Actualités

Delmoges : Mieux comprendre les captures accidentelles de dauphins dans le golfe de Gascogne pour pouvoir les réduire.

actualité à la Une, Actualité accueil, actualités

Thomas Burel et Jacques Grall conseillers d’un documentaire sur ARTE

actualité à la Une, Actualité accueil, actualités, presse et media

Précédent Suivant

Trophées de la valorisation UBO 2026 : des chercheurs du LEMAR récompensés

actualité à la Une, Actualité accueil, actualités

Inauguration de la chaire partenariale OCEAN LEAVES

actualité à la Une, Actualité accueil, actualités

Le ballet journalier des organismes marins

actualité à la Une, Actualité accueil, actualités, Arts et sciences

Typologie des habitats benthiques de Saint-Pierre et Miquelon

actualité à la Une, Actualité accueil, actualités, publication

Semaines arts et sciences de la ville de Plouzané

Actualité accueil, actualités, Arts et sciences

2ème réunion annuelle du RT ECHOS

Actualité accueil, actualités

Actualités précédentes

Notre compte LinkedIn

Notre chaine Youtube

Publications

Publications récentes

355235 1 apa 4 date desc 184466 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%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%22%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%22395B96MA%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%22Du%20et%20al.%22%2C%22parsedDate%22%3A%222026-07%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%3BDu%2C%20J.%2C%20Xu%2C%20H.-F.%2C%20Gauthier%2C%20A.%2C%20Beisner%2C%20B.%20E.%2C%20Lavaud%2C%20J.%2C%20%26amp%3B%20Juneau%2C%20P.%20%282026%29.%20Influence%20of%20light%20intensity%20on%20the%20toxicity%20of%20herbicides%2C%20alone%20or%20in%20mixture%2C%20to%20freshwater%20phytoplankton.%20%26lt%3Bi%26gt%3BWater%20Biology%20and%20Security%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B5%26lt%3B%5C%2Fi%26gt%3B%283%29%2C%20100507.%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.watbs.2025.100507%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.watbs.2025.100507%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%22Influence%20of%20light%20intensity%20on%20the%20toxicity%20of%20herbicides%2C%20alone%20or%20in%20mixture%2C%20to%20freshwater%20phytoplankton%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Juan%22%2C%22lastName%22%3A%22Du%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Hai-Feng%22%2C%22lastName%22%3A%22Xu%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Gauthier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beatrix%20E.%22%2C%22lastName%22%3A%22Beisner%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Johann%22%2C%22lastName%22%3A%22Lavaud%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Philippe%22%2C%22lastName%22%3A%22Juneau%22%7D%5D%2C%22abstractNote%22%3A%22Light%20intensity%20directly%20affects%20phytoplankton%20and%20can%20alter%20the%20toxicity%20of%20phytotoxic%20pollutants%20present%20in%20natural%20water%20bodies.%20Light%20fluctuation%20in%20aquatic%20ecosystems%20often%20occurs%20as%20a%20function%20of%20water%20turbidity%2C%20water%20movement%2C%20cloud%20cover%2C%20and%20seasonality.%20Atrazine%20and%20simazine%20are%20commonly%20used%20herbicides%20that%20inhibit%20photosynthesis%2C%20posing%20significant%20risks%20to%20aquatic%20primary%20producers%2C%20and%20may%20be%20found%20simultaneously%20in%20aquatic%20ecosystems.%20The%20interactions%20between%20light%20and%20herbicide%20mixtures%20on%20phytoplankton%20growth%20and%20physiological%20state%20are%20poorly%20understood.%20Therefore%2C%20we%20addressed%20the%20toxicity%20of%20the%20herbicides%2C%20atrazine%20and%20simazine%20%28individually%20and%20mixed%29%2C%20on%20the%20growth%20and%20photosynthetic%20activity%20of%20three%20freshwater%20phytoplankton%20under%20three%20light%20intensities.%20We%20found%20that%20the%20toxic%20effects%20of%20single%20and%20mixed%20herbicides%20are%20species-specific%20and%20significantly%20modulated%20by%20light%20intensity%2C%20with%20synergistic%20effects%20observed%20for%20herbicide%20mixtures%20under%20high%20light%20conditions.%20Atrazine%20and%20simazine%20%28individually%20and%20mixed%29%20toxicities%20on%20photosynthesis%20were%20greater%20for%20the%20three%20species%20grown%20under%20low%20light%20than%20under%20very%20low%20light.%20However%2C%20high-light%20adapted%20strains%20of%20M.%20aeruginosa%20were%20less%20sensitive%20to%20single%20and%20mixed%20herbicides%20than%20those%20adapted%20to%20low-%20and%20very%20low-light%20conditions.%20Under%20low-%20and%20high-light%20conditions%2C%20the%20photoprotective%20ability%20was%20extremely%20sensitive%20to%20the%20inhibitory%20effects%20of%20atrazine%20and%20simazine%2C%20individually%20and%20when%20mixed.%20Understanding%20these%20interactions%20is%20important%20because%20microalgae%20form%20the%20base%20of%20aquatic%20food%20webs%20and%20their%20impairment%20can%20have%20cascading%20effects%20on%20ecosystems.%20These%20findings%20underscore%20the%20importance%20of%20considering%20multiple%20environmental%20stressors%20in%20assessing%20the%20ecological%20risks%20of%20herbicides%2C%20highlighting%20potential%20impacts%20on%20aquatic%20primary%20productivity.%22%2C%22date%22%3A%22JUL%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.watbs.2025.100507%22%2C%22citationKey%22%3A%22duInfluenceLightIntensity2026%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%252FY2xhcml2YXRlLGVsc2V2aWVyLE1UQXVNVEF4Tmk5cUxuZGhkR0p6TGpJd01qVXVNVEF3TlRBMyxOalF5TUdNeVptSXRZalk1T0MwMFpqSTRMVGszWW1VdE5ETmlNakkyTlRZNU1tUXosaHR0cHM6Ly93d3cuc2NpZW5jZWRpcmVjdC5jb20vc2NpZW5jZS9hcnRpY2xlL3BpaS9TMjc3MjczNTEyNTAwMTUwNz9wZXM9dm9y.nG7vNwAYzvFKwLVsH0triuOpKS3b4k1qWaTHiNJfBAc%26DestApp%3DGetFTR%26SrcItemId%3DWOS%3A001721290700001%26SrcAppSID%3DEUW1ED0B1D5Z26HLJAHTdYd8xzY2A%26HMAC%3DdoBjDZwAm69ms%252BqzwzQMZnHC7PgGZtntqX9PW41OAU8%253D%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%222097-4132%2C%202772-7351%22%2C%22language%22%3A%22English%22%2C%22collections%22%3A%5B%22QICW69BQ%22%5D%2C%22dateModified%22%3A%222026-03-30T10%3A37%3A43Z%22%7D%7D%2C%7B%22key%22%3A%22ZJUP7HAL%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%22Santana%20et%20al.%22%2C%22parsedDate%22%3A%222026-06%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%3BSantana%2C%20J.%20L.%2C%20Eduardo%2C%20L.%20N.%2C%20Souza-Filho%2C%20J.%20F.%2C%20Aragao%2C%20C.%20E.%2C%20Andrade%2C%20R.%20M.%2C%20Figueiredo%2C%20G.%20G.%20A.%20A.%2C%20Le%20Loc%26%23x2019%3Bh%2C%20F.%2C%20%26amp%3B%20Bertrand%2C%20A.%20%282026%29.%20Vertical%20migration%2C%20trophic%20structure%2C%20and%20ecological%20strategies%20of%20deep-pelagic%20crustaceans%20across%20contrasting%20systems%20in%20the%20western%20tropical%20Atlantic.%20%26lt%3Bi%26gt%3BDeep-Sea%20Research%20Part%20I-Oceanographic%20Research%20Papers%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B229%26lt%3B%5C%2Fi%26gt%3B%2C%20104680.%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.dsr.2026.104680%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.dsr.2026.104680%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%22Vertical%20migration%2C%20trophic%20structure%2C%20and%20ecological%20strategies%20of%20deep-pelagic%20crustaceans%20across%20contrasting%20systems%20in%20the%20western%20tropical%20Atlantic%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julianna%20L.%22%2C%22lastName%22%3A%22Santana%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Leandro%20Nole%22%2C%22lastName%22%3A%22Eduardo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jesser%20F.%22%2C%22lastName%22%3A%22Souza-Filho%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Carlos%20Eduardo%22%2C%22lastName%22%3A%22Aragao%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Renan%20M.%22%2C%22lastName%22%3A%22Andrade%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gabriela%20G.%20A.%20A.%22%2C%22lastName%22%3A%22Figueiredo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Francois%22%2C%22lastName%22%3A%22Le%20Loc%27h%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Arnaud%22%2C%22lastName%22%3A%22Bertrand%22%7D%5D%2C%22abstractNote%22%3A%22Deep-pelagic%20crustaceans%20are%20integral%20to%20ocean%20functioning%2C%20yet%20their%20ecological%20roles%20remain%20critically%20understudied%2C%20increasingly%20vulnerable%2C%20and%20often%20oversimplified%20in%20global%20models.%20Here%2C%20we%20investigate%20the%20vertical%20distribution%2C%20migratory%20behaviour%2C%20and%20trophic%20ecology%20of%20deep-pelagic%20macrocrustaceans%20%28%26gt%3B2%20cm%3B%20from%20the%20surface%20to%201200%20m%20depth%29%20across%20two%20ecologically%20contrasting%20regions%20of%20the%20western%20tropical%20Atlantic%3A%20an%20oligotrophic%20northeastern%20sector%20off%20Brazil%20and%20a%20more%20productive%20northern%20sector%20influenced%20by%20the%20Amazon%20River%20plume.%20Based%20on%20net%20sampling%20and%20stable%20isotope%20analyses%20%28delta%20C-13%20and%20delta%20N-15%29%2C%20we%20observed%20distinct%20trophic%20positions%20and%20vertical%20niche%20occupation%20among%20the%20studied%20taxa%2C%20reflecting%20clear%20patterns%20of%20functional%20and%20spatial%20differentiation.%20Our%20results%20also%20reveal%20strong%20regional%20contrasts%20in%20food%20web%20structure%3A%20the%20oligotrophic%20region%20exhibited%20broader%20trophic%20ranges%20and%20greater%20isotopic%20segregation%2C%20likely%20reflecting%20a%20longer%2C%20microbially%20mediated%20food%20chain%20fuelled%20by%20limited%20surface%20production.%20In%20contrast%2C%20the%20more%20productive%20region%20showed%20a%20more%20compressed%20trophic%20structure%20and%20increased%20resource%20overlap%2C%20consistent%20with%20more%20direct%20energy%20transfer%20from%20surface%20phytoplankton%20to%20higher%20trophic%20levels.%20These%20findings%20highlight%20the%20presence%20of%20multidimensional%20niche%20partitioning%20among%20deep-pelagic%20crustaceans%20and%20underscore%20the%20importance%20of%20incorporating%20this%20ecological%20heterogeneity%20into%20models.%20As%20climate-driven%20shifts%20in%20ocean%20productivity%20accelerate%2C%20recognising%20these%20dynamics%20will%20be%20essential%20for%20predicting%20ecosystem%20responses%20and%20informing%20the%20sustainable%20management%20of%20deep%20ocean%20communities.%22%2C%22date%22%3A%22JUN%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.dsr.2026.104680%22%2C%22citationKey%22%3A%22santanaVerticalMigrationTrophic2026%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%252FY2xhcml2YXRlLGVsc2V2aWVyLE1UQXVNVEF4Tmk5cUxtUnpjaTR5TURJMkxqRXdORFk0TUEsWmpBNU5qaGpNakF0WlRWa1lpMDBNVE5tTFRneE9UUXRObUUwWVRBM1l6bGpaREl6LGh0dHBzOi8vd3d3LnNjaWVuY2VkaXJlY3QuY29tL3NjaWVuY2UvYXJ0aWNsZS9waWkvUzA5NjcwNjM3MjYwMDAzMzY_cGVzPXZvcg.pJOGEnN9O6mYhD6vuy7E-BS6MaS0KKyefSuabKkQzHk%26DestApp%3DGetFTR%26SrcItemId%3DWOS%3A001728319600001%26SrcAppSID%3DEUW1ED0EC9TikDtwoxouCgH7GrIcD%26HMAC%3DT%252Bq9Bei2hlUoSDfmjbqpL%252FQDLPZ6XSAYyhU3bexLCEU%253D%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220967-0637%2C%201879-0119%22%2C%22language%22%3A%22English%22%2C%22collections%22%3A%5B%22QICW69BQ%22%5D%2C%22dateModified%22%3A%222026-04-13T08%3A48%3A44Z%22%7D%7D%2C%7B%22key%22%3A%22QTS3DIUP%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%22Lagunes%20et%20al.%22%2C%22parsedDate%22%3A%222026-06%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%3BLagunes%2C%20M.-J.%2C%20Marques%2C%20G.%20M.%2C%20Salas-Acosta%2C%20E.%20R.%2C%20Vasquez-Elizondo%2C%20R.%20M.%2C%20Thibaut%2C%20T.%2C%20Robledo%2C%20D.%2C%20Connan%2C%20S.%2C%20Stiger-Pouvreau%2C%20V.%2C%20Berline%2C%20L.%2C%20Lett%2C%20C.%2C%20%26amp%3B%20Pecquerie%2C%20L.%20%282026%29.%20From%20calibration%20to%20identifiability%20analysis%3A%20Using%20a%20multi-reserve%20DEB%20model%20to%20understand%20holopelagic%20Sargassum%20spp.%20growth.%20%26lt%3Bi%26gt%3BEcological%20Modelling%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B516%26lt%3B%5C%2Fi%26gt%3B%2C%20111578.%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.ecolmodel.2026.111578%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.ecolmodel.2026.111578%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%22From%20calibration%20to%20identifiability%20analysis%3A%20Using%20a%20multi-reserve%20DEB%20model%20to%20understand%20holopelagic%20Sargassum%20spp.%20growth%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maria-Jose%22%2C%22lastName%22%3A%22Lagunes%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Goncalo%20M.%22%2C%22lastName%22%3A%22Marques%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Evelyn%20R.%22%2C%22lastName%22%3A%22Salas-Acosta%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Roman%20M.%22%2C%22lastName%22%3A%22Vasquez-Elizondo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thierry%22%2C%22lastName%22%3A%22Thibaut%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Daniel%22%2C%22lastName%22%3A%22Robledo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Solene%22%2C%22lastName%22%3A%22Connan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Valerie%22%2C%22lastName%22%3A%22Stiger-Pouvreau%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Leo%22%2C%22lastName%22%3A%22Berline%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Lett%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laure%22%2C%22lastName%22%3A%22Pecquerie%22%7D%5D%2C%22abstractNote%22%3A%22Unprecedented%20quantities%20of%20the%20brown%20floating%20macroalgae%20Sargassum%20have%20been%20recorded%20in%20the%20tropical%20North%20Atlantic%20Ocean.%20However%2C%20the%20environmental%20factors%20affecting%20holopelagic%20Sargassum%20spp.%20growth%20and%20survival%20remain%20poorly%20understood.%20Here%2C%20we%20developed%20a%20multi-reserve%20DEB%20model%20for%20Sargassum%20spp.%20to%20link%20environmental%20conditions%20%28temperature%2C%20nutrients%2C%20and%20light%29%20to%20the%20organism%20physiology.%20In%20the%20context%20of%20DEB%20theory%2C%20estimating%20a%20multi-reserve%20model%20parameters%20can%20be%20particularly%20challenging%20and%20strongly%20relies%20on%20the%20availability%20of%20the%20datasets%20with%20information%20about%20physiological%20processes.%20We%20conducted%20a%20literature%20review%20of%20Sargassum%20spp.%20physiological%20responses%2C%20and%20although%20some%20data%20have%20been%20reported%2C%20experimental%20datasets%20on%20some%20key%20physiological%20processes%20are%20still%20relatively%20scarce.%20From%20the%20available%20data%20we%20performed%20an%20estimation%20of%20the%20DEB%20model%20parameters.%20We%20then%20followed%20a%20%26quot%3Bvirtual%20ecologist%26quot%3B%20approach%20to%20create%20a%20framework%20linking%20modelers%20and%20empiricists%2C%20to%20analyze%20which%20experiments%20that%20are%20most%20needed%20to%20reduce%20parameter%20uncertainty.%20We%20tested%20parameter%20identifiability%20by%20creating%20%26quot%3Bvirtual%26quot%3B%20observed%20data%20and%20we%20analyzed%20the%20type%20of%20datasets%20that%20reduce%20the%20uncertainty%20on%20parameter%20estimates%2C%20thus%20increasing%20their%20identifiability%20and%20the%20prediction%20power%20of%20the%20algae%20model.%20Our%20analysis%20showed%20to%20which%20extent%20new%20experiments%20on%20nutrient%20uptake%20and%20nutrient%20limitation%20would%20reduce%20the%20uncertainty%20of%20key%20model%20parameters%20and%20improve%20our%20understanding%20of%20holopelagic%20Sargassum%20spp.%20physiology.%20More%20generally%2C%20our%20study%20demonstrates%20how%20the%20use%20of%20DEB%20models%2C%20coupled%20with%20parameter%20identifiability%20analyses%2C%20can%20help%20design%20most%20needed%20experiments%20thereby%20contributing%20to%20an%20integrated%20approach%20between%20experiments%20and%20modeling.%22%2C%22date%22%3A%22JUN%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.ecolmodel.2026.111578%22%2C%22citationKey%22%3A%22lagunesCalibrationIdentifiabilityAnalysis2026%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%252FY2xhcml2YXRlLGVsc2V2aWVyLE1UQXVNVEF4Tmk5cUxtVmpiMnh0YjJSbGJDNHlNREkyTGpFeE1UVTNPQSxOVFF3WVRBeFpXSXROekpoT1MwME5qTXdMVGhtTkRrdE56TmhPVEJpTVRZM1l6RmssaHR0cHM6Ly93d3cuc2NpZW5jZWRpcmVjdC5jb20vc2NpZW5jZS9hcnRpY2xlL3BpaS9TMDMwNDM4MDAyNjAwMTA3OT9wZXM9dm9y.cppUr_Fd8Y_-fKrKj1YzSqd5OwdtfCngPqkOQ780bMU%26DestApp%3DGetFTR%26SrcItemId%3DWOS%3A001731120600001%26SrcAppSID%3DEUW1ED0EC9TikDtwoxouCgH7GrIcD%26HMAC%3DRkNIsTtbyzQfwcv1ZnUgACs10tsw4Hr5Fv7YeSzXvfI%253D%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220304-3800%2C%201872-7026%22%2C%22language%22%3A%22English%22%2C%22collections%22%3A%5B%22QICW69BQ%22%5D%2C%22dateModified%22%3A%222026-04-13T09%3A08%3A50Z%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

Du, J., Xu, H.-F., Gauthier, A., Beisner, B. E., Lavaud, J., & Juneau, P. (2026). Influence of light intensity on the toxicity of herbicides, alone or in mixture, to freshwater phytoplankton. Water Biology and Security, 5(3), 100507. https://doi.org/10.1016/j.watbs.2025.100507

Santana, J. L., Eduardo, L. N., Souza-Filho, J. F., Aragao, C. E., Andrade, R. M., Figueiredo, G. G. A. A., Le Loc’h, F., & Bertrand, A. (2026). Vertical migration, trophic structure, and ecological strategies of deep-pelagic crustaceans across contrasting systems in the western tropical Atlantic. Deep-Sea Research Part I-Oceanographic Research Papers, 229, 104680. https://doi.org/10.1016/j.dsr.2026.104680

Lagunes, M.-J., Marques, G. M., Salas-Acosta, E. R., Vasquez-Elizondo, R. M., Thibaut, T., Robledo, D., Connan, S., Stiger-Pouvreau, V., Berline, L., Lett, C., & Pecquerie, L. (2026). From calibration to identifiability analysis: Using a multi-reserve DEB model to understand holopelagic Sargassum spp. growth. Ecological Modelling, 516, 111578. https://doi.org/10.1016/j.ecolmodel.2026.111578

Accéder à la liste des publications du laboratoire.

L’article du mois

Les Efflorescences phytoplanctoniques subantarctiques dans l’ouest de l’océan Indien sont fertilisées par des eaux riches en fer du courant des Aiguilles

actualités, article du mois

Résumé Le Courant des Aiguilles, qui longe la côte Est de l’Afrique australe, se divise à la pointe du continent : une partie forme les anneaux des Aiguilles, d’énormes tourbillons qui dérivent vers l’Atlantique, tandis que le courant…

Retrouvez les articles des mois précédents