You are here: Home
LABORATORY OF
ENVIRONMENTAL MARINE SCIENCESUBO | CNRS | IRD | IfremerDiscover the lab
Nectalis 5LABORATORY OF
ENVIRONMENTAL MARINE SCIENCESUBO | CNRS | IRD | IfremerDiscover the lab
LABORATORY OF
ENVIRONMENTAL MARINE SCIENCESUBO | CNRS | IRD | IfremerDiscover the lab

News

Delmoges: Better understanding of accidental dolphin catches in the Bay of Biscay in order to reduce them

, ,
Read more
PreviousNext

Delmoges: Better understanding of accidental dolphin catches in the Bay of Biscay in order to reduce them

, ,
Read more
Previous news
Mastodon
Our Youtube channel

Publications

Recent publications

355235 1 apa 4 date desc 184469 https://www-iuem.univ-brest.fr/lemar/wp-content/plugins/zotpress/
%7B%22status%22%3A%22success%22%2C%22updateneeded%22%3Afalse%2C%22instance%22%3Afalse%2C%22meta%22%3A%7B%22request_last%22%3A0%2C%22request_next%22%3A0%2C%22used_cache%22%3Atrue%7D%2C%22data%22%3A%5B%7B%22key%22%3A%22P8MY7CGY%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A10525%2C%22username%22%3A%22ltdm%22%2C%22name%22%3A%22Luis%20Tito%20de%20Morais%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fltdm%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Benestan%20et%20al.%22%2C%22parsedDate%22%3A%222026-10-30%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BBenestan%2C%20L.%2C%20Massault%2C%20C.%2C%20Vigouroux%2C%20E.%2C%20Chevalier%2C%20O.%2C%20Jones%2C%20D.%20B.%2C%20Jerry%2C%20D.%20R.%2C%20%26amp%3B%20Le%20Luyer%2C%20J.%20%282026%29.%20Using%20a%20comprehensive%20donor%20and%20host%20dataset%20to%20decipher%20the%20heritability%20and%20genetic%20architecture%20of%20pearl%20traits%20in%20the%20black-lipped%20oyster%20%28Pinctada%20margaritifera%29.%20%26lt%3Bi%26gt%3BAquaculture%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B610%26lt%3B%5C%2Fi%26gt%3B%2C%20742837.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.aquaculture.2025.742837%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.aquaculture.2025.742837%26lt%3B%5C%2Fa%26gt%3B%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Using%20a%20comprehensive%20donor%20and%20host%20dataset%20to%20decipher%20the%20heritability%20and%20genetic%20architecture%20of%20pearl%20traits%20in%20the%20black-lipped%20oyster%20%28Pinctada%20margaritifera%29%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22L.%22%2C%22lastName%22%3A%22Benestan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C.%22%2C%22lastName%22%3A%22Massault%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22E.%22%2C%22lastName%22%3A%22Vigouroux%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22O.%22%2C%22lastName%22%3A%22Chevalier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22D.%20B.%22%2C%22lastName%22%3A%22Jones%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22D.%20R.%22%2C%22lastName%22%3A%22Jerry%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J.%22%2C%22lastName%22%3A%22Le%20Luyer%22%7D%5D%2C%22abstractNote%22%3A%22Since%20ancient%20times%2C%20natural%20pearls%20have%20captivated%20mankind%20for%20their%20rarity%2C%20value%20and%20beauty.%20Today%2C%20commercial%20pearl%20culture%20is%20based%20on%20implanting%20a%20seed%20nucleus%20along%20with%20mantle%20tissue%20from%20a%20donor%20oyster%20into%20the%20gonad%20of%20a%20recipient%20or%20host%20oyster.%20Due%20to%20the%20complexity%20of%20the%20biological%20system%20involved%20%28e.g.%20pearls%20are%20the%20potential%20product%20of%20two%20genomes%20from%20both%20donor%20and%20host%20oysters%29%2C%20the%20genetic%20determinants%20underlying%20pearl%20quality%20traits%20remain%20poorly%20understood.%20Our%20study%20is%20the%20first%20to%20combine%20experimental%20grafting%20with%20genome-wide%20SNP%20genotyping%20to%20investigate%20how%20genetic%20and%20environmental%20factors%20influence%20pearl%20quality%20in%20donor%20and%20host%20black-lipped%20pearl%20oysters%20%28Pinctada%20margaritifera%29.%20Pearl%20quality%20traits%20such%20as%20quality%20score%2C%20lustre%2C%20size%2C%20nacre%20thickness%2C%20weight%20and%20roundness%20were%20evaluated%20on%201821%20pearls%20originating%20from%20214%20hatchery-produced%20donors%20and%201033%20unrelated%20host%20oysters%2C%20reared%20at%20two%20distinct%20pearl%20farms.%20Using%20a%20custom%2065%20K%20SNP%20array%2C%20we%20successfully%20assigned%20the%20214%20donor%20oysters%20to%2015%20half%20and%20full-sib%20families%20and%20estimated%20genetic%20parameters.%20In%20donor%20oysters%2C%20the%20heritability%20for%20quality%20score%20and%20roundness%20was%20low%2C%20while%20lustre%20and%20nacre%20deposition%20traits%20were%20moderately%20heritable%20%28h%282%29%20%26gt%3B%200.20%29%3B%20gene-environment%20interactions%20significantly%20influenced%20lustre%20%28sigma%28GxE%29%20%3D%200.194%29%20but%20had%20a%20negligible%20impact%20on%20other%20traits.%20Genome-wide%20association%20study%20on%20the%20donor%20and%20host%20genomes%20revealed%20six%20candidate%20genes%20associated%20with%20pearl%20quality%20traits%2C%20characterized%20by%20patterns%20of%20pleiotropy%20and%20unique%20trait-specific%20variants.%20Although%20no%20interaction%20between%20donor%20and%20host%20oysters%20%28sigma%28GxH%29%20%26lt%3B%200.001%29%20was%20detected%2C%20chitin%20synthase%2C%20a%20candidate%20gene%20known%20to%20be%20involved%20in%20nacre%20formation%20in%20mollusks%2C%20contains%20SNPs%20in%20association%20with%20multiple%20pearl%20quality%20traits%20in%20both%20donor%20and%20host%20oysters.%20Prediction%20accuracy%20was%20improved%20using%20an%20in%20silico%20analysis%20involving%20the%20top-ranked%201%20K%20SNPs%20based%20on%20GWAS%20rather%20than%20using%20all%20SNPs%20for%20the%20most%20heritable%20trait%20%28lustre%29%2C%20uncovering%20that%20a%20lower%20density%20SNP%20panel%20can%20be%20used%20for%20genomic%20selection.%20Overall%2C%20these%20findings%20advance%20our%20understanding%20of%20the%20heritability%20and%20genetic%20architecture%20of%20pearl%20quality%20traits%20in%20Pinctada%20margaritifera%2C%20providing%20valuable%20insights%20that%20can%20inform%20and%20guide%20future%20breeding%20programs.%22%2C%22date%22%3A%22OCT%2030%202026%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.aquaculture.2025.742837%22%2C%22citationKey%22%3A%22benestanUsingComprehensiveDonor2026%22%2C%22url%22%3A%22%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220044-8486%2C%201873-5622%22%2C%22language%22%3A%22English%22%2C%22collections%22%3A%5B%22QICW69BQ%22%5D%2C%22dateModified%22%3A%222025-08-19T15%3A34%3A42Z%22%7D%7D%2C%7B%22key%22%3A%22U67T6AQN%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A10525%2C%22username%22%3A%22ltdm%22%2C%22name%22%3A%22Luis%20Tito%20de%20Morais%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fltdm%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Le%20Roy%20et%20al.%22%2C%22parsedDate%22%3A%222026-10-01%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLe%20Roy%2C%20P.%2C%20Lobo%2C%20F.%20J.%2C%20Duran%2C%20R.%2C%20Duarte%2C%20D.%2C%20Virat%2C%20L.%2C%20Sahabi%2C%20M.%2C%20Franzetti%2C%20M.%2C%20Grall%2C%20J.%2C%20%26amp%3B%20Garlan%2C%20T.%20%282026%29.%20Bathymetric%20ridges%20off%20Ras%20Spartel%2C%20western%20termination%20of%20the%20Strait%20of%20Gibraltar%3A%20Genetic%20considerations%20of%20singular%20shelf-margin%20morphological%20features.%20%26lt%3Bi%26gt%3BGeomorphology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B510%26lt%3B%5C%2Fi%26gt%3B%2C%20110387.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.geomorph.2026.110387%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.geomorph.2026.110387%26lt%3B%5C%2Fa%26gt%3B%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Bathymetric%20ridges%20off%20Ras%20Spartel%2C%20western%20termination%20of%20the%20Strait%20of%20Gibraltar%3A%20Genetic%20considerations%20of%20singular%20shelf-margin%20morphological%20features%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Pascal%22%2C%22lastName%22%3A%22Le%20Roy%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Francisco%20Jose%22%2C%22lastName%22%3A%22Lobo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ruth%22%2C%22lastName%22%3A%22Duran%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Debora%22%2C%22lastName%22%3A%22Duarte%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Lena%22%2C%22lastName%22%3A%22Virat%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Mohamed%22%2C%22lastName%22%3A%22Sahabi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marcaurelio%22%2C%22lastName%22%3A%22Franzetti%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jacques%22%2C%22lastName%22%3A%22Grall%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thierry%22%2C%22lastName%22%3A%22Garlan%22%7D%5D%2C%22abstractNote%22%3A%22This%20study%20reports%20for%20the%20first%20time%20the%20occurrence%20of%20a%20field%20of%20large%20bathymetric%20ridges%20documented%20along%20the%20Moroccan%20Western%20Rifan%20shelf%20margin%20in%20the%20southern%20Gulf%20of%20Cadiz%2C%20southwest%20of%20Spartel%20Headland.%20These%20ridges%20extend%20along%20the%20outer%20shelf%20and%20the%20shelf%20break%20in%20a%20highly%20dynamic%20hydrological%20context.%20The%20dataset%20consists%20of%20swath%20bathymetric%20data%2C%20Sparker%20seismic%20profiles%2C%20and%20sediment%20samples.%20This%20study%20is%20primarily%20exploratory%20in%20nature%20and%20is%20not%20constrained%20by%20direct%20ground-truth%20data.%20Nevertheless%2C%20the%20characterization%20of%20these%20previously%20undocumented%20morphologies%20provides%20important%20insights%20into%20the%20evolution%20of%20the%20shelf%20margin%20and%20justify%20discussing%20their%20possible%20origin.%20Results%20highlight%20N-S%20trending%2C%20several%20kilometres%20long%20bathymetric%20ridges%20with%20heights%20reaching%20more%20than%2020%20m.%20Their%20internal%20architecture%20reveals%20four%20generations%20of%20buried%20preserved%20ridges.%20Several%20potential%20genetic%20mechanisms%20are%20discussed%20considering%20the%20overarching%20influence%20of%20Quaternary%20sea-level%20changes%2C%20shelf-margin%20physiography%2C%20and%20%28paleo%29oceanographic%20conditions.%20The%20ridge%20morphometrics%2C%20and%20the%20spatial%20relationship%20of%20the%20most%20recent%20ridges%20with%20current%20patterns%20suggest%20that%20they%20can%20be%20interpreted%20as%20submarine%20bedforms.%20They%20may%20correspond%20either%20to%20active%20submarine%20dunes%20formed%20by%20a%20branch%20of%20the%20North%20Atlantic%20Central%20Water%20or%20to%20sand%20ridges%20inherited%20from%20lower%20sea-level%20stages.%20Conversely%2C%20the%20long-term%20preservation%20of%20buried%20ridges%20is%20also%20consistent%20with%20an%20evolutionary%20scenario%20dominated%20by%20growth%20and%20demise%20of%20cold-water%20corals.%20While%20the%20available%20data%20do%20not%20allow%20us%20to%20conclusively%20determine%20the%20nature%20of%20these%20features%2C%20we%20suggest%20that%20their%20development%20may%20be%20explained%20by%20alternative%20hydro-sedimentary%20and%20biogenic%20processes.%22%2C%22date%22%3A%22OCT%201%202026%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.geomorph.2026.110387%22%2C%22citationKey%22%3A%22leroyBathymetricRidgesRas2026%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.webofscience.com%5C%2Fapi%5C%2Fgateway%3FGWVersion%3D2%26SrcAuth%3DGetFTR%26SrcApp%3DWOS%26DestURL%3Dhttps%253A%252F%252Fct.prod.getft.io%252FY2xhcml2YXRlLGVsc2V2aWVyLE1UQXVNVEF4Tmk5cUxtZGxiMjF2Y25Cb0xqSXdNall1TVRFd016ZzMsTnpJek0ySTFaVE10WkRNNE5TMDBOV000TFRobVltSXROemt4WXpaaE5UTmhObVExLGh0dHBzOi8vd3d3LnNjaWVuY2VkaXJlY3QuY29tL3NjaWVuY2UvYXJ0aWNsZS9waWkvUzAxNjk1NTVYMjYwMDIzMDg_cGVzPXZvcg.f1BrkPR0GsKJEB7i9VxExsO0cqTEZz6BHHt1AuFVl2k%26DestApp%3DGetFTR%26SrcItemId%3DWOS%3A001786198300001%26SrcAppSID%3DEUW1ED0DD7GZC16jtlipa6LZbOy9I%26HMAC%3DVvm9aBiX%252BubIbYCh%252BZjX4i1lq5IHa1R7VuzNWkv0pL0%253D%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220169-555X%2C%201872-695X%22%2C%22language%22%3A%22English%22%2C%22collections%22%3A%5B%22QICW69BQ%22%5D%2C%22dateModified%22%3A%222026-06-15T08%3A04%3A05Z%22%7D%7D%2C%7B%22key%22%3A%22C5MJS5JA%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A10525%2C%22username%22%3A%22ltdm%22%2C%22name%22%3A%22Luis%20Tito%20de%20Morais%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fltdm%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Lopez-Rodriguez%20et%20al.%22%2C%22parsedDate%22%3A%222026-10-01%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLopez-Rodriguez%2C%20A.%2C%20Gonzalez-Gonzalez%2C%20B.%2C%20Garcia-Prieto%2C%20C.%2C%20Mas%2C%20J.%20l%2C%20Le%20Moigne%2C%20F.%20a%20c%2C%20Giering%2C%20S.%20l%20c%2C%20Hurtado-Bermudez%2C%20S.%2C%20%26amp%3B%20Villa-Alfageme%2C%20M.%20%282026%29.%20Improving%20210Po%20low%20level%20measurements%20in%20seawater.%20%26lt%3Bi%26gt%3BTalanta%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B308%26lt%3B%5C%2Fi%26gt%3B%2C%20129812.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.talanta.2026.129812%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.talanta.2026.129812%26lt%3B%5C%2Fa%26gt%3B%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Improving%20210Po%20low%20level%20measurements%20in%20seawater%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22A.%22%2C%22lastName%22%3A%22Lopez-Rodriguez%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22B.%22%2C%22lastName%22%3A%22Gonzalez-Gonzalez%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C.%22%2C%22lastName%22%3A%22Garcia-Prieto%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J.%20l%22%2C%22lastName%22%3A%22Mas%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22F.%20a%20c%22%2C%22lastName%22%3A%22Le%20Moigne%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22S.%20l%20c%22%2C%22lastName%22%3A%22Giering%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22S.%22%2C%22lastName%22%3A%22Hurtado-Bermudez%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M.%22%2C%22lastName%22%3A%22Villa-Alfageme%22%7D%5D%2C%22abstractNote%22%3A%22The%20ocean%20is%20one%20of%20the%20largest%20sinks%20of%20atmospheric%20carbon.%20Surface%20phytoplankton%20absorb%20CO2%2C%20forming%20the%20marine%20snow%20that%20sinks%20as%20a%20downward%20flux%20of%20particulate%20organic%20carbon%20%28POC%29.%20A%20fraction%20of%20this%20POC%20flux%20reaches%20the%20deep%20ocean%2C%20where%20it%20can%20be%20stored%20for%20long%20periods%20of%20time.%20Quantifying%20this%20export%20flux%20enables%20us%20to%20estimate%20the%20ocean%20carbon%20sequestration.%20One%20of%20the%20most%20widely%20used%20methods%20of%20estimating%20the%20POC%20flux%20is%20measuring%20the%20disequilibrium%20of%20the%20radioactive%20pair%20210Pb-210Po%20in%20the%20seawater%20column.%20We%20present%20an%20accurate%2C%20robust%20method%2C%20easy-to-perform%20onboard%20during%20cruises%2C%20for%20measuring%20210Po%20and%20210Pb%20in%20seawater%20using%20FeSO4%20%28Fe2%2B%29%20to%20co-precipitate%20polonium.%20This%20is%20a%20challenging%20step%20in%20seawater%20matrices%2C%20due%20to%20its%20high%20content%20in%20salt%20and%20organic%20matter%2C%20to%20which%20210Po%20is%20strongly%20bound.%20The%20method%20was%20validated%20with%20open-ocean%20samples%20collected%20on%20the%20PAP-Site%20Observatory.%20Replicate%20samples%20were%20processed%20employing%20a%20traditional%20method%20based%20on%20the%20co-precipitation%20with%20Fe%28OH%293%20%28Fe3%2B%29.%20The%20co-precipitation%20method%20using%20FeSO4%20yields%20activities%20of%20210Po%20and%20210Pb%20that%20are%20consistent%20with%20previously%20reported%20values.%20In%20contrast%2C%20when%20coprecipitation%20is%20done%20using%20Fe%28OH%293%20210Po%20is%20underestimated%20by%20an%20average%20of%2040%20%2B%5C%2F-%205%25%20compared%20to%20coprecipitation%20with%20FeSO4.%20Identical%20activity%20concentrations%20of%20210Po%20and%20210Pb%2C%20i.e.%20secular%20equilibrium%2C%20were%20expected%20in%20deep%20ocean%20waters%2C%20indicating%20the%20cease%20of%20the%20POC%20export.%20This%20was%20found%20using%20the%20FeSO4%20method%2C%20but%20a%20systematic%20deviation%20from%20the%20secular%20equilibrium%20was%20detected%20when%20precipitating%20with%20Fe%28OH%293%2C%20evidencing%20the%20210Po%20underestimation.%22%2C%22date%22%3A%22OCT%201%202026%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.talanta.2026.129812%22%2C%22citationKey%22%3A%22lopez-rodriguezImproving210PoLow2026%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.webofscience.com%5C%2Fapi%5C%2Fgateway%3FGWVersion%3D2%26SrcAuth%3DGetFTR%26SrcApp%3DWOS%26DestURL%3Dhttps%253A%252F%252Fct.prod.getft.io%252FY2xhcml2YXRlLGVsc2V2aWVyLE1UQXVNVEF4Tmk5cUxuUmhiR0Z1ZEdFdU1qQXlOaTR4TWprNE1USSxaRGs0Wm1OalpEa3RNekk1T1MwME1qQmhMVGxpTnpBdE1tVTRaRGRtWW1RMVlqSmgsaHR0cHM6Ly93d3cuc2NpZW5jZWRpcmVjdC5jb20vc2NpZW5jZS9hcnRpY2xlL3BpaS9TMDAzOTkxNDAyNjAwNDY4Nj9wZXM9dm9y.V7M7AwBLjFmPEbbqlX3UL_ivg6RvcUSC1W2PNIuExaI%26DestApp%3DGetFTR%26SrcItemId%3DWOS%3A001750252200001%26SrcAppSID%3DEUW1ED0BB7rpZuhVOXfWQPlNSFSh6%26HMAC%3DivxMkaGgCpMU3KoaqNx%252F%252BzOn5XZBFetIg1UR0JHv4VY%253D%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220039-9140%2C%201873-3573%22%2C%22language%22%3A%22English%22%2C%22collections%22%3A%5B%22QICW69BQ%22%5D%2C%22dateModified%22%3A%222026-05-22T16%3A47%3A54Z%22%7D%7D%2C%7B%22key%22%3A%227GGZG8SL%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A10525%2C%22username%22%3A%22ltdm%22%2C%22name%22%3A%22Luis%20Tito%20de%20Morais%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fltdm%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Kremer%20et%20al.%22%2C%22parsedDate%22%3A%222026-09%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BKremer%2C%20T.%2C%20d%26%23x2019%3BOrbcastel%2C%20E.%20R.%2C%20Raherimino%2C%20R.%2C%20Galgani%2C%20F.%2C%20Andrianantenaina%2C%20L.%2C%20Crucitti%2C%20T.%2C%20Rasoamananto%2C%20I.%2C%20Bidault%2C%20A.%2C%20Paul-Pont%2C%20I.%2C%20%26amp%3B%20Bouvier%2C%20T.%20%282026%29.%20Floating%20macroplastics%20concentrate%20culturable%20human%20pathogens%20but%20do%20not%20amplify%20their%20antibiotic%20resistance%20in%20a%20polluted%20tropical%20reef.%20%26lt%3Bi%26gt%3BMarine%20Pollution%20Bulletin%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B230%26lt%3B%5C%2Fi%26gt%3B%2C%20119789.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.marpolbul.2026.119789%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.marpolbul.2026.119789%26lt%3B%5C%2Fa%26gt%3B%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Floating%20macroplastics%20concentrate%20culturable%20human%20pathogens%20but%20do%20not%20amplify%20their%20antibiotic%20resistance%20in%20a%20polluted%20tropical%20reef%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thomas%22%2C%22lastName%22%3A%22Kremer%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emmanuelle%20Roque%22%2C%22lastName%22%3A%22d%27Orbcastel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Rakotovao%22%2C%22lastName%22%3A%22Raherimino%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Francois%22%2C%22lastName%22%3A%22Galgani%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Liah%22%2C%22lastName%22%3A%22Andrianantenaina%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Tania%22%2C%22lastName%22%3A%22Crucitti%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Irene%22%2C%22lastName%22%3A%22Rasoamananto%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Adeline%22%2C%22lastName%22%3A%22Bidault%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ika%22%2C%22lastName%22%3A%22Paul-Pont%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thierry%22%2C%22lastName%22%3A%22Bouvier%22%7D%5D%2C%22abstractNote%22%3A%22Marine%20macroplastics%20may%20act%20as%20reservoirs%20and%20fomites%20for%20viable%2C%20potentially%20human-pathogenic%20bacteria%20%28PHPBs%29%2C%20but%20quantitative%20evidence%20remains%20limited%2C%20especially%20in%20tropical%20ecosystems%20exposed%20to%20PHPBs%20contamination.%20Using%20113%20macroplastic%20samples%20and%2050%20paired%20seawater%20samples%20collected%20from%20two%20sites%20over%20two%20seasons%20in%20the%20Toliara%20reef%20ecosystem%20%28Madagascar%29%2C%20a%20region%20lacking%20wastewater%20management%20system%2C%20we%20aimed%20to%20quantify%20viable%20PHPBs%20and%20compare%20their%20concentration%2C%20community%20composition%2C%20and%20phenotypic%20antibiotic%20resistance.%20PHPBs%20were%20quantified%20by%20selective%20culture%2C%20isolates%20were%20identified%20by%20MALDI-ToF%20%28Matrix%20Assisted%20Laser%20Desorption%20Ionization%20-%20Time%20of%20Flight%29%2C%20and%20antibiotic%20susceptibility%20was%20assessed%20using%20standardized%20clinical%20disk-diffusion%20tests.%20Macroplastics%20harbored%20far%20higher%20PHPB%20loads%20than%20seawater%20%28mean%209.2%20%26amp%3B%20times%3B%2010%283%29%20vs%209.6%20CFU%5C%2Fg%29%20and%20supported%20more%20diverse%20and%20compositionally%20distinct%20assemblages%20that%20did%20not%20significantly%20variate%20across%20sites%20and%20seasons.%20Communities%20were%20dominated%20by%20Vibrio%20alginolyticus%20and%20Vibrio%20harveyi%20%2872%25%20of%20total%20concentration%29%2C%20followed%20by%20Bacillus%20cereus%20%2819%25%29%20and%20Micrococcus%20luteus%20%286%25%29.%20Several%20enteric%20and%20opportunistic%20taxa%20were%20detected%20at%20lower%20relative%20abundances%20%28%26lt%3B1%25%29%20but%20at%20measurable%20concentrations%20%28Enterococcus%20spp.%2C%20Klebsiella%20pneumoniae%2C%20Escherichia%20coli%29.%20Phenotypic%20antibiotic%20resistance%20profiles%20differed%20between%20macroplastics%20and%20seawater%2C%20but%20multiresistance%20levels%20remained%20high%20and%20comparable%20%28mean%20MAR%20index%20%3D%200.43%20on%20macroplastics%29.%20These%20findings%20suggest%20that%20plastics%20may%20constitute%20an%20important%20and%20potentially%20amplified%20pathway%20for%20exposure%20to%20resistant%20and%20viable%20pathogens%2C%20particularly%20in%20tropical%20coastal%20systems%20influenced%20by%20human%20activity.%22%2C%22date%22%3A%22SEP%202026%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.marpolbul.2026.119789%22%2C%22citationKey%22%3A%22kremerFloatingMacroplasticsConcentrate2026%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.webofscience.com%5C%2Fapi%5C%2Fgateway%3FGWVersion%3D2%26SrcAuth%3DGetFTR%26SrcApp%3DWOS%26DestURL%3Dhttps%253A%252F%252Fct.prod.getft.io%252FY2xhcml2YXRlLGVsc2V2aWVyLE1UQXVNVEF4Tmk5cUxtMWhjbkJ2YkdKMWJDNHlNREkyTGpFeE9UYzRPUSxZekJqTkdJMU0yTXRPRGswWlMwMFpUVXpMVGt4WkRjdE5tUmpNemt6WVdOa05URTAsaHR0cHM6Ly93d3cuc2NpZW5jZWRpcmVjdC5jb20vc2NpZW5jZS9hcnRpY2xlL3BpaS9TMDAyNTMyNlgyNjAwNTc2WD9wZXM9dm9y.EF-6BHXLiYgqGZZP6p-dk5xB150leGifkZOrtBQ1Wjo%26DestApp%3DGetFTR%26SrcItemId%3DWOS%3A001764492500001%26SrcAppSID%3DEUW1ED0BB7rpZuhVOXfWQPlNSFSh6%26HMAC%3DzCOMsVvqIYp6cMaRTTbBL7J0hBPg%252B8wxe9Ag84CAyB8%253D%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220025-326X%2C%201879-3363%22%2C%22language%22%3A%22English%22%2C%22collections%22%3A%5B%22QICW69BQ%22%5D%2C%22dateModified%22%3A%222026-05-22T17%3A04%3A38Z%22%7D%7D%5D%7D
Benestan, L., Massault, C., Vigouroux, E., Chevalier, O., Jones, D. B., Jerry, D. R., & Le Luyer, J. (2026). Using a comprehensive donor and host dataset to decipher the heritability and genetic architecture of pearl traits in the black-lipped oyster (Pinctada margaritifera). Aquaculture, 610, 742837. https://doi.org/10.1016/j.aquaculture.2025.742837
Le Roy, P., Lobo, F. J., Duran, R., Duarte, D., Virat, L., Sahabi, M., Franzetti, M., Grall, J., & Garlan, T. (2026). Bathymetric ridges off Ras Spartel, western termination of the Strait of Gibraltar: Genetic considerations of singular shelf-margin morphological features. Geomorphology, 510, 110387. https://doi.org/10.1016/j.geomorph.2026.110387
Lopez-Rodriguez, A., Gonzalez-Gonzalez, B., Garcia-Prieto, C., Mas, J. l, Le Moigne, F. a c, Giering, S. l c, Hurtado-Bermudez, S., & Villa-Alfageme, M. (2026). Improving 210Po low level measurements in seawater. Talanta, 308, 129812. https://doi.org/10.1016/j.talanta.2026.129812
Kremer, T., d’Orbcastel, E. R., Raherimino, R., Galgani, F., Andrianantenaina, L., Crucitti, T., Rasoamananto, I., Bidault, A., Paul-Pont, I., & Bouvier, T. (2026). Floating macroplastics concentrate culturable human pathogens but do not amplify their antibiotic resistance in a polluted tropical reef. Marine Pollution Bulletin, 230, 119789. https://doi.org/10.1016/j.marpolbul.2026.119789

Access the list of publications of the laboratory

Article of the month

Selective carbon credits: Market preferences and ecosystem restoration in Senegal

Abstract The voluntary carbon market is presented as a solution to fund land and ecosystem restoration in developing economies. While the empirical literature has focused on assessing its ecological effectiveness, limited attention has been…
Read more
Discover the articles of the previous months

Copyright : Laboratoire LEMAR- 2018

Login

Intranet

IUEM intranet

Directory

Contact

Legal notice

Privacy policy