Sebastien Herve – Page 5 – Laboratoire LEMAR UMR 6539

About Sebastien Herve

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But we are proud to say that Sebastien Herve contributed 92 entries already.

Entries by Sebastien Herve

Nitrogen fixation in the widely distributed marine gammaproteobacteria diazotroph Candidatus Thalassolituus haligoni

Abstract The high diversity and global distribution of heterotrophic bacterial diazotrophs (HBDs) in the ocean has recently become apparent. However, understanding the role these largely uncultured microorganisms play in marine N2 fixation poses a challenge due to their undefined growth requirements and the complex regulation of the nitrogenase enzyme. We isolated and characterized Candidatus Thalassolituus […]

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Deciphering environmental forcings in the distribution of meiofauna and nematodes in mangroves of the Atlantic-Caribbean-East Pacific and Indo-West Pacific regions

Abstract Mangroves develop under environmental conditions and anthropogenic pressures whose impact on benthic meiofauna remains poorly understood. It is unclear how meiofauna communities are structured according to local sedimentary conditions. This study was designed to characterize the community structure of meiofauna and nematodes (dominant taxa) and the associated environmental forcings in intertidal mangrove sediments from […]

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French coastal network for carbonate system monitoring: the CocoriCO2 dataset

Abstract Since the beginning of the industrial revolution, atmospheric carbon dioxide (CO2) concentrations have risen steadily and have induced a decrease of the averaged surface ocean pH by 0.1 units, corresponding to an increase in ocean acidity of about 30 %. In addition to ocean warming, ocean acidification poses a tremendous challenge to some marine organisms, […]

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Pearl Farming Micro-Nanoplastics Affect Oyster Physiology and Pearl Quality

Abstract Pearl farming is crucial for the economy of French Polynesia. However, rearing structures contribute significantly to plastic waste, and the widespread contamination of pearl farming lagoons by microplastics has raised concerns about risks to the pearl industry. This study aimed to evaluate the effects of micro-nanoplastics (MNPs, 0.4–200 μm) on the pearl oyster (Pinctada […]

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Expé-1point5 publication in “One Earth”

Here is a link to a publication by Olivier Ragueneau and Audrey Sabbagh, published on May 17 in the journal “One Earth.” It describes the philosophy and objectives of the experiment that has been co-led since 2020 by LEMAR (IUEM) and UMR MERIT (Université Paris Cité) as part of the Labos 1point5 collective. The Expé-1point5 […]