@squamiferum
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
[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
In this issue, Chen et al. present the first population genomics analyses of Indian Ocean hydrothermal vent animals, using eight populations of the scaly-foot snail (Chrysomallon squamiferum) distributed across three mid-ocean ridges. They show an asymmetric south-to-north gene flow driven by deep currents and aided by ghost populations. Their results also identify source-sink dynamics and dispersal barriers essential for conservation planning in the context of upcoming deep-sea mining. The scaly-foot snail is an iconic vent-endemic species famed for the iron-infused sclerites on its foot and functions as a flagship species in deep-sea conservation efforts.
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...😳
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!
Our paper is on the COVER of @currentbiology.bsky.social !!!!
www.cell.com/current-biol...
[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...
[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...
Nice work detailing some of the invertebrates found in cold seeps of the Sea of Japan, including a perfect scientific name for the newly described gastropod.
Not here! Very few species (like the ambient deep seafloor in Sea of Japan)…
[New Paper] Provides the first description of cold seep fauna in the Sea of Japan, revealing just a few species living in very cold water. We also found a new snail species -- named Provanna cocytus after the icy hell in Dante's "Divine Comedy"!
OPEN ACCESS: onlinelibrary.wiley.com/doi/10.1155/...
[New Paper] Presents chromosome-level genomes of two Alviniconcha hairy snail species from deep-sea hydrothermal vents! Combined with spatial transcriptomics, we reveal intricate details about its symbiosis with chemoautotrophic bacteria.
Read for FREE: rdcu.be/e38Fl
DOI: doi.org/10.1007/s114...
https://doi.org/10.1016/j.cub.2026.01.033
[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...
Big heart. Iron foot.
Words to live by.
We made a press release! This paper was the result of a large-scale international collaboration where we gathered each population of the Scaly-foot Snail like Horcruxes in the Harry Potter series... it took years but it paid off!
www.jamstec.go.jp/e/about/pres...
We also used ocean current simulations to quantify larval dispersal! As Indian Ocean vents include ISA (Int'l Seabed Authority) contract areas of 4 countries (Germany, India, S Korea, China), our data will serve as baseline for environmental impact assessments & conservation.
doi.org/10.1016/j.cu...
https://doi.org/10.1016/j.cub.2026.01.033
[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] Reveals multiple emergence of symbiosis in alvinocaridid shrimps from deep-sea hot vents and cold seeps! Many of the 22 species studied show intermediate reliance on symbionts, illuminating steps towards full reliance.
Out now in @RSocPublishing Proceedings B: doi.org/10.1098/rspb...
[New Paper] From over 8000 nominations for the new chiton species naming competition with Ze Frank -- the winner is Ferreiraella populi ("chiton of the people")! The paper officially naming this species was just published: doi.org/10.3897/BDJ.14
@sigwartae.bsky.social @oceanspecies.bsky.social
Here’s a chance to name a new species we discovered!!
[New Paper] @evolappjournal.bsky.social is a proof-of-concept that ultraconserved elements (UCEs) is also useful for population genomic analyses, in addition to phylogenomic reconstructions! We compared results from UCEs to those from RAD-seq.
OPEN ACCESS: onlinelibrary.wiley.com/doi/10.1111/...
[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...
We will live-stream a dive at the NW Rota Volcano, Mariana Arc in about an hour! This site is famous for being volcanically and hydrothermally very active.
www.youtube.com/live/hIb3QTz...
Wow! Quite a weird looking sea cucumber! and that's sayin' something for deep-sea sea cucumbers! #echinoday
Season’s Greetings, and all the best for a fantastic New Year!
良いクリスマスと新年をお迎えください。来年もどうぞよろしくお願い申し上げます。
[DIVE LIVE STREAMING] We plan to stream a ROV dive at the Quaker serpentinite seamount on the Mariana Forearc tomorrow, live from R/V KAIMEI!
Dec 23 08:00-17:00 (Japan Time), on the @JAMSTEC_PR
YouTube channel:
youtube.com/live/Nt_8P_m...
*If cancelled, will be posponed to Dec 24.
[New Paper] names Acanthotrochus verruciosseous, a new species of namako (holothurian) from >5000 m deep in the Aleutian Trench! We also present a high-resolution CT scan of the whole body, showing the ossicle distribution.
LINK to the paper in Bulletin of Marine Science: doi.org/10.5343/bms....
[New Paper] We identified the mineral coatings on deep-sea hydrothermal vent snails, linking their chemical composition to geological background and distance from active fluid orifices!
Find out more here in our Scientific Reports @springernature.com OPEN ACCESS paper: doi.org/10.1038/s415...
New deep sea ecology research in our #OpenAccess journal "Ecosphere"!⬇️
[New Paper] Reveals an unexpectedly high animal diversity at Nankai Trough cold seeps: 80 species incl. >10 new discoveries!
OPEN ACCESS in @esajournals.bsky.social Ecosphere:
doi.org/10.1002/ecs2...
This is the 1st paper from the June 2025 JAMSTEC x @oceancensus.bsky.social "SHINKAI" cruise.