iiinova — where your digital self keeps evolving

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 12/08/2026

Algal bloom swirls across the western Baltic Sea | EU Space Support Office | EU Space Policy eu-space.europa.eu/components/earth…

000 0

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 11/08/2026

Première fois que je vois un camion gazogène, en l'occurrence un #camion #berliet gazo bois...!!! Pris en photo dans le Lot #gazogene #bois #wood #truck #france

000 0

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 11/08/2026

International “State of the Climate” report confirms record-high greenhouse gases, global sea level, and ocean heat in 2025 | EurekAlert www.eurekalert.org/news-releases/11… #climate #warmingplanet #science #globalwarming

Geographical distribution of selected notable climate anomalies and events in 2025. Figure 1.1 in the State of the Climate in 2025. Special Supplement to the Bulletin of the American Meteorological Society, Vol. 107, No. 8, August 2026. https://doi.org/10.1175/2026BAMSStateoftheClimate

013 3

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 07/08/2026

Un vieux grimoire trouvé au fond de la remise... Je sens que je vais apprendre des choses (PC Jagot 1946. Ed Dangles, Paris 8e) #magie #occultism #books

Couverture d'un vieux livre de magie occulte.

Figure d'un vieux livre de magie occulte

011 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 30/07/2026

L'odyssée de @batolabo continue en Europe, avec maintenant une escale en Hongrie sur le #Danube 140 echantillons d'ADNe prélevés ! Loire -> Danube odyssey batolabo.com

échantillons d'ADNe prélevés par batolabo sur une carte d'europe

Photo prise par l'équipe Batolabo. On y voit le pont du bateau avec une voile au vent et 4 personnes

000 0

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 18/07/2026

Happy to share with you this new paper about the use of #AI and #ecological #network for #lake #monitoring Alric, B., I. Domaizon, C. Laplace-Treyture, L. Viollaz, & F. Rimet, 2026. A New Framework to Empower Ecosystem Assessment Through the Integration of […] [Original post on mastodon.social]

010 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 28/06/2026

Une belle assemblée générale de #apei_thonon 💪 Un vibrant plaidoyer pour le droit de vote des personnes #handicapees qui a été attaqué pendant les élections municipales par certaines listes 💪 L'autorepresentation a fait part des ses besoins : argent, vie […] [Original post on mastodon.social]

010 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 19/04/2026

Trop drôle que de lire ces #bd des années #70s #petillon La dent creuse. Les aventures de Jack Palmer #comics

#petillon La dent creuse. 1978. Première page

010 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 27/03/2026

This publication is the summary of 6 years developments. All tools are freely available at carrtel-collection.hub.inrae.fr/bar…

020 2

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 27/03/2026

the results of the indices are mingingfull : see the map of France with all the lakes where we assessed the ecological quality based on phytoplankton metabarcoding taxo-free indices #lake #quality #ecology #nature

Figure 5. Carte de France métropolitaine sur laquelle sont représentés les scores des plans d’eau étudiés pour le gradient environnemental de phosphore, la métrique MCA taxonomy free et l’indice MCT de topologie de réseaux écologiques.

110 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 27/03/2026

Notre nouvel article Analyse du phytoplancton par l’ADN environnemental : nouveaux outils pour évaluer la qualité écologique des plans d’eau #phytoplankton #edna #metabarcoding #lake Bravo @ clelia DURAN orcid.org/0009-0000-0450-3842 revue-set.fr/article/view/9926

Schéma des étapes de préparation et d’analyse des échantillons de phytoplancton par métabarcoding ADNe pour utilisation en bioindication.

120 2

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 01/01/2026

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

020 2

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 17/12/2025

@batolabo la grande odyssée de @batolabo se poursuit avec presque 100 échantillons récoltés Loire -> Danube odyssey batolabo.com

carte des échantillons prélevés par batolabo

BatoLabo est une grande navigation fluviale, de la Loire au Danube, à bord d’un chaland de Loire, qui participe à la défense des communs et à l’émergence de nouveaux droits pour les rivières. Ce voyage en bateau ouvre un espace de rencontre entre pratiques artistiques, savoirs scientifiques et navigation traditionnelle.

100 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 27/11/2025

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.

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.

100 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 09/11/2025

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.

010 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 21/10/2025

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]

011 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 15/10/2025

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

122 2

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 14/10/2025

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]

121 2

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 11/10/2025

Test – Quel président de la 5e République condamné à de la prison ferme êtes-vous ? www.legorafi.fr/2025/10/07/test-que… Merci @legorafi ! #sarkozy #justice

000 0

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 06/10/2025

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. 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.

061 6

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 23/09/2025

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

013 3

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 04/09/2025

Je recommande : @batolabo Pour suivre la belle aventure de BatoLabo : une navigation fluviale art-science, de la Loire au Danube, qui accompagne une initiative citoyenne européenne pour les droits des rivières (sept. 2025 – 2026). Ce grand voyage en bateau […] [Original post on mastodon.social]

022 2

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 29/08/2025

Happy to share a new paper: Phototrophic periphyton tolerance reflects in situ exposure to pharmaceuticals overtime – A translocation study using a pollution-induced community approach (PICT) In Journal of Hazardous Materials […] [Original post on mastodon.social]

003 3

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 28/08/2025

Happy to present my new paper: Stochasticity Shapes Microbial Communities in High-Altitude Lakes, Whereas Species Selection and Homogenization Dispersal Are More Important in Lowland Lakes: Case of Benthic Diatoms in Alpine Lakes […] [Original post on mastodon.social]

Ecological network showing that lowland lakes diatom species are much more co-occurent than in high altitude lakes

(a) Contribution of the ecological processes structuring diatom communities in high-altitude and lowland lakes using Stegen et al. (2013) methodology. (b) Contribution of environmental (water chemistry, hydro-morphometry) and dispersal filters (spatial distance) to explain communities variability using variance partitioning (unexplained variance: 92% for high-altitude lakes and 50% for lowland lakes).

013 3

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 15/08/2025

J'ai l'impression de prendre un coup de vieux quand je lis certaines infos... Afp tv5 monde 🤖 Des centaines d'androïdes ont enchaîné chutes saccadées et montées en puissance lors de la toute première compétition mondiale de robots humanoïdes qui a commencé […] [Original post on mastodon.social]

103 3

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 24/07/2025

Aquatic #eDNA presents gaps in data standards & connectivity. A FAIR, federated digital ecosystem with interoperable metadata is key to unlocking its full potential across Europe. 🌍🧬 🧾 Read the proposal draft by the #eDNAquaPlan team: tinyurl.com/3mdnjzxd #Science

010 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 23/07/2025

Please find our new paper in Molecular Ecology: Omics to Study and Manage Aquatic Environments: A Snapshot From the AquaEcOmics Meeting (Evian-les-Bains, 2025). onlinelibrary.wiley.com/doi/10.1111… A good summary of the […] [Original post on mastodon.social]

Sankey diagram giving the proportions of contributions (oral and poster communications) given at the AquaEcOmics meeting in Evian from March 2025, depending on the study scope and the input category. The above diagram is given for microorganisms (74 contributions) and the diagram below for macroorganisms (64 contributions).

Themes contributions given at the AquaEcOmics meeting in Evian from March 2025. The three major themes gather topics in coloured circles and are synthetised in Section 3 (Fundamental science discoveries in aquatic ecology and biology), Section 4 (Stakeholder-driven research) and Section 5 (Methodological gaps and possible solutions).

125 5

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 22/07/2025

Signée: ca défoule pour pas cher. Il faut juste retrouver les codes france connect (sueurs froides), mais après on se sent mieux :-] #duplomb #duplombdanslaile

000 0

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 18/07/2025

We have a post-doc position for 15 months in the framework of the dnaquaimg.eu project (11 countries) at UMR Carrtel carrtel.lyon-grenoble.hub.inrae.fr/… (Lake Geneva, France). If you have good skills in molecular biology, aquatic ecology […] [Original post on mastodon.social]

003 3

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 18/07/2025

A new paper with my good friend/colleague Kalman Tapolczai, K., F. Rimet, M. Ćirić, A. Ballot, C. Laplace-Treyture, & B. Alric, 2025. A novel framework for phytoplankton biomonitoring: Trait assignment of 23S rRNA sequences. Ecological Indicators 173: 113361 […] [Original post on mastodon.social]

021 2

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 18/07/2025

A new paper from a collaboration with Univ Toulon and JF Briand team Barry-Martinet, R., Pollet, T., Fay, F., Tunin-Ley, A., Turquet, J., Ghiglione, J.-F., Garnier, C., Portas, A., Burgaud, G., Rimet, F., & Briand, J.-F. (2025). Geographic Genetic Divergence […] [Original post on mastodon.social]

Interactions between diatom species in the marine environment. (A–C) Co-occurrence network analysis of diatom species associations from biofilms within the full set of sampling sites. The relative abundance of each species (nodes) is shown for the four sites and all the immersion times in each central pie chart: 2015 immersions in the Mediterranean Sea are represented by green shades (for the kinetic in Toulon) and gray (Banyuls sur Mer) and 1-month immersions in 2016 correspond to the blue (Toulon), red (Lorient), and yellow (La Reunion) quarters. The network shows statistically significant co-occurrence relationships (p < 0.05) obtained with a threshold set at 150 edges. The labels indicate the last known level of taxonomy. Keystone species (8 or more edges) are shown in bold.

000 0

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 18/07/2025

Happy to announce a new paper of my phD student Paula Gavin Gauvin, P., I. Domaizon, A. Bouchez, & F. Rimet, 2025. Environmental Matrices Need Consideration: Insights From Water and Biofilm Environmental DNA for Multi-Taxonomic Biomonitoring. Environmental […] [Original post on mastodon.social]

011 1

Frédéric Rimet @rimetfrederic.mastodon.social.ap.brid.gy · 18/07/2025

Coming soon in Mol Ecol: Omics to study and manage aquatic environments: a snapshot from the AquaEcOmics meeting (Evian-les-Bains, 2025) F Rimet, C Lemonnier, B Alric, P Beja, L Bittner, J Bylemans, F Leese, R Logares, K Meissner, F Not, L Orsini, B Paix, N […] [Original post on mastodon.social]

000 0