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rimetfrederic.mastodon.social.ap.brid.gy
Frédéric Rimet
@rimetfrederic.mastodon.social.ap.brid.gy
39 followers 6 following 110 posts
Concerned about environmental issues and the place of people with disabilities in our society. Active member in associations of parents of childs with […]

[bridged from https://mastodon.social/@rimetfrederic on the fediverse by https://fed.brid.gy/ ]
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Reposted by Frédéric Rimet
rimetfrederic.mastodon.social.ap.brid.gy
Retour de la loutre : une bonne nouvelle de la part de la nature. Cnrs
#bonnenouvelle #nature #environment #wildelife #goodnews

https://youtu.be/jD0xr9fSZAI?si=ThZx9QQKmKZM40mI
January 23, 2026 at 10:02 PM
rimetfrederic.mastodon.social.ap.brid.gy
Retour de la loutre : une bonne nouvelle de la part de la nature. Cnrs
#bonnenouvelle #nature #environment #wildelife #goodnews

https://youtu.be/jD0xr9fSZAI?si=ThZx9QQKmKZM40mI
January 23, 2026 at 10:02 PM
Reposted by Frédéric Rimet
drangelborja.bsky.social
Some times we have good news: today enters into force the High Seas Treaty, known as the #Biodiversity Beyond National Jurisdiction Agreement
Hope for the #ocean
#OceanOptimism
#MarineEcology
#MarinePolicy
news.un.org/en/story/202...
Game-changing international ocean treaty comes into force
Almost two decades in the making, an international agreement to protect and sustainably use marine life in international waters and the international seabed is due to come into force on Saturday, mark...
news.un.org
January 17, 2026 at 9:14 AM
Reposted by Frédéric Rimet
laurencedecock1.mamot.fr.ap.brid.gy
Passionnant entretien qui pose très clairement les choses sur la question de l’interdiction des téléphones au lycée. Des réponses argumentées par des études. Quelques points de désaccord (notamment sur les vertus de PRONOTE) mais le reste est parfait.
Extraits et […]

[Original post on mamot.fr]
January 17, 2026 at 8:51 AM
rimetfrederic.mastodon.social.ap.brid.gy
Seul au monde sous la neige... ❄️😉
Une route couverte de neige monte à des chalets Vue sur une pente enneigée depuis un chalet
January 10, 2026 at 5:33 PM
Reposted by Frédéric Rimet
mastodon.mastodon.social.ap.brid.gy
Our vision is crystal clear: social spaces should belong to the people, forever. 🏡💙

No ads, no manipulative algorithms, no hidden agendas: a platform governed by and for its community.

Support Mastodon. Keep the internet in the hands of the people: Donate […]

[Original post on mastodon.social]
Three happy Mastodons on a hilltop
January 9, 2026 at 8:07 PM
rimetfrederic.mastodon.social.ap.brid.gy
Happy new year to all of you! 2026 starts really nicely with a cold clear sunset on the countryside ❄️😉#photoofthedays #naturephoto
Levé de soleil sur un champ. Les herbes sont givrée, une clôture traverse le champ Champ givré, le soleil se lève
January 1, 2026 at 8:17 AM
Reposted by Frédéric Rimet
sandrousseau.bsky.social
On sent beaucoup d’émotions et de tremblements dans votre voix quand il s’agit de taxer les riches mais par contre baisser les allocations adultes handicapés, RSA, minimum retraite là … rien.
Allez dire à un retraité qui touche 1962 € par mois qu’il est riche, allez-y, je vous regarde.
December 6, 2025 at 2:27 PM
rimetfrederic.mastodon.social.ap.brid.gy
Happy to share our new paper presenting anew version of diat.barcode reference #barcoding #dna #library for #Diatoms
Gelis, Barry-Martinet, Briand, Chonova, Cochero, Gassiole, Kahlert, Karthick, Keck, Kelly, Kochoska, Mann, Nayak, Pfannkuchen, Servulo […]

[Original post on mastodon.social]
Taxonomic tree of Diat.barcode v12. Hierarchical relationships of families according to their parent taxonomical links are represented. Size of bubbles gives the number of sequences in the corresponding families. Colors correspond to Classes: purple: Mediophyceae, red: Bacillariophyceae, green: Coscinodiscophyceae, blue: Fragilariophyceae. Ecological guild distribution in the phylogeny (based on rbcl). Black color corresponds to a sequence belonging to an ecological guild. From inner to outer circle: high-profile, low profile, motile, planktonic. Ordination biplots for Mainland France obtained from symmetric co-correspondence analysis (sCoCA). Ecological guilds are displayed in the left panel and species in the right panel. To improve the interpretation of the plots, species are colored based on their family and polygons represent the sampling sites from which they were sampled, regardless of their identification. Navicula photo F Rimet
November 27, 2025 at 12:10 PM
rimetfrederic.mastodon.social.ap.brid.gy
Happy to share our new paper by Clarisse Lemonnier et al.:
Comparison of #metabarcoding and #shotgun Sequencing Confirms the Relevance of Chloroplastic rRNA Genes to Assess Community Structure of #lake #phytoplankton […]

[Original post on mastodon.social]
Schematic resuming the different analyses done in this study, using 23S as an example. (A) Metabarcoding steps with DNA amplification, MiSeq sequencing, DADA2 pipeline and taxonomic assignment using assign. taxonomy() command and Phytool reference databases. (B) The metagenomic steps to recover taxonomic composition of phytoplankton with DNA fragmentation, NovaSeq sequencing, SortMeRNA to recover rRNA reads and taxonomic assignment with blast of the extracted rRNA reads against Phytool. (C) A fine comparison of the ASV sequence and abundance using mapping of the shotgun reads. A sequence with a colour means that it was assigned taxonomically. Comparison of the relative abundances obtained for the main phytoplankton phyla based on metabarcoding and shotgun sequencing. As the relative abundances obtained in shotgun did not differ depending on the barcode, here, values of the 23S were taken as a reference for shotgun values. R-squared and the equation of the linear model are indicated for each group and each barcode. Co-inertia analysis describing the co-structure between phytoplankton communities characterised by metabarcoding and shotgun approaches, for each marker gene (16S and 23S). The dot in the graph corresponds to metabarcoding samples and the end of the arrows to shotgun-mapping samples.
November 9, 2025 at 6:56 PM
rimetfrederic.mastodon.social.ap.brid.gy
#hautesavoie #montblanc #photoofthedays #naturephoto #nature #landscape
November 9, 2025 at 6:13 PM
Reposted by Frédéric Rimet
n1k0.mamot.fr.ap.brid.gy
> 80% of the people only need 20% of the features. Hide the rest from them and you’ll make them more productive and happy. That’s really all it takes.

that's also where progressive disclosure comes handy

https://danieldelaney.net/normal/ #ux
two tv/vcr remotes with most of their buttons taped except on/off, sound control and channels navigation
November 1, 2025 at 11:33 AM
rimetfrederic.mastodon.social.ap.brid.gy
Toujours plus hallucinant ce qu'a été capable de faire #sarkozy :
Opération "Sauver Sarko" : des familles de victimes de l'attentat du DC-10 d'UTA demandent à se constituer parties civiles dans une autre affaire visant l'ex-chef de l'Etat […]
Original post on mastodon.social
mastodon.social
October 25, 2025 at 7:42 AM
rimetfrederic.mastodon.social.ap.brid.gy
Happy to share our new paper in ISME communications:
Can genetic diversity in microalgae species be explained by climate: an overview of metabarcoding with diatoms
Kulaš, Lemmonnier, Alric, Kahlert, Trobajo, Udovič & Rimet […]

[Original post on mastodon.social]
October 21, 2025 at 10:41 AM
rimetfrederic.mastodon.social.ap.brid.gy
La grande odyssée de @batolabo a bien démarré, avec des échantillonnages d'ADNe sur plusieurs 100aines de kilometres !!

@batolabo great odyssey got off to a good start, with #edna samplings over several hundred kilometers!

Loire -> Danube odyssey
October 15, 2025 at 7:31 AM
rimetfrederic.mastodon.social.ap.brid.gy
Coming soon:
Assigning taxonomy and traits to DNA sequences of river diatoms in a region with limited taxonomic knowledge using the updated and annotated reference library Diat.barcode

Nicolosi Gelis MM; Barry-Martinet R; Briand JF; Chonova T; Cochero J […]

[Original post on mastodon.social]
October 14, 2025 at 12:06 PM
rimetfrederic.mastodon.social.ap.brid.gy
Test – Quel président de la 5e République condamné à de la prison ferme êtes-vous ?

https://www.legorafi.fr/2025/10/07/test-quel-president-de-la-5e-republique-condamne-a-de-la-prison-ferme-etes-vous/

Merci @legorafi !
#sarkozy #justice
October 11, 2025 at 10:27 AM
rimetfrederic.mastodon.social.ap.brid.gy
A new paper by Laurine Viollaz, a engineer working with me in the framework of #metabarcoding #phytoplankton #lake #france

Viollaz, L., Rimet, F., & Alric, B. (2025). Environmental DNA Approach for Lake Phytoplankton Monitoring. ACS ES&T Water. https://doi.org/10.1021/acsestwater.5c00669
The European Water Framework Directive (WFD) requires monitoring to achieve or maintain good ecological status of lakes, which support major socio-economic services. Traditionally, a morphology-based identification of individuals is used for the biomonitoring. Environmental DNA (eDNA) has significantly enhanced the evaluation of biodiversity in aquatic ecosystems. In addition, the eDNA metabarcoding approach without taxonomic-assignment (the so-called taxonomy-free approach) seems to be more promising for biomonitoring than the taxonomy-based approach. For the moment, there is a lack of empirical evidence showing the relevance of the taxonomy-free approach for assessing the ecological status of lakes based on phytoplankton, a key biological group used under the WFD. In this study, we coupled an eDNA metabarcoding approach with a niche model and an unsupervised machine learning method to assess the ecological status of 239 samples collected in 98 lakes across France. In practice, we have developed a biotic index using the abundance profiles of Amplicon Sequence Variants (ASVs) along a specific environmental gradient to assess the latter. We showed that this index, based on the taxonomy-free approach, had a strong ability to predict the ecological status of samples along an anthropogenic gradient, representing eutrophication levels.
October 6, 2025 at 1:16 PM
rimetfrederic.mastodon.social.ap.brid.gy
Happy to shore our new paper
Vlaovic, L., Lemonnier, C., Alric, B., Rimet, F., Ciric, M., Miletic, S., Milovanović, Ž., Petrović, V., & Vidakovic, D. (2025). #diatom #metabarcoding vs. Morphology in #monitoring #freshwater and saline #lakes in #serbia. Frontiers in Ecology and Evolution, 13 […]
Original post on mastodon.social
mastodon.social
September 29, 2025 at 10:59 AM
rimetfrederic.mastodon.social.ap.brid.gy
Final meeting of #biolaweb project #belgrade #serbia #metabarcoding #edna #diatom #science #nature #environment #omics #phytoplankton #macrophytes always happy to be hosted by our Serbian colleagues. Nice atmosphere and great work
Photo de rimetfrederic
September 23, 2025 at 6:35 PM
Reposted by Frédéric Rimet
ricardoparreira.com
@mariechureau.bsky.social a tout mon soutien !!!

Certains gauchistes apprécient agresser des femmes aux voix dissonantes.

Ça ne va pas, ou quoi @humanite.fr, Paul Watson ???
September 14, 2025 at 6:47 PM
Reposted by Frédéric Rimet
politipet.bsky.social
Salut @arnaultraphael.bsky.social ! Tu ferais une chose simple : un click "suivre" sur @ap.brid.gy ?

Ce click permet aux gens de Mastodon de te lire, suivre, like, repost, répondre, directement depuis leur réseau.
September 13, 2025 at 2:27 PM
Reposted by Frédéric Rimet
sandrousseau.bsky.social
Il nous faut une prospérité sans croissance. Une prospérité fondée sur la qualité de vie et non sur la consommation.
Tel est le projet d’émancipation que doit porter l’écologie de gauche.
@bfmtv.com
September 4, 2025 at 6:27 AM
Reposted by Frédéric Rimet
david-snug.mastodon.social.ap.brid.gy
#cestnicolasquipete
dessin noir sur fond marron matieré Marine lepen qui dit: c'est nous qui mange du cassoulet, c'est nicolas qui pete
September 10, 2025 at 6:05 PM
Reposted by Frédéric Rimet
jessholz.bsky.social
A rare green fluorescent flagellate, ‘swimming plant’, trails in timelapse under fluorescence microscopy. Anyone know what causes green fluorescence in marine critters? 99.9% of flagellates I find are red from chlorophyll. Sample collected from Boston harbor. #sciart #algae #plankton
September 1, 2025 at 1:30 PM