Laboratoire LEMAR – 2018
Vous êtes ici : Accueil
Claire Hellio, chevalier de l’Ordre National du Mérite
actualité à la Une, Actualité accueil, actualités, presse et medial’Expé-1point5 : une publication dans “One Earth”
actualité à la Une, Actualité accueil, actualités, changement clim'éthique, publicationSILICIUM, de la poussière d’étoiles au monde du vivant
actualité à la Une, Actualité accueil, actualités, Diffusion de la rechercheActualité du projet HOPOPoP : questionnaire à destination des pêcheurs de loisir en mer d’Iroise
actualité à la Une, Actualité accueil, actualités, Projets actualitésRDV le 8 juin ! Journée mondiale de l’océan x Objectif Plancton
actualité à la Une, Actualité accueil, actualités, sciences participativesL’acoustique halieutique au service du suivi des effets de la surpêche et des changements climatiques sur la sécurité alimentaire Afrique de l’ouest
actualité à la Une, Actualité accueil, actualitésClaire Hellio, chevalier de l’Ordre National du Mérite
actualité à la Une, Actualité accueil, actualités, presse et medial’Expé-1point5 : une publication dans “One Earth”
actualité à la Une, Actualité accueil, actualités, changement clim'éthique, publicationSILICIUM, de la poussière d’étoiles au monde du vivant
actualité à la Une, Actualité accueil, actualités, Diffusion de la rechercheActualité du projet HOPOPoP : questionnaire à destination des pêcheurs de loisir en mer d’Iroise
actualité à la Une, Actualité accueil, actualités, Projets actualitésRDV le 8 juin ! Journée mondiale de l’océan x Objectif Plancton
actualité à la Une, Actualité accueil, actualités, sciences participativesPublications
Publications récentes
355235
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%3A%22zotpress-29c8f147fefee37efbee179cfcb98b2b%22%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%22C4MKISDG%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Maslin%20et%20al.%22%2C%22parsedDate%22%3A%222024-12%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%3Cdiv%20class%3D%5C%22csl-bib-body%5C%22%20style%3D%5C%22line-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%5C%22%3E%5Cn%20%20%3Cdiv%20class%3D%5C%22csl-entry%5C%22%3EMaslin%2C%20M.%2C%20Paix%2C%20B.%2C%20van%20der%20Windt%2C%20N.%2C%20Ambo-Rappe%2C%20R.%2C%20Debitus%2C%20C.%2C%20Gaertner-Mazouni%2C%20N.%2C%20Ho%2C%20R.%2C%20%26amp%3B%20de%20Voogd%2C%20N.%20J.%20%282024%29.%20Prokaryotic%20communities%20of%20the%20French%20Polynesian%20sponge%20%3Ci%3EDactylospongia%20metachromia%3C%5C%2Fi%3E%20display%20a%20site-specific%20and%20stable%20diversity%20during%20an%20aquaculture%20trial.%20%3Ci%3EANTONIE%20VAN%20LEEUWENHOEK%20INTERNATIONAL%20JOURNAL%20OF%20GENERAL%20AND%20MOLECULAR%20MICROBIOLOGY%3C%5C%2Fi%3E%2C%20%3Ci%3E117%3C%5C%2Fi%3E%281%29%2C%2065.%20%3Ca%20href%3D%27https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs10482-024-01962-0%27%3Ehttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs10482-024-01962-0%3C%5C%2Fa%3E%3C%5C%2Fdiv%3E%5Cn%3C%5C%2Fdiv%3E%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Prokaryotic%20communities%20of%20the%20French%20Polynesian%20sponge%20%3Ci%3EDactylospongia%20metachromia%3C%5C%2Fi%3E%20display%20a%20site-specific%20and%20stable%20diversity%20during%20an%20aquaculture%20trial%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Mathilde%22%2C%22lastName%22%3A%22Maslin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benoit%22%2C%22lastName%22%3A%22Paix%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Niels%22%2C%22lastName%22%3A%22van%20der%20Windt%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Rohani%22%2C%22lastName%22%3A%22Ambo-Rappe%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Cecile%22%2C%22lastName%22%3A%22Debitus%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nabila%22%2C%22lastName%22%3A%22Gaertner-Mazouni%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Raimana%22%2C%22lastName%22%3A%22Ho%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicole%20J.%22%2C%22lastName%22%3A%22de%20Voogd%22%7D%5D%2C%22abstractNote%22%3A%22Dynamics%20of%20microbiomes%20through%20time%20are%20fundamental%20regarding%20survival%20and%20resilience%20of%20their%20hosts%20when%20facing%20environmental%20alterations.%20As%20for%20marine%20species%20with%20commercial%20applications%2C%20such%20as%20marine%20sponges%2C%20assessing%20the%20temporal%20change%20of%20prokaryotic%20communities%20allows%20us%20to%20better%20consider%20the%20adaptation%20of%20sponges%20to%20aquaculture%20designs.%20The%20present%20study%20aims%20to%20investigate%20the%20factors%20shaping%20the%20microbiome%20of%20the%20sponge%20Dactylospongia%20metachromia%2C%20in%20a%20context%20of%20aquaculture%20development%20in%20French%20Polynesia%2C%20Rangiroa%2C%20Tuamotu%20archipelago.%20A%20temporal%20approach%20targeting%20explants%20collected%20during%20farming%20trials%20revealed%20a%20relative%20high%20stability%20of%20the%20prokaryotic%20diversity%2C%20meanwhile%20a%20complementary%20biogeographical%20study%20confirmed%20a%20spatial%20specificity%20amongst%20samples%20at%20different%20longitudinal%20scales.%20Results%20from%20this%20additional%20spatial%20analysis%20confirmed%20that%20differences%20in%20prokaryotic%20communities%20might%20first%20be%20explained%20by%20environmental%20changes%20%28mainly%20temperature%20and%20salinity%29%2C%20while%20no%20significant%20effect%20of%20the%20host%20phylogeny%20was%20observed.%20The%20core%20community%20of%20D.%20metachromia%20is%20thus%20characterized%20by%20a%20high%20spatiotemporal%20constancy%2C%20which%20is%20a%20good%20prospect%20for%20the%20sustainable%20exploitation%20of%20this%20species%20towards%20drug%20development.%20Indeed%2C%20a%20microbiome%20stability%20across%20locations%20and%20throughout%20the%20farming%20process%2C%20as%20evidenced%20by%20our%20results%2C%20should%20go%20against%20a%20negative%20influence%20of%20sponge%20translocation%20during%20in%20situ%20aquaculture.%22%2C%22date%22%3A%22DEC%202024%22%2C%22language%22%3A%22English%22%2C%22DOI%22%3A%2210.1007%5C%2Fs10482-024-01962-0%22%2C%22ISSN%22%3A%220003-6072%2C%201572-9699%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.webofscience.com%5C%2Fwos%5C%2Fwoscc%5C%2Ffull-record%5C%2FWOS%3A001200761300001%22%2C%22collections%22%3A%5B%22MXS8HMWQ%22%5D%2C%22dateModified%22%3A%222024-04-25T14%3A08%3A45Z%22%7D%7D%2C%7B%22key%22%3A%22WBJCS66L%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Morelle%20et%20al.%22%2C%22parsedDate%22%3A%222024-12%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%3Cdiv%20class%3D%5C%22csl-bib-body%5C%22%20style%3D%5C%22line-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%5C%22%3E%5Cn%20%20%3Cdiv%20class%3D%5C%22csl-entry%5C%22%3EMorelle%2C%20J.%2C%20Bastos%2C%20A.%2C%20Frankenbach%2C%20S.%2C%20Frommlet%2C%20J.%20C.%2C%20Campbell%2C%20D.%20A.%2C%20Lavaud%2C%20J.%2C%20%26amp%3B%20Serodio%2C%20J.%20%282024%29.%20The%20Photoprotective%20Behavior%20of%20a%20Motile%20Benthic%20Diatom%20as%20Elucidated%20from%20the%20Interplay%20Between%20Cell%20Motility%20and%20Physiological%20Responses%20to%20a%20Light%20Microgradient%20Using%20a%20Novel%20Experimental%20Setup.%20%3Ci%3EMICROBIAL%20ECOLOGY%3C%5C%2Fi%3E%2C%20%3Ci%3E87%3C%5C%2Fi%3E%281%29%2C%2040.%20%3Ca%20href%3D%27https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs00248-024-02354-7%27%3Ehttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs00248-024-02354-7%3C%5C%2Fa%3E%3C%5C%2Fdiv%3E%5Cn%3C%5C%2Fdiv%3E%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22The%20Photoprotective%20Behavior%20of%20a%20Motile%20Benthic%20Diatom%20as%20Elucidated%20from%20the%20Interplay%20Between%20Cell%20Motility%20and%20Physiological%20Responses%20to%20a%20Light%20Microgradient%20Using%20a%20Novel%20Experimental%20Setup%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jerome%22%2C%22lastName%22%3A%22Morelle%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandra%22%2C%22lastName%22%3A%22Bastos%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Silja%22%2C%22lastName%22%3A%22Frankenbach%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jorg%20C.%22%2C%22lastName%22%3A%22Frommlet%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Douglas%20A.%22%2C%22lastName%22%3A%22Campbell%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%22Joao%22%2C%22lastName%22%3A%22Serodio%22%7D%5D%2C%22abstractNote%22%3A%22It%20has%20long%20been%20hypothesized%20that%20benthic%20motile%20pennate%20diatoms%20use%20phototaxis%20to%20optimize%20photosynthesis%20and%20minimize%20photoinhibitory%20damage%20by%20adjusting%20their%20position%20within%20vertical%20light%20gradients%20in%20coastal%20benthic%20sediments.%20However%2C%20experimental%20evidence%20to%20test%20this%20hypothesis%20remains%20inconclusive%2C%20mainly%20due%20to%20methodological%20difficulties%20in%20studying%20cell%20behavior%20and%20photosynthesis%20over%20realistic%20spatial%20microscale%20gradients%20of%20irradiance%20and%20cell%20position.%20In%20this%20study%2C%20a%20novel%20experimental%20approach%20was%20developed%20and%20used%20to%20test%20the%20hypothesis%20of%20photosynthesis%20optimization%20through%20motility%2C%20based%20on%20the%20combination%20of%20single-cell%20in%20vivo%20chlorophyll%20fluorometry%20and%20microfluidic%20chips.%20The%20approach%20allows%20the%20concurrent%20study%20of%20behavior%20and%20photosynthetic%20activity%20of%20individual%20cells%20of%20the%20epipelic%20diatom%20species%20Craspedostauros%20britannicus%20exposed%20to%20a%20light%20microgradient%20of%20realistic%20dimensions%2C%20simulating%20the%20irradiance%20and%20distance%20scales%20of%20light%20microgradients%20in%20benthic%20sediments.%20Following%20exposure%20to%20light%2C%20%28i%29%20cells%20explored%20their%20light%20environment%20before%20initiating%20light-directed%20motility%3B%20%28ii%29%20cells%20used%20motility%20to%20lower%20their%20light%20dose%2C%20when%20exposed%20to%20the%20highest%20light%20intensities%3B%20and%20%28iii%29%20motility%20was%20combined%20with%20reversible%20non-photochemical%20quenching%2C%20to%20allow%20cells%20to%20avoid%20photoinhibition.%20The%20results%20of%20this%20proof-of-concept%20study%20not%20only%20strongly%20support%20the%20photoprotective%20nature%20of%20photobehavior%20in%20the%20studied%20species%20but%20also%20revealed%20considerable%20variability%20in%20how%20individual%20cells%20reacted%20to%20a%20light%20microgradient.%20The%20experimental%20setup%20can%20be%20readily%20applied%20to%20study%20motility%20and%20photosynthetic%20light%20responses%20of%20other%20diatom%20species%20or%20natural%20assemblages%2C%20as%20well%20as%20other%20photoautotrophic%20motile%20microorganisms%2C%20broadening%20the%20toolset%20for%20experimental%20microbial%20ecology%20research.%22%2C%22date%22%3A%22DEC%202024%22%2C%22language%22%3A%22English%22%2C%22DOI%22%3A%2210.1007%5C%2Fs00248-024-02354-7%22%2C%22ISSN%22%3A%220095-3628%2C%201432-184X%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.webofscience.com%5C%2Fwos%5C%2Fwoscc%5C%2Ffull-record%5C%2FWOS%3A001160501200002%22%2C%22collections%22%3A%5B%22MXS8HMWQ%22%5D%2C%22dateModified%22%3A%222024-02-22T14%3A29%3A26Z%22%7D%7D%2C%7B%22key%22%3A%22L9DL4YE6%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Whittington%20et%20al.%22%2C%22parsedDate%22%3A%222024-09-15%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%3Cdiv%20class%3D%5C%22csl-bib-body%5C%22%20style%3D%5C%22line-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%5C%22%3E%5Cn%20%20%3Cdiv%20class%3D%5C%22csl-entry%5C%22%3EWhittington%2C%20R.%20J.%2C%20Buller%2C%20N.%2C%20Pathirana%2C%20E.%2C%20Dhand%2C%20N.%20K.%2C%20Hair%2C%20S.%2C%20Hick%2C%20P.%20M.%2C%20%26amp%3B%20Paul-Pont%2C%20I.%20%282024%29.%20Investigations%20of%20the%20involvement%20of%20Vibrio%20species%20with%20Ostreid%20herpesvirus-1%20in%20mass%20mortality%20events%20in%20the%20Pacific%20oyster%20Crassostrea%20gigas.%20%3Ci%3EAQUACULTURE%3C%5C%2Fi%3E%2C%20%3Ci%3E590%3C%5C%2Fi%3E%2C%20741090.%20%3Ca%20href%3D%27https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.aquaculture.2024.741090%27%3Ehttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.aquaculture.2024.741090%3C%5C%2Fa%3E%3C%5C%2Fdiv%3E%5Cn%3C%5C%2Fdiv%3E%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Investigations%20of%20the%20involvement%20of%20Vibrio%20species%20with%20Ostreid%20herpesvirus-1%20in%20mass%20mortality%20events%20in%20the%20Pacific%20oyster%20Crassostrea%20gigas%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Richard%20J.%22%2C%22lastName%22%3A%22Whittington%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicky%22%2C%22lastName%22%3A%22Buller%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Erandi%22%2C%22lastName%22%3A%22Pathirana%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Navneet%20K.%22%2C%22lastName%22%3A%22Dhand%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Sam%22%2C%22lastName%22%3A%22Hair%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Paul%20M.%22%2C%22lastName%22%3A%22Hick%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ika%22%2C%22lastName%22%3A%22Paul-Pont%22%7D%5D%2C%22abstractNote%22%3A%22Pacific%20oyster%20mortality%20syndrome%20%28POMS%29%20in%20Pacific%20oysters%20Crassostrea%20gigas%20is%20defined%20by%20mass%20mortality%20with%20Ostreid%20herpesvirus%20I%20%28OsHV-1%29.%20In%20this%20study%20the%20association%20of%20Vibrio%20species%20with%20oysters%20before%2C%20during%20and%20after%20POMS%20events%20was%20investigated%20at%20population%20level%20to%20clarify%20their%20involvement%20with%20OsHV-1%20in%20mass%20mortality%20events%20in%20the%20Georges%20and%20Hawkesbury%20River%20estuaries%2C%20Australia.%20In%20the%20POMS%20affected%20Georges%20River%20estuary%2C%20three%20patterns%20were%20observed%20concurrently%20at%20different%20sites%3A%20i%29%20Vibrio%20counts%20and%20OsHV-1%20DNA%20concentrations%20increased%20in%20adults%20and%20spat%20as%20mortalities%20started%20then%20decreased%20as%20mortalities%20stopped%20ii%29%20bacterial%20counts%20increased%20in%20spat%20but%20not%20in%20adults%20associated%20with%20mortalities%20due%20to%20OsHV-1%20iii%29%20bacterial%20counts%20increased%20in%20the%20absence%20of%20mass%20mortality%20or%20high%20concentrations%20of%20OsHV-1%20DNA.%20Although%20almost%20half%20of%20the%20120%20bacterial%20isolates%20were%20identified%20as%20an%20unknown%20Vibrio%20species%20belonging%20to%20the%20Splendidus%20clade%20with%20two%20predominant%20biotypes%20%28A%20and%20H%29%2C%20there%20was%20no%20association%20between%20biotype%20and%20mortality.%20Concurrently%20in%20the%20Hawkesbury%20River%20estuary%2C%20neither%20mortality%20nor%20OsHV-1%20were%20found%2C%20Vibrio%20counts%20fluctuated%20significantly%20and%20of%2084%20isolates%20identified%2C%20V.%20alginolyticus%2C%20V.%20parahaemolyticus%20and%20unidentified%20Vibrio%20sp.%20dominated%3B%20only%20five%20Splendidus%20clade%20isolates%20were%20identified.%20However%2C%20when%20POMS%20emerged%20in%20the%20Hawkesbury%20River%20estuary%2C%20the%20Splendidus-clade%20isolate%20became%20the%20dominant%20bacterial%20species.%20Mortality%20also%20occurred%20there%20without%20OsHV-1%20and%20the%20dominant%20bacteria%20then%20were%20V.%20alginolyticus%20and%20V.%20harveyi%2C%20but%20the%20Splendidus-clade%20isolate%20was%20not%20detected.%20None%20of%20the%20bacterial%20species%20were%20specifically%20associated%20with%20POMS%2C%20although%20the%20Splendidus%20clade%20isolate%20increased%20in%20prevalence%20after%20POMS%20emerged%20in%20the%20Hawkesbury%20River%20estuary.%20V.%20aestuarianus%20was%20not%20detected%20in%20this%20study.%20While%20the%20findings%20suggest%20that%20bacterial%20proliferation%20follows%20infection%20with%20OsHV-1%20in%20POMS%2C%20this%20was%20not%20a%20consistent%20feature.%20The%20number%20and%20diversity%20of%20bacteria%20within%20oyster%20tissues%20varied%20over%20time%2C%20between%20estuaries%2C%20between%20sites%20within%20an%20estuary%20and%20were%20associated%20with%20flooding%2C%20growing%20height%2C%20the%20age%20of%20oysters%2C%20mortality%20and%20OsHV-1.%22%2C%22date%22%3A%22SEP%2015%202024%22%2C%22language%22%3A%22English%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.aquaculture.2024.741090%22%2C%22ISSN%22%3A%220044-8486%2C%201873-5622%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.webofscience.com%5C%2Fwos%5C%2Fwoscc%5C%2Ffull-record%5C%2FWOS%3A001246045300001%22%2C%22collections%22%3A%5B%22MXS8HMWQ%22%5D%2C%22dateModified%22%3A%222024-06-23T12%3A46%3A52Z%22%7D%7D%2C%7B%22key%22%3A%22ZBCCM354%22%2C%22library%22%3A%7B%22id%22%3A355235%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Siebert%20et%20al.%22%2C%22parsedDate%22%3A%222024-08%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%3Cdiv%20class%3D%5C%22csl-bib-body%5C%22%20style%3D%5C%22line-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%5C%22%3E%5Cn%20%20%3Cdiv%20class%3D%5C%22csl-entry%5C%22%3ESiebert%2C%20V.%2C%20Froehlich%2C%20L.%2C%20Thebault%2C%20J.%2C%20Schoene%2C%20B.%20R.%2C%20Delebecq%2C%20G.%2C%20Picheral%2C%20M.%2C%20Waeles%2C%20M.%2C%20%26amp%3B%20Moriceau%2C%20B.%20%282024%29.%20Dynamics%20of%20molybdenum%20and%20barium%20in%20the%20Bay%20of%20Brest%20%28France%29%20explained%20by%20phytoplankton%20community%20structure%20and%20aggregation%20events.%20%3Ci%3EESTUARINE%20COASTAL%20AND%20SHELF%20SCIENCE%3C%5C%2Fi%3E%2C%20%3Ci%3E303%3C%5C%2Fi%3E%2C%20108783.%20%3Ca%20href%3D%27https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.ecss.2024.108783%27%3Ehttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.ecss.2024.108783%3C%5C%2Fa%3E%3C%5C%2Fdiv%3E%5Cn%3C%5C%2Fdiv%3E%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Dynamics%20of%20molybdenum%20and%20barium%20in%20the%20Bay%20of%20Brest%20%28France%29%20explained%20by%20phytoplankton%20community%20structure%20and%20aggregation%20events%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Valentin%22%2C%22lastName%22%3A%22Siebert%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Lukas%22%2C%22lastName%22%3A%22Froehlich%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Thebault%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Bernd%20R.%22%2C%22lastName%22%3A%22Schoene%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gaspard%22%2C%22lastName%22%3A%22Delebecq%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22Picheral%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Matthieu%22%2C%22lastName%22%3A%22Waeles%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Brivaeela%22%2C%22lastName%22%3A%22Moriceau%22%7D%5D%2C%22abstractNote%22%3A%22Primary%20producers%20are%20essential%20organisms%20for%20marine%20ecosystems%20because%20they%20form%20the%20basis%20of%20food%20webs%2C%20produce%20half%20of%20atmospheric%20oxygen%20and%20are%20involved%20in%20various%20biogeochemical%20cycles.%20At%20the%20end%20of%20a%20bloom%20event%2C%20phytoplankton%20cells%20are%20known%20to%20produce%20organic%20compounds%20that%20act%20as%20a%20%27cement%27%2C%20allowing%20the%20cells%20to%20stick%20together%20and%20form%20large%20sinking%20structures%20called%20aggregates.%20These%20aggregates%20are%20microenvironments%20with%20chemical%20properties%20that%20are%20very%20different%20from%20the%20surrounding%20water.%20The%20main%20objective%20of%20this%20study%20was%20to%20determine%20how%20the%20temporal%20variations%20in%20cell%20assemblages%20over%20time%20and%20the%20formation%20of%20aggregates%20following%20a%20bloom%20affect%20the%20concentrations%20of%20molybdenum%20%28Mo%29%20and%20barium%20%28Ba%29%20in%20the%20water%20column%2C%20which%20are%20elements%20typically%20measured%20within%20accretionary%20hard%20tissues%20%28e.g.%2C%20mollusc%20shells%29%20to%20track%20phytoplankton%20dynamics%20in%20the%20environment.%20To%20do%20so%2C%20we%20performed%20an%20environmental%20monitoring%20from%20March%20to%20October%202021%20at%20Lanve%3Cacute%20accent%3Eoc%20in%20the%20Bay%20of%20Brest%20%28France%29%20during%20which%20several%20biological%20%28e.g.%2C%20variations%20in%20phytoplankton%20assemblages%29%20and%20chemical%20%28e.g.%2C%20chemical%20properties%20of%20the%20water%20column%29%20parameters%20were%20measured%20once%20to%20twice%20per%20week.%20Our%20results%20show%20that%20spring%20and%20summer%20blooms%20of%20Gymnodinium%2C%20known%20to%20be%20enriched%20in%20Mo%2C%20could%20be%20one%20of%20the%20reasons%20explaining%20the%20particulate%20Mo%20enrichments%20in%20the%20water%20column.%20In%20addition%2C%20large%20phytoplankton%20aggregates%20transported%20a%20significant%20amount%20of%20Mo%20to%20the%20seafloor%20and%20associated%20suspension%20feeders.%20In%20contrast%2C%20the%20temporal%20variations%20in%20dissolved%20and%20particulate%20Ba%20concentration%20were%20strongly%20influenced%20by%20the%20formation%20of%20diatom%20blooms.%20Interestingly%2C%20there%20was%20a%20significant%20shift%20in%20Ba%20from%20the%20dissolved%20to%20the%20particulate%20fraction%20during%20the%20largest%20diatom%20bloom%20in%20late%20spring%2C%20associated%20with%20a%20significant%20Ba%20transport%20to%20the%20seafloor%2C%20which%20may%20be%20explained%20by%20the%20adsorption%20of%20this%20element%20onto%20diatom%20frustules.%20This%20study%20therefore%20highlights%20the%20impacts%20of%20phytoplankton%20on%20the%20dynamics%20of%20these%20elements%20in%20coastal%20ecosystems.%22%2C%22date%22%3A%22AUG%202024%22%2C%22language%22%3A%22English%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.ecss.2024.108783%22%2C%22ISSN%22%3A%220272-7714%2C%201096-0015%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.webofscience.com%5C%2Fwos%5C%2Fwoscc%5C%2Ffull-record%5C%2FWOS%3A001240565800001%22%2C%22collections%22%3A%5B%22MXS8HMWQ%22%5D%2C%22dateModified%22%3A%222024-06-14T11%3A17%3A09Z%22%7D%7D%5D%7D
Maslin, M., Paix, B., van der Windt, N., Ambo-Rappe, R., Debitus, C., Gaertner-Mazouni, N., Ho, R., & de Voogd, N. J. (2024). Prokaryotic communities of the French Polynesian sponge Dactylospongia metachromia display a site-specific and stable diversity during an aquaculture trial. ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY, 117(1), 65. https://doi.org/10.1007/s10482-024-01962-0
Morelle, J., Bastos, A., Frankenbach, S., Frommlet, J. C., Campbell, D. A., Lavaud, J., & Serodio, J. (2024). The Photoprotective Behavior of a Motile Benthic Diatom as Elucidated from the Interplay Between Cell Motility and Physiological Responses to a Light Microgradient Using a Novel Experimental Setup. MICROBIAL ECOLOGY, 87(1), 40. https://doi.org/10.1007/s00248-024-02354-7
Whittington, R. J., Buller, N., Pathirana, E., Dhand, N. K., Hair, S., Hick, P. M., & Paul-Pont, I. (2024). Investigations of the involvement of Vibrio species with Ostreid herpesvirus-1 in mass mortality events in the Pacific oyster Crassostrea gigas. AQUACULTURE, 590, 741090. https://doi.org/10.1016/j.aquaculture.2024.741090
Siebert, V., Froehlich, L., Thebault, J., Schoene, B. R., Delebecq, G., Picheral, M., Waeles, M., & Moriceau, B. (2024). Dynamics of molybdenum and barium in the Bay of Brest (France) explained by phytoplankton community structure and aggregation events. ESTUARINE COASTAL AND SHELF SCIENCE, 303, 108783. https://doi.org/10.1016/j.ecss.2024.108783
L’article du mois
Décryptage des forçages environnementaux dans la distribution de la méiofaune et des nématodes dans les mangroves des régions Atlantique-Caraïbes-Pacifique oriental et Indo-Ouest-Pacifique
article du moisRésumé
Les mangroves se développent dans des conditions environnementales et sous des pressions anthropiques dont l'impact sur la méiofaune benthique reste mal compris. La structuration des communautés de méiofaune en fonction des conditions…