C. Chen @ Jamsteeeec
@squamiferum.bsky.social
Deep-sea biologist / Malacologist @JAMSTEC and @Senckenberg. Chemosynthesis-based ecosystems. 海洋生物学者・深海・軟体動物・化学合成生態系。 Website: https://squamiferum.net See the collection: https://www.conchology.be/?t=92
Article by @oceancensus.bsky.social highlighting our recent publications! oceancensus.org/new-life-in-...
New Life in Japan's Deep Sea: Dr Chong Chen's Discoveries from the Ocean Census–JAMSTEC Expedition
Among the expedition's most recent scientific outcomes are studies led by Dr Chong Chen, Senior Scientist with Tenure at JAMSTEC.
oceancensus.org
[New Paper] Meet Isorropodon fragilis, a new species of vesicomyid clam discovered from a deep-sea cold seep 4600 m deep in the Nankai Trough, Japan -- during the JAMSTEC x @oceancensus.bsky.social "Shinkai" expedition last year! Out now in Venus, read for FREE: doi.org/10.18941/ven...
New IUCN Red List update today includes a comprehensive assessment of ALL hydrothermal vent endemic molluscs… and 125/201 (62%) species are THREATENED WITH EXTINCTION from DEEP-SEA MINING! 72 (37%) are Endangered / Critically Endangered. More: www.reuters.com/legal/litiga... @sscmarine.bsky.social
Deep-sea mining threatens molluscs holding promise for science, Red List shows
Over half of mollusc species that cluster around underwater vents and hold promising potential for medicine and technology are at risk of going extinct due to increasing deep-sea mining, the world's ...
reuters.com
[New Paper] @zoojlinnsoc.bsky.social names 4 new genera and 5 new species of deep-sea xenophyophores — gigantic single-celled foraminiferal protists that can grow to over 20 cm in size! They are prominent but mysterious inhabitants of abyssal plains. OPEN ACCESS: doi.org/10.1093/zool...
Yes! Read our paper in Ecology here: www.researchgate.net/publication/... doi.org/10.1002/ecy....
(PDF) Laubierinid snails are associates of crinoids and a modern analogue of Paleozoic platyceratids
PDF | On Mar 7, 2025, Chong Chen and others published Laubierinid snails are associates of crinoids and a modern analogue of Paleozoic platyceratids | Find, read and cite all the research you need on ...
researchgate.net
Chris Mah@echinoblog.bsky.social · 2mo agoSWEET! GFOE has posted a highlight video of those LIVING snails on stalked crinoids! Analogous to platyceratid snails on Paleozoic crinoids! This was described by @squamiferum.bsky.social a year or so ago! #fossilFriday youtu.be/Gsb3ovXDpLM?...
[New Paper] Describes and names a new species of cleftclam: Thyasira okutanii! It was discovered from deep-sea cold seeps in the Pacific coast of Japan during the JAMSTEC x @oceancensus.bsky.social expedition last year. Out now in The Nautilus, read for FREE: www.researchgate.net/publication/...
[New Paper] Our paper reporting the finding of active chimneys and chemosynthesis-based animal community on Quaker Seamount, Mariana Forearc is now published in Marine Biodiversity! Read for FREE: rdcu.be/fl6VE doi.org/10.1007/s125...
C. Chen @ Jamsteeeec@squamiferum.bsky.social · 7mo ago[New Preprint] 3 days ago, we had a dive at Quaker Seamount -- and today we report the first results! We discovered a serpentinite-hosted seep ecosystem there + the first visible discharge of geofluids. Read for FREE: doi.org/10.64898/202... Dive video: www.youtube.com/watch?v=EMwp...
Article on the Endangered Scaly-foot Snail from Scientific American @scientificamerican.com.web.brid.gy ! www.scientificamerican.com/article/cele...
To celebrate Endangered Species Day, meet the scaly-foot snail, the most metal animal in the world
This snail became the first animal living on deep-sea hydrothermal vents to be added to the IUCN Red List of Threatened Species—it also turns poisonous sulfur into armor
scientificamerican.com
New bizarre deep-sea life history documented in #TheScientificNaturalist 👇
C. Chen @ Jamsteeeec@squamiferum.bsky.social · 2mo ago[New Paper] in Ecology @esajournals.bsky.social reports a remarkable limpet feeding exclusively on chitinous tubes of deep-sea tubeworms! Chitin may be key energy reserves in the deep. New species in the family Osteopeltidae previously only known from whale fall. OPEN ACCESS: doi.org/10.1002/ecy....
Incredible new snail discovered that eats the tubes of deep sea worms (!!)
C. Chen @ Jamsteeeec@squamiferum.bsky.social · 2mo ago[New Paper] in Ecology @esajournals.bsky.social reports a remarkable limpet feeding exclusively on chitinous tubes of deep-sea tubeworms! Chitin may be key energy reserves in the deep. New species in the family Osteopeltidae previously only known from whale fall. OPEN ACCESS: doi.org/10.1002/ecy....
[New Paper] in Ecology @esajournals.bsky.social reports a remarkable limpet feeding exclusively on chitinous tubes of deep-sea tubeworms! Chitin may be key energy reserves in the deep. New species in the family Osteopeltidae previously only known from whale fall. OPEN ACCESS: doi.org/10.1002/ecy....
[New Paper] We named a new species of vesicomyid clam, Waisiuconcha takashii, from deep-sea cold seeps in Nankai Trough, Japan and Mariana Forearc! This species is named after the late Japanese malacologist Takashi Okutani (1931-2025). Out now in Zootaxa: doi.org/10.11646/zoo...
A new species of chemosymbiotic clam (Bivalvia: Vesicomyidae) from the Nankai Trough and Mariana Forearc | Zootaxa
doi.org
[New Paper] We assembled the chromosome-level whole genome of the deep-sea tubeworm Lamellibrachia columna! Part of the Darwin Tree of Life project aiming to sequence 70000 eukaryotic genomes. Published @sangerinstitute.bsky.social Wellcome Open Research, OPEN ACCESS: doi.org/10.12688/wel...
[New Paper] We combine multiple isotopic analyses (amino acid+bulk stable isotopes, radiocarbon) to reveal the calamyzine worm Shinkai semilonga at a cold seep feeds directly on the gill of its host vesicomyid clam Archivesica kawamurai! OPEN ACCESS in Marine Ecology: doi.org/10.1111/maec...
[New Paper] Names two new cleftclam species in the genus Thyasira from serpentine seeps on seamounts of Mariana Forearc! Both probably host chemosymbiotic bacteria. Out now in Molluscan Research, FREE-to-read link for the first 50 readers: www.tandfonline.com/eprint/7FEDH... doi.org/10.1080/1323...
[New Paper] @cp-trendsecolevo.bsky.social presents the concept of the SOSA @oceanspecies.bsky.social project, pushing for the acceleration of marine conservation through the synergistic interactions among a "triad": Taxonomy, Red Listing, and Public Engagement! OPEN ACCESS: doi.org/10.1016/j.tr...
[New Paper] @royalsocietypublishing.org Biology Letters presents a global barcoding (180 individuals) of the deep-sea snail genus Phymorhynchus from hot vents & cold seeps, revealing few species with very broad and sometimes cosmopolitan distributions! OPEN ACCESS: doi.org/10.1098/rsbl...
Scientists have uncovered five new species of deep-sea #limpets in the family Lepetodrilidae thriving around deep-sea hydrothermal vents along three underwater mountain chains in the Indian Ocean: royalsocietypublishing.org/rsos/article... @squamiferum.bsky.social #RSOS
The Scaly-foot Snail ENDANGERED from deep-sea mining is now competing in the Uproar Conservation Challenge by Indianapolis Zoo and IUCN! VOTE NOW and help the Scaly-foot Snail win the $10,000 grand prize towards its conservation: www.indianapoliszoo.com/uproar-conse...
Uproar Conservation Challenge
Help vote to save endangered species with the Uproar Conservation Challenge. Each round a species moves on to compete for the big prize!
indianapoliszoo.com
Results of deep-sea surveys surrounding methane seeps—out in "Ecosphere" ⤵️
C. Chen @ Jamsteeeec@squamiferum.bsky.social · 5mo agoWe made a press release!
NEWS: Scientists from the Ocean Census and JAMSTEC have discovered 38 new species including deep sea polychaetes living in symbiosis with a marine sponge, ribbon worms and squat lobsters. Read more: oceancensus.org/press-releas...
Japan’s Deep Ocean Reveals Dozens of New Species from Landmark 2025 Nippon Foundation–Nekton Ocean Census – JAMSTEC Expedition
Following the Ocean Census-JAMSTEC expedition, scientists have confirmed the discovery of 38 new species and identified 28 further potential new species across two of Japan’s most understudied deep-sea regions: the Nankai Trough and the Shichiyo Seamount Chain.
oceancensus.org
[New Paper] @molecology.bsky.social Resources presents "VEHoP", a new bioinformatics pipeline that can infer protein-coding regions from a diverse NGS data types (mixed OK!) and automate phylogenomic inferences! OPEN ACCESS: doi.org/10.1111/1755... @yunlong-li.bsky.social @kmkocot.bsky.social
[New Paper] @molecology.bsky.social Resources presents "VEHoP", a new bioinformatics pipeline that can infer protein-coding regions from a diverse NGS data types (mixed OK!) and automate phylogenomic inferences! OPEN ACCESS: doi.org/10.1111/1755... @yunlong-li.bsky.social @kmkocot.bsky.social
Reliable Inference of Phylogenomic Relationship via Assembly‐Based Strategy Accommodating Raw Reads and Proteins
Phylogenomics is a transformative approach in systematics, conservation biology, and biomedical research, enabling the inference of evolutionary relationships by leveraging hundreds to thousands of g...
doi.org
NEW Issue is out!👇 www.cell.com/issue/S0960-... As the world is being plunged into the abyss, we bring you some abyssal scaly-footed snails from the deep ocean. www.cell.com/current-biol... Plus it's #MolluscMonday
The sea pangolin! Now you tell us...😳
Rebecca R Helm@rebeccarhelm.bsky.social · 5mo agoDon't be a loser deep-sea snails with a yellow shells, be the snail the white arrow is pointing to: a black iron-clad snail with swords on your skin, capable of withstanding crushing temperatures and pressures. Don't be an average snail. Be the metal snail. Be the "sea pangolin"
Chrysomallon squamiferum: what an amazing example of variation in appearance! ‼️Danger: deep ocean drilling can have unpredictable damaging effects on deep-sea biodiversity. 🔸the deep-sea might be far but perturbations occurring there are felt globally!
C. Chen @ Jamsteeeec@squamiferum.bsky.social · 5mo agoOur paper is on the COVER of @currentbiology.bsky.social !!!! www.cell.com/current-biol...
Our paper is on the COVER of @currentbiology.bsky.social !!!! www.cell.com/current-biol...
C. Chen @ Jamsteeeec@squamiferum.bsky.social · 6mo ago[New Paper] @currentbiology.bsky.social presents our population genomics study of the iconic Scaly-foot Snail: 125 genomes from 8 Indian Ocean hot vents! Deep currents drive South→North gene flow, while transform faults act as dispersal barriers. READ FOR FREE: authors.elsevier.com/c/1mbW73QW8S...
[New Paper] @science.org Science Advances reveals mechanisms of chemosymbiosis in the shallow-water clam Thyasira tokunagai, with carbon fixation rates estimated using radiocarbon. Thyasira clams are widespread globally -- a great model to study chemosymbiosis! OPEN ACCESS: doi.org/10.1126/scia...
Intricate chemosymbiosis in a widespread shallow-water thyasirid clam
Widespread shallow-water thyasirid clams show metabolic integration with sulfur-oxidizing symbionts.
doi.org
[New Paper] is on the COVER of @RSocPublishing Royal Society Open Science! We name 5 new species of hot vent limpets from Indian Ocean -- phylogenetics indicate this family used Indian Ocean as a corridor to disperse from Pacific to Atlantic. OPEN ACCESS: royalsocietypublishing.org/rsos/article...
