Valentin de Mazancourt's Avatar

Valentin de Mazancourt

@vdemaz.bsky.social

Postdoc at Sorbonne Université and the Muséum national d'Histoire naturelle in Paris, working on the taxonomy of freshwater decapods at BOREA lab.

37 Followers  |  43 Following  |  24 Posts  |  Joined: 12.12.2024  |  1.7074

Latest posts by vdemaz.bsky.social on Bluesky

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➡ EJT Vol. 1007 (2025) #openaccessjournal
🔗 Published 2025-08-07

➡ Revision of the species of Caridina (Decapoda: Atyidae) from the Western Indian Ocean islands with description of a #newspecies

✒ @vdemaz.bsky.social et al.
🔗 DOI: doi.org/10.5852/ejt....

@crustaceansociety.bsky.social
#Decapoda

11.08.2025 12:42 — 👍 1    🔁 1    💬 0    📌 0
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Habitat selection and copper toxicity in the freshwater amphidromous shrimp Caridina multidentata Stimpson, 1860 (Decapoda: Caridea: Atyidae) Abstract. Amphidromous atyid shrimps, like Caridina multidentata Stimpson, 1860, play a crucial role in freshwater ecosystems. Despite their ecological sig

📢 NEW : Habitat selection and copper toxicity in the freshwater amphidromous shrimp Caridina multidentata Stimpson, 1860 (Decapoda: Caridea: Atyidae) par Juliette Ravaux @vdemaz.bsky.social et collab. in Journal of Crustacean Biology 🦐🦀🦐
doi.org/10.1093/JCBI...
#thecrustaceansociety #crustaceans

20.05.2025 13:02 — 👍 1    🔁 1    💬 0    📌 0
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Fascinants crustacés Nous connaissons les crustacés que nous trouvons sur la plage ou dans nos assiettes. Mais que savons nous vraiment de ces drôles de bêtes à carapace apparues à la surface de la Terre il y a plus de 50...

Podcast | Fascinants crustacés 🦐🦀🦞
À la découverte des origines des crustacés et de leurs cousins fossiles et actuels avec Marie-Béatrice Forel @ohmyostracod.bsky.social et Sylvain Charbonnier dans La Terre au carré sur @franceinter.fr ce 7 mai à 14h.
www.radiofrance.fr/franceinter/...

07.05.2025 09:04 — 👍 4    🔁 2    💬 0    📌 0

Crab faces 😍🦀

08.05.2025 10:43 — 👍 83    🔁 15    💬 3    📌 0
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Très fier de vous annoncer la publication très prochaine de ce bel ouvrage collectif sur les crustacés pour lequel j'ai contribué à plusieurs chapitres. Plus d'infos ici : buff.ly/4kgb0H2 @ohmyostracod.bsky.social @cr2p.bsky.social @borea.mnhn.fr

17.03.2025 14:17 — 👍 5    🔁 1    💬 0    📌 1
Thorn crab. Scientific name: Naxioides teatui. Carapace mounted on a dark background.

Thorn crab. Scientific name: Naxioides teatui. Carapace mounted on a dark background.

Two Japanese spider crabs. Scientific name: Macrocheira kaempferi. One is displayed on a wall, the other on a pedestal. They are massive… measuring in with a leg span of nearly 10 feet!

Two Japanese spider crabs. Scientific name: Macrocheira kaempferi. One is displayed on a wall, the other on a pedestal. They are massive… measuring in with a leg span of nearly 10 feet!

A collage of a hundred crab carapaces on a black background. The grabs are assorted sizes, colors, and species.

A collage of a hundred crab carapaces on a black background. The grabs are assorted sizes, colors, and species.

Crabs 🦀 are beautiful and I love them.

These were some of my favorites from #ExquisiteCreaturesRevealed at #omsi in Portland, OR. 🦑

22.01.2025 21:45 — 👍 40    🔁 7    💬 4    📌 0
Exceptional preservation of internal organs in a new fossil species of freshwater shrimp (Caridea: Palaemonoidea) from the Eocene of Messel (Germany) Scientific Reports - Exceptional preservation of internal organs in a new fossil species of freshwater shrimp (Caridea: Palaemonoidea) from the Eocene of Messel (Germany)

Just described a new species of fossil freshwater shrimp from the Eocene of Messel (Germany) in @SciReports with colleagues from @Senckenberg and the Hessisches Landemuseum Darmstadt. Check it out!

nature.com/articles/s4159…

28.10.2022 00:03 — 👍 0    🔁 0    💬 0    📌 0
New Insights on Biodiversity and Conservation of Amphidromous Shrimps of the Indo-Pacific islands (Decapoda: Atyidae: Caridina) | Request PDF Request PDF | New Insights on Biodiversity and Conservation of Amphidromous Shrimps of the Indo-Pacific islands (Decapoda: Atyidae: Caridina) | Amphidromous shrimps of the genus Caridina (Crustacea: Decapoda: Atyidae) are essential components of the tropical insular freshwater ecosystems.... | Find, read and cite all the research you need on ResearchGate

Very proud to announce that my latest #research on #biodiversity and #conservation of freshwater #shrimps is available on @ResearchGate:

researchgate.net/publication/34…

22.02.2021 17:11 — 👍 1    🔁 0    💬 0    📌 0
A new freshwater crab of the family Hymenosomatidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and an updated review of the hymenosomatid fauna of New Caledonia A new genus and species, Richerius marqueti gen. et sp. nov., of a crab of the family Hymenosomatidae MacLeay, 1838 are described from the inland waters of New Caledonia based on several specimens collected in two streams at altitudes of 180 m and 500 m, respectively. Richerius marqueti gen. et sp. nov. was compared to the other freshwater species known in New Caledonia, Odiomaris pilosus (A. Milne-Edwards, 1873), and to species of Amarinus Lucas, 1980, a genus comprising many freshwater species in New Zealand, Australia, Indonesia, the Philippines, and Papua New Guinea, but never recorded in New Caledonia. The barcode fragment of the COI mitochondrial gene was sequenced for seven specimens of R. marqueti gen. et sp. nov., and all sequences were deposited in GenBank. A brief and updated review of the New Caledonian marine and freshwater hymenosmatid fauna is provided.

Very proud of this new paper on a new species of freshwater crab I contributed to describe with Mme Danièle Guinot #EJT #MNHN

europeanjournaloftaxonomy.eu/index.php/ejt/…

22.06.2020 10:31 — 👍 0    🔁 0    💬 0    📌 0
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Avec le #confinement, des espèces qu'on croyait disparues font leur retour dans #Paris 😮 #nature #biodiversité

27.04.2020 13:47 — 👍 0    🔁 0    💬 0    📌 0
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Comme un air de vacances, grâce aux abribus de la #RATP patientez les pieds dans l'eau.

07.08.2019 07:57 — 👍 0    🔁 0    💬 0    📌 0
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Troll ou services pas très secrets ? 😆

16.06.2019 12:40 — 👍 0    🔁 0    💬 0    📌 0
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Today, we had the pleasure to hear Pr Philippe Keith from @UMR_BOREA @Le_Museum talking about Sicydiinae gobies for one of the Evolutionary Biology seminars here at the @mfnberlin

16.05.2019 14:18 — 👍 0    🔁 0    💬 0    📌 0
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Jules Verne vibes for the new exhibition @Le_Museum #Oceans

26.03.2019 16:17 — 👍 0    🔁 0    💬 0    📌 0
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Something you don't see everyday in Paris, a colossal squid arm found in a toothfish stomach! @Le_Museum @UMR_BOREA

07.02.2019 14:46 — 👍 0    🔁 0    💬 0    📌 0
BOITE NOIRE (Court-métrage)
Un homme se retrouve amnésique dans une salle d’interrogatoire. Avec différents flashbacks il redécouvre qui il est et compte bien retrouver qui l’a amené ici. Mais les choix qu’il a réalisé dans sa vie l’amènent progressivement à une conclusion bien plus amère. BOITE NOIRE (Court-métrage)

BOITE-NOIREvia @YouTube

youtu.be/41Y09Ns6aAg

15.12.2018 19:41 — 👍 0    🔁 0    💬 0    📌 0
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5°C dehors, c'est un temps à piquer une tête au 22e étage avec une vue panoramique sur #Paris ! #PleinCiel #Arago

22.11.2018 20:15 — 👍 0    🔁 0    💬 0    📌 0

En direct du carrelage du ministère de l'intérieur 😂

x.com/BerLu82/status…

17.11.2018 08:35 — 👍 0    🔁 0    💬 0    📌 0

Je viens de l'installer, hâte de tester ça !

x.com/Le_Museum/stat…

21.10.2018 07:05 — 👍 0    🔁 0    💬 0    📌 0

Ca se passe vendredi à 14h à @Le_Museum on vous attend nombreux !

x.com/UMR_BOREA/stat…

09.10.2018 11:08 — 👍 0    🔁 0    💬 0    📌 0
Crab escapes and turns off cooker to save Friends
An amazing video from China has emerged of a crab climbing out of a boiling hot cooking pan and turning it off, seemingly saving his three crustaceans chums. In the footage, captured in Lianyungang in Jiangsu Province, north of Shanghai, on September 5, the clever crab climbs out of a heated pan and then presses the button to turn it off, while three crabs remain in the pan. Crab escapes and turns off cooker to save Friends

Crab escapes and turns off cooker to save Friendsvia @YouTube

youtu.be/IozGzN2M0xI

08.10.2018 17:15 — 👍 0    🔁 0    💬 0    📌 0
How to raise a crab army 101 - Funny 16,218 points • 248 comments

How to raise a crab army 101via @9GAG

9gag.com/gag/aMjOLQR?re…

18.06.2018 17:17 — 👍 0    🔁 0    💬 0    📌 0

See the colleagues from @UMR_BOREA on TV!

x.com/UMR_BOREA/stat…

01.06.2018 07:56 — 👍 0    🔁 0    💬 0    📌 0
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The #ICC9 is now over, thanks to all the great pesentations, the nice discussions we may have had and see you next year!

26.05.2018 14:16 — 👍 0    🔁 0    💬 0    📌 0
9th International Crustacean Congress (ICC) : 22-25 mai 2018, Washington (Etats-Unis) | Laboratoire de biologie des organismes et des écosystèmes aquatiques Laboratoire de Biologie des Organismes et des Ecosystèmes Aquatiques

Meet us, my colleagues from @UMR_BOREA @Le_Museum and myself at the International Crustacean Congress next week in Washington D.C.#ICC9

tinyurl.com/ydd5ap8p

17.05.2018 13:18 — 👍 0    🔁 0    💬 0    📌 0

See you there then !

x.com/DoctorZen/stat…

17.05.2018 13:07 — 👍 0    🔁 0    💬 0    📌 0
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As a taxonomist, I can confirm that we spend our days staring at vials with dramatic poses in our underground collections... #BadStockPhotosOfMyJob

16.05.2018 08:03 — 👍 0    🔁 0    💬 0    📌 0

The memory would not only be stored biochemically in neurons but also as RNA. Interesting new hypothesis on the engram.

x.com/ScienceNews/st…

15.05.2018 17:04 — 👍 0    🔁 0    💬 0    📌 0

Not sure what to think about this...

Science news: Octopuses came to Earth from space as frozen eggs millions of years ago

shr.gs/mDGtDLP

15.05.2018 13:56 — 👍 0    🔁 0    💬 0    📌 0

@vdemaz is following 20 prominent accounts