Jeff Day
@jeffday.bsky.social
i like weird deep sea shit, particularly cephalopods. also metal, parasitic fungi, horror, etc.
he/him, ace, adhd (maybe autistic?)
opinions are mine and not my employer’s
he/him, ace, adhd (maybe autistic?)
opinions are mine and not my employer’s
Reposted by Jeff Day
I'm convinced squid know they are fabulous. @schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
December 30, 2025 at 7:07 PM
I'm convinced squid know they are fabulous. @schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
Reposted by Jeff Day
A spotted ratfish! These are such neat weird little guys; I didn't realize they lived in our region (west coast Canada)
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
December 31, 2025 at 12:02 AM
A spotted ratfish! These are such neat weird little guys; I didn't realize they lived in our region (west coast Canada)
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
Reposted by Jeff Day
Woohoo, squid time! @jeffday.bsky.social
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
December 30, 2025 at 4:17 PM
Woohoo, squid time! @jeffday.bsky.social
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
"hey i wonder what's been going on with the magnapinna wikipedia page since i got that list of sightings published"
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
December 30, 2025 at 8:32 PM
"hey i wonder what's been going on with the magnapinna wikipedia page since i got that list of sightings published"
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
from the fin proportions and secondary mantle fin the santa hat is nestled on we can deduce that this squid is asperoteuthis, in this essay i will -
December 24, 2025 at 6:39 PM
from the fin proportions and secondary mantle fin the santa hat is nestled on we can deduce that this squid is asperoteuthis, in this essay i will -
Reposted by Jeff Day
wasnt really paying attention to the ascent, looked over and nearly shat myself
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
December 21, 2025 at 9:47 AM
wasnt really paying attention to the ascent, looked over and nearly shat myself
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
Reposted by Jeff Day
Can't say that I've seen a Macrourid this huge before! She looks quite old. Impressive. @schmidtocean.bsky.social dive 883 #argentiniandeepseeps #MarineLife #CONICET
December 21, 2025 at 6:03 AM
Can't say that I've seen a Macrourid this huge before! She looks quite old. Impressive. @schmidtocean.bsky.social dive 883 #argentiniandeepseeps #MarineLife #CONICET
Reposted by Jeff Day
Around these parts amphipods in the family Pleustidae can be found readily by dock foulers and tide poolers who care to look. Some are as big as your thumb nail (like a mature female Thorlaksonius) while others like this Micropleustes require magnification to appreciate. #Crustmas
December 20, 2025 at 5:55 PM
Around these parts amphipods in the family Pleustidae can be found readily by dock foulers and tide poolers who care to look. Some are as big as your thumb nail (like a mature female Thorlaksonius) while others like this Micropleustes require magnification to appreciate. #Crustmas
Reposted by Jeff Day
MARI LWYD CHARITY AUCTION PART 2
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
December 14, 2025 at 2:39 PM
MARI LWYD CHARITY AUCTION PART 2
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
i hate this shit so much
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult
AI slop has made it to the deep sea.
That’s not a blobfish: Deep Sea Social Media is Flooded by AI Slop
www.southernfriedscience.com/thats-not-a-...
That’s not a blobfish: Deep Sea Social Media is Flooded by AI Slop
www.southernfriedscience.com/thats-not-a-...
That’s not a blobfish: Deep Sea Social Media is Flooded by AI Slop
Well, it finally happened. Over the last two week, my usually well-curated feeds of videos from the deep sea have been overrun with AI slop masquerading as authentic images of strange and delightfu…
www.southernfriedscience.com
December 20, 2025 at 2:53 AM
i hate this shit so much
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult
Reposted by Jeff Day
December 19, 2025 at 10:28 PM
Reposted by Jeff Day
Seaweed pressing as an art and a science: our newly reestablished herbarium collection at Scripps and the history behind it #Phycology
An art and a science: Scripps Oceanography showcases 5,000 seaweed pressings
UC San Diego’s Smith Seaweed Ecology Lab is digitizing its collection of more than 5,000 pressings and making it accessible to the public
www.sandiegouniontribune.com
December 9, 2025 at 6:36 PM
Seaweed pressing as an art and a science: our newly reestablished herbarium collection at Scripps and the history behind it #Phycology
every time this photo gets recirculated with an incorrect ID a marine biologist dies a little inside
This picture has been making the rounds again, and is being misidentified again.
This is a GOOSEFISH.
This is NOT a tasselled wobbegong shark.
It’s a great pic. I get why people are very excited about it. But it’s as easy to give it the right name as the wrong one.
fullfact.org/online/tasse...
This is a GOOSEFISH.
This is NOT a tasselled wobbegong shark.
It’s a great pic. I get why people are very excited about it. But it’s as easy to give it the right name as the wrong one.
fullfact.org/online/tasse...
December 9, 2025 at 6:55 PM
every time this photo gets recirculated with an incorrect ID a marine biologist dies a little inside
Reposted by Jeff Day
According to this tweet I’ve removed the otoliths from 6 wobbegongs in the last couple of days, which is surprising since sharks don’t have otoliths!
December 8, 2025 at 4:45 PM
According to this tweet I’ve removed the otoliths from 6 wobbegongs in the last couple of days, which is surprising since sharks don’t have otoliths!
Reposted by Jeff Day
Impacts of an industrial deep-sea mining trial on macrofaunal biodiversity www.nature.com/articles/s41...
Impacts of an industrial deep-sea mining trial on macrofaunal biodiversity - Nature Ecology & Evolution
A species-level dataset of sediment-dwelling macrofauna, sampled 2 years before and 2 months after a test of a commercial deep-sea mining machine, reveals losses of macrofaunal density and species ric...
www.nature.com
December 5, 2025 at 5:00 PM
Impacts of an industrial deep-sea mining trial on macrofaunal biodiversity www.nature.com/articles/s41...
Reposted by Jeff Day
little jelly, big parasite
Hyperia riding inside (maybe) Solmundaegina nematophora
🐙🦑
Hyperia riding inside (maybe) Solmundaegina nematophora
🐙🦑
November 30, 2025 at 8:30 AM
little jelly, big parasite
Hyperia riding inside (maybe) Solmundaegina nematophora
🐙🦑
Hyperia riding inside (maybe) Solmundaegina nematophora
🐙🦑
Reposted by Jeff Day
Reposted by Jeff Day
The next dragon “mutation” is Whale Fall!
November 27, 2025 at 4:55 PM
The next dragon “mutation” is Whale Fall!
Reposted by Jeff Day
November 27, 2025 at 1:00 PM
Reposted by Jeff Day
These Enoploteuthid are so colorful. Nice look at the chromatophores. @schmidtocean.bsky.social dive 874 #asgardarchaea #MarineLife
November 27, 2025 at 3:57 PM
These Enoploteuthid are so colorful. Nice look at the chromatophores. @schmidtocean.bsky.social dive 874 #asgardarchaea #MarineLife
Reposted by Jeff Day
Amazing look at a Erenna siphonophore. @schmidtocean.bsky.social dive 874 #asgardarchaea #MarineLife
November 27, 2025 at 4:56 PM
Amazing look at a Erenna siphonophore. @schmidtocean.bsky.social dive 874 #asgardarchaea #MarineLife
Reposted by Jeff Day
November 27, 2025 at 4:32 PM
Reposted by Jeff Day
Hey just fyi, I have a shop and could use a few bucks if you want stickers or pins or other fun little things I’ve designed.
blackmudpuppy.myshopify.com
blackmudpuppy.myshopify.com
BlackMudpuppy
BlackMudpuppy
blackmudpuppy.myshopify.com
November 25, 2025 at 3:51 PM
Hey just fyi, I have a shop and could use a few bucks if you want stickers or pins or other fun little things I’ve designed.
blackmudpuppy.myshopify.com
blackmudpuppy.myshopify.com
wake up babe, new taningia observation dropped
one of my faves, great piloting by the ROV folks at @schmidtocean.bsky.social
one of my faves, great piloting by the ROV folks at @schmidtocean.bsky.social
ROV SuBastian pilots need raises because CAN YOU SEE IT?! ROV SuBastian in the eye of this Taningia! @schmidtocean.bsky.social dive 871 #asgardarchaea #MarineLife
November 26, 2025 at 11:06 PM
wake up babe, new taningia observation dropped
one of my faves, great piloting by the ROV folks at @schmidtocean.bsky.social
one of my faves, great piloting by the ROV folks at @schmidtocean.bsky.social