Trond Oskars
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trondoskars.bsky.social
Trond Oskars
@trondoskars.bsky.social
Marine biologist and taxonomist 🐚🪸 working with biodiversity and marine ecosystems.

#PhD with a creative streak.

#naturmangfold #biodiversity #taxonomy

#firstgen higher education of fisherman stock 🇧🇻

https://www.linkedin.com/in/trond-oskars
Reposted by Trond Oskars
Science and marine life folks! Does anyone on here study sea anemones (or know someone who does)? I'm particularly interested in talking to someone about the biomechanics of their tentacles and stinging cells. 🧪🦑
a close up of a sea anemone with a lot of tentacles
Alt: a close up of several sea anemones in different colors (white, yellow, brownish orange) waving their tentacles
media.tenor.com
December 2, 2025 at 7:48 PM
𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄 𝘁𝗵𝗲 𝗴𝗲𝗻𝗼𝗺𝗲 𝗼𝗳 𝗼𝗻𝗲 𝗼𝗳 𝗡𝗼𝗿𝘄𝗮𝘆’𝘀 𝗺𝗼𝘀𝘁 𝗳𝗮𝘀𝗰𝗶𝗻𝗮𝘁𝗶𝗻𝗴 𝗺𝗮𝗿𝗶𝗻𝗲 𝘀𝗽𝗲𝗰𝗶𝗲𝘀 𝗵𝗮𝘀 𝗯𝗲𝗲𝗻 𝗺𝗮𝗽𝗽𝗲𝗱?

The red sea cucumber (𝘗𝘢𝘳𝘢𝘴𝘵𝘪𝘤𝘩𝘰𝘱𝘶𝘴 𝘵𝘳𝘦𝘮𝘶𝘭𝘶𝘴) has long captured our interest.

cdnsciencepub.com/doi/10.1139/...
The genome of the holothuroid Parastichopus tremulus
The sea cucumber Parastichopus tremulus is an important holothuroid species inhabiting the eastern North Atlantic Ocean benthic zone at depths from about 20 to 3000 m. Geographical distribution is fro...
cdnsciencepub.com
December 3, 2025 at 9:46 AM
Reposted by Trond Oskars
Want to join a global 🌎 initiative to test the thermal limits of 🐟 using standardised approach? Led by @patricepottier.bsky.social, we are planning a globally distributed experiment to collect data on fish embryonic heat tolerance 🌡️. Make this experiment global!

🔗: www.thermalecologyalliance.org
October 28, 2025 at 4:04 AM
Reposted by Trond Oskars
Their ability to tolerate low oxygen levels and the regular length of day and night in the study area are also key aspects.

To read more see our paper:
www.sciencedirect.com/science/arti...

MEESO funded by @ec.europa.eu
#Ocean#TwilightZone#MesopelagicFish
#Research
#MarineEcology
Why is the Arabian Sea a hotspot for myctophids?
Myctophids are the dominant mesopelagic fishes in most of the world’s oceans. They play a key ecological role and also have a potential for harvest. W…
www.sciencedirect.com
November 27, 2025 at 9:26 AM
Reposted by Trond Oskars
In the Arabian Sea, the biomass of lanternfishes is particularly high, but dominated by only a few species.

Much of the high production of the Arabian Sea is channelled via zooplankton to the stock of lanternfishes due to the low abundance of competing small pelagic fish.
November 27, 2025 at 9:26 AM
Reposted by Trond Oskars
𝗟𝗶𝗴𝗵𝘁𝗶𝗻𝗴 𝘂𝗽 𝘁𝗵𝗲 𝗧𝘄𝗶𝗹𝗶𝗴𝗵𝘁 𝗭𝗼𝗻𝗲

Why are so many lanternfishes in the Arabian Sea?

Lanternfishes (Family Myctophidae) are one of the most common and abundant families among the fishes living in the twilight zone and play a key ecological role in the pelagic ecosystems.
November 27, 2025 at 9:26 AM
I am all in a sea of wonders. 

Dracula, Bram Stoker

The vampire squid Vampyroteuthis infernalis, it's name literally means “the vampire squid from hell.” 

Sounds like a Halloween nightmare, right?
October 25, 2025 at 8:36 AM
Reposted by Trond Oskars
🪸Marine biologist @trondoskars.bsky.social calls iNaturalist the 'Twitter for species' (let us call it Bluesky for species 😆! ) Amateurs post photos + locations of organisms. Researchers and other skilled amateurs then help ID them. The result: verified, open data on #biodiversity.
October 8, 2025 at 2:04 PM
𝗛𝗮𝗽𝗽𝘆 𝗧𝗮𝘅𝗼𝗻𝗼𝗺𝘆 𝗥𝗲𝗰𝗼𝗴𝗻𝗶𝘁𝗶𝗼𝗻 𝗗𝗮𝘆!

Yesterday I posted about how we don’t really know our biodiversity.

There are an estimated 8–11 million species on Earth.

Less than 15% are named and described.

Without names, their stories may never be told.

#NameItToSaveIt 🌐 🦑 🐙 🧪
May 23, 2025 at 3:44 PM
Reposted by Trond Oskars
May 22, 2025 at 5:55 PM
Reposted by Trond Oskars
May 22, 2025 at 6:05 PM
“𝙒𝙚 𝙨𝙝𝙤𝙪𝙡𝙙 𝙥𝙧𝙚𝙨𝙚𝙧𝙫𝙚 𝙚𝙫𝙚𝙧𝙮 𝙨𝙘𝙧𝙖𝙥 𝙤𝙛 𝙗𝙞𝙤𝙙𝙞𝙫𝙚𝙧𝙨𝙞𝙩𝙮 𝙖𝙨 𝙥𝙧𝙞𝙘𝙚𝙡𝙚𝙨𝙨 𝙬𝙝𝙞𝙡𝙚 𝙬𝙚 𝙡𝙚𝙖𝙧𝙣 𝙩𝙤 𝙪𝙨𝙚 𝙞𝙩 𝙖𝙣𝙙 𝙘𝙤𝙢𝙚 𝙩𝙤 𝙪𝙣𝙙𝙚𝙧𝙨𝙩𝙖𝙣𝙙 𝙬𝙝𝙖𝙩 𝙞𝙩 𝙢𝙚𝙖𝙣𝙨 𝙩𝙤 𝙝𝙪𝙢𝙖𝙣𝙞𝙩𝙮.”

E. O. Wilson
🐙 🦑 🌐 🌏 🧪
May 22, 2025 at 3:16 PM
Reposted by Trond Oskars
T𝗵𝗲𝗿𝗲'𝘀 𝗻𝗼 𝗰𝗼𝗹𝗱-𝘄𝗮𝘁𝗲𝗿 𝗰𝗼𝗿𝗮𝗹 𝗶𝗻 𝘁𝗵𝗲 𝗽𝘂𝗯𝗹𝗶𝗰 𝗺𝗮𝗽𝘀?

It's not that they’re really absent.

We just haven't been looking closely enough.

Here's the twist.

🧪 🐙 🦑 🌐 🌊
April 16, 2025 at 7:28 AM
“That’s here. That’s home. That’s us.”
– Carl Sagan

Sagan was referring to the tiny blue dot in the image.

A tiny blue grain.

Mostly ocean.

Teeming with weird and wonderful life.

It looks calm and blue from space.

But up close, it's messy. Fragile.

Here’s the twist:

🐙 🦑 🌐 🧪
April 22, 2025 at 8:31 AM
Microplastics are everywhere.

And have been for some time.

Caddisfly larvae have rocked them since the 70ties.

Microplastics have been in the food chain longer than many of us have been alive.

And we’re still acting like it’s news.

🌐 🦑 🐙 🧪

phys.org/news/2025-04...
Microplastics discovered in caddisfly casings from the 1970s suggest long-term contamination
A team of biologists working at the Naturalis Biodiversity Center, a research museum in the Netherlands, has found evidence of caddisfly larvae using microplastics to build their casings as far back a...
phys.org
April 18, 2025 at 8:44 PM
T𝗵𝗲𝗿𝗲'𝘀 𝗻𝗼 𝗰𝗼𝗹𝗱-𝘄𝗮𝘁𝗲𝗿 𝗰𝗼𝗿𝗮𝗹 𝗶𝗻 𝘁𝗵𝗲 𝗽𝘂𝗯𝗹𝗶𝗰 𝗺𝗮𝗽𝘀?

It's not that they’re really absent.

We just haven't been looking closely enough.

Here's the twist.

🧪 🐙 🦑 🌐 🌊
April 16, 2025 at 7:28 AM
[Local content !]

𝗠ø𝗿𝗲𝗳𝗼𝗿𝘀𝗸𝗶𝗻𝗴 𝗶𝗻𝘃𝗶𝘁𝗲𝗿𝗲𝗿 𝘁𝗶𝗹 𝗳𝗼𝗹𝗸𝗲𝗳𝗼𝗿𝘀𝗸𝗻𝗶𝗻𝗴 𝗼𝗺 𝗺𝗮𝘁𝘃𝗮𝗹𝗴.

Tidens har skrevet om arrangement vårt på Campus Kristiansund.

Les saken her: www.tk.no/setter-matva...

𝗕𝗲𝗴𝗿𝗲𝗻𝘀𝗲𝘁 𝗮𝗻𝘁𝗮𝗹𝗹 𝗽𝗹𝗮𝘀𝘀𝗲𝗿 – 𝗳ø𝗿𝘀𝘁𝗲𝗺𝗮𝗻𝗻 𝘁𝗶𝗹 𝗺ø𝗹𝗹𝗮!
#Kristiansund #citizenscience #food
Setter matvalg på dagsordenen: – Vi trenger tilbakemeldinger fra mannen i gata
Forskere vil høre med folk og innbyggere om hvorfor de tar de valgene de gjør rundt mat. Målet er å være bedre rustet på dette feltet for framtiden.
www.tk.no
April 2, 2025 at 1:10 PM
Reposted by Trond Oskars
A beautiful bubble-snail with stunning speckle galaxies in its skin. Help me ID it!

About 1cm long in tidepool, Sydney, Australia. Have it down to the Haminoeidae family so far, but would love to get it to species if possible! 🧪🦑🐙 🐌 Here's the iNat for it too:

www.inaturalist.org/observations...
March 11, 2025 at 11:30 PM
Reposted by Trond Oskars
Our latest paper just out! After almost a decade of monitoring, we find growing evidence of community distinction and change in 21st century coral recruits when compared to their mature reef counterparts. A rare work looking into succession on reefs and more!

Paper: rdcu.be/ebLaw
#MarineEcology 🌐
March 2, 2025 at 12:04 AM
𝗛𝗮𝗽𝗽𝘆 𝗣𝗼𝗸𝗲𝗺𝗼𝗻 𝗗𝗮𝘆!

Gotta love ‘em all, also the real ones!

Well, at least some are inspired by real biodiversity.

🧪🐙🦑🌐
February 27, 2025 at 12:22 PM
I’m part of the Global Ecology Starter Pack Vol. 3 !

If you’re into biodiversity, ecosystems, or environmental science, this is the place to be!

Want to join?
DM @global-ecology.bsky.social and check out the pack here: go.bsky.app/MkLHiKU

🌍 🌎 🌏 🌐 🧪 🐙 🦑
February 26, 2025 at 7:38 AM
𝗜𝗻 𝘂𝗻𝗶𝘃𝗲𝗿𝘀𝗶𝘁𝘆, 𝗜 𝘀𝗽𝗲𝗻𝘁 𝗮 𝗹𝗼𝘁 𝗼𝗳 𝘁𝗶𝗺𝗲 𝗺𝗮𝗸𝗶𝗻𝗴 𝗱!𝗰𝗸𝗽𝗶𝗰𝗸𝘀.
 
Yet, I never got reported, or kicked out.
 
Here’s the twist.
 
🦑 🐙 🧪 🌐
February 21, 2025 at 5:16 PM
Reposted by Trond Oskars
February 13, 2025 at 10:52 AM
Reposted by Trond Oskars
#CrabAZ never ignores memes. M is for Macrocheira.

This is both the largest arthropod alive (3.8 m or 12 ft leg span, only males are this extreme) and the only living species in its family. Mainly found in Japanese waters up to 600 m depth.

(Yes we know it's Thursday, sorry)

🦀🧪🦑
February 13, 2025 at 12:25 PM
Reposted by Trond Oskars
Global Ecology 🌐 starter pack vol 1 & 2 are full and curated !! ✨💚

Please share so they will fly into the blue sky 🦋🌈

Vol1 👉 bsky.app/starter-pack...

Vol2 👉 bsky.app/starter-pack...

Will start a Vol. 3 soon, please reply if you want to be in !

🌐🧪🌍🦤🍁🦑🪴🦉🐍🌾
February 12, 2025 at 11:51 AM