#sturgeonsaturday 🧪👩🏻‍🔬🌎🌐

the last 2 years i’ve been investigating why these giant fish are dying across BC

and i’ve started to identify the stressors that could be driving mortality!!

if you want to learn more, check out this video: tinyurl.com/4m4xxrkh

tldr; it’s getting hot out here yall 🥵
September 27, 2025 at 5:06 PM
in the field for #sturgeonsaturday

ive spent the last 2 yrs investigating what is killing BC white sturgeon

unfortunately, these deaths continue & we’ve had over 50 adult sturgeon die in the fraser river in the last ~6 weeks

every fish i sample is another step closer to solving the mystery🧪👩🏻‍🔬🌎🌐
September 20, 2025 at 10:31 PM
hiiiii!! i work with the best dinosaur fish around, sturgeon & i would looooove to chat sturgies with you!!

check out #sturgeonsaturday for lots of my research related posts!! 🥹🥲

we caught this big mama while listening to pink pony club, so obviously #pinksturgieclub is now a thing
July 23, 2025 at 10:23 PM
we’re so back baby!!

an excellent start to the sturgeon field season today :)

here’s a 7ft sturgeon being released

#sturgeonsaturday everyday 🧪👩🏻‍🔬🌎🌐🦑
June 28, 2025 at 12:22 AM
have yall ever seen a 1day old sturgeon?? right out of the egg?

WELL NOW YOU HAVE

barely any eyes, no gills, just vibes & yes that tube is their beating heart 💓

(microscope vid so plz forgive the lighting)

#sturgeonsaturday everyday 🧪👩🏻‍🔬🌎

(p.s. get some sturgie stickers tinyurl.com/3dd65s4p)
June 5, 2025 at 3:54 PM
its #sturgeonsaturday!

did you know that some sturgeon make very long spawning migrations? Similar to salmon, some species of sturgeon migrate hundreds of miles from the sea to rivers to spawn

after navigating a long journey once they are in freshwater they will release millions of eggs! 🧪👩🏻‍🔬🌎🌐
May 24, 2025 at 8:20 PM
#sturgeonsaturday! 🧪👩🏻‍🔬🌎🌐

not only are the sturgeon in the Nechako river facing no babies, the last few years there have been unexplained mortality events in the large adults 😩 (typically at the end of summer)

Im investigating what may be causing these mortalities and the role of climate warming 🧐
April 27, 2025 at 3:31 AM
#sturgeonsaturday all week! 🧪👩🏻‍🔬🌐🌎

because there are no larvae surviving in the Nechako river, the mandated hatchery releases 2 y.o. sturgeon to increase the population

it took trial & error in deciding what size to release sturgeon, turns out small sturgeon are otter snacks 🦦

3 y.o. sturgie 👇🏼
April 25, 2025 at 11:10 PM
#sturgeonsaturday (all week!!)

you may be thinking wow what do you mean no baby Nechak sturgeon in 70 years?

i’m gonna describe some of the problems the Nechako sturgeon face and what is being done to solve these problems

so follow along (if you love sturgeon and really who doesn’t)!!

🧪👩🏻‍🔬🌐🌎
April 22, 2025 at 11:49 PM
happy #earthday!

we’re gonna do #sturgeonsaturday everyday this week!

I’m in northern BC on the Nechako river, with a super endangered population of white sturgeon with no babies seen in 70 years! 😭

I’m here to assess stressors in this population while we fish for hatchery broodstock 🧪🌎🌐👩🏻‍🔬
April 22, 2025 at 10:57 PM