Marine heatwaves imperil emblematic reef fishes by altering the energetic landscape of coral reefs.

Marine heatwaves are increasingly common due to human-induced climate change. Under prolonged thermal stress on coral reefs, corals can undergo bleaching, leading to mass coral mortality and large-scale changes in benthic community composition. While coral mortality has clear, negative impacts on the body condition and populations of coral-dependent fish species, the mechanisms that drive these changes remain poorly resolved.

Targeted and untargeted discovery of UV filters and emerging contaminants with environmental risk assessment on the Northwestern Mediterranean coast.

Marine ecosystems, particularly coastal areas, are becoming increasingly vulnerable to pollution from human activities. Persistent organic pollutants and contaminants of emerging concern (CECs) are recognized as significant threats to both human and environmental health. Our study aimed to identify the molecules present in the seawater of two bathing areas in the Western Mediterranean Sea.

Insights on the evolution and adaptation toward high-altitude and cold environments in the snow leopard lineage.

How snow leopard gradually adapted to the extreme environments in Tibet remains unexplored due to the scanty fossil record in Tibet. Here, we recognize five valid outside-Tibet records of the snow leopard lineage. Our results suggest that the snow leopard dispersed out of the Tibetan Plateau multiple times during the Quaternary.

Hemolymph microbiota and immune effectors' expressions driven by geographical rearing acclimation of the aquacultured Penaeus stylirostris.

Background: In holobiont, microbiota is known to play a central role on the health and immunity of its host. Then, understanding the microbiota, its dynamic according to the environmental conditions and its link to the immunity would help to react to potential dysbiosis of aquacultured species. While the gut microbiota is highly studied, in marine invertebrates the hemolymph microbiota is often set aside even if it remains an important actor of the hemolymph homeostasis.

Invasive macroalgae shape chemical and microbial waterscapes on coral reefs.

Over the past decades, human impacts have changed the structure of tropical benthic reef communities towards coral depletion and macroalgal proliferation. However, how these changes have modified chemical and microbial waterscapes is poorly known. Here, we assessed how the experimental removal of macroalgal assemblages influences the chemical and microbial composition of two reef boundary layers, the benthic and the momentum.

High diversity of crustose coralline algae microbiomes across species and islands, and implications for coral recruits.

Background: Crustose Coralline Algae (CCA) play a crucial role in coral reef ecosystems, contributing significantly to reef formation and serving as substrates for coral recruitment. The microbiome associated with CCAs may promote coral recruitment, yet these microbial communities remain largely understudied. This study investigates the microbial communities associated with a large number of different CCA species across six different islands of French Polynesia, and assess their potential influence on the microbiome of coral recruits.

Unveiling the potential and specificity of the Mahoran ethnopharmacopoeia: A field survey.

Ethnopharmacological Relevance: A significant portion of Mahoran people relies on traditional medicine to address their healthcare needs. However, very few studies have been carried out on this subject, and few data are available on the practices, plants used, and ailments most commonly treated by their traditional medicine.

Aim Of The Study: Within this context, the aim of this study was to identify the diseases most commonly treated by traditional Mahoran medicine, as well as the plants most commonly used against these various ailments.

Plant response to intermittent heat stress involves modulation of mRNA translation efficiency.

Acquired thermotolerance (also known as priming) is the ability of cells or organisms to survive acute heat stress if preceded by a milder one. In plants, acquired thermotolerance has been studied mainly at the transcriptional level, including recent descriptions of sophisticated regulatory circuits that are essential for this learning capacity. Here, we tested the involvement of polysome-related processes (translation and cotranslational mRNA decay (CTRD)) in Arabidopsis (Arabidopsis thaliana) thermotolerance using two heat stress regimes with and without a priming event.

Widespread presence of metallic compounds and organic contaminants across Pacific coral reef fish.

Coral reef fishes represent an invaluable source of macro- and micro-nutrients for tropical coastal populations. However, several potentially toxic compounds may jeopardize their contribution to food security. Concentrations of metallic compounds and trace elements (MTEs), and persistent organic pollutants (POPs, including pesticides and polychlorobiphenyls PCBs), totalizing 36 contaminants, were measured in coral reef fish from several Pacific islands.

The role of machine learning methods in physiological explorations of endurance trained athletes: a mini-review.

Endurance-trained athletes require physiological explorations that have evolved throughout the history of exercise physiology with technological advances. From the use of the Douglas bag to measure gas exchange to the development of wearable connected devices, advances in physiological explorations have enabled us to move from the classic but still widely used cardiopulmonary exercise test (CPET) to the collection of data under real conditions on outdoor endurance or ultra-endurance events. However, such explorations are often costly, time-consuming, and complex, creating a need for efficient analysis methods.

Environmental factors and potential probiotic lineages shape the active prokaryotic communities associated with healthy Penaeus stylirostris larvae and their rearing water.

Microbial dysbiosis is hypothesized to cause larval mass mortalities in New Caledonian shrimp hatcheries. In order to confirm this hypothesis and allow further microbial comparisons, we studied the active prokaryotic communities of healthy Penaeus stylirostris larvae and their surrounding environment during the first 10 days of larval rearing. Using daily nutrient concentration quantitative analyses and spectrophotometric organic matter analyses, we highlighted a global eutrophication of the rearing environment.

Synthesis and Comprehensive Characterization of Amino Acid-Derived Vinyl Monomer Gels.

In this study, we report an easy synthetic pathway to vinyl monomers derivatized with amino acids. Tyrosine-, phenylalanine-, tryptophan-, leucine-, and methionine-based monomers were synthesized, and their polymerization in the presence of cross-linking agents led to the formation of amino acid-based gels. The nature of cross-linker, the time of polymerization, and the type of initiation (photopolymerization or thermopolymerization) were investigated.

Salivary glucose detection based on platinum metal hydrogel prepared mouthguard electrochemical sensor.

A mouthguard electrochemical sensor for salivary glucose detection based on platinum metal hydrogel is proposed in this work. Conventional enzyme-based electrochemical glucose sensors are fraught with issues such as high cost, oxygen dependency, intricate immobilization procedures, and susceptibility to variations in temperature, pH, and so on. The detection of glucose in saliva, as a non-invasive sensing approach, presents a more convenient solution for diabetes monitoring.

Epigenetic memory of temperature sensed during somatic embryo maturation in 2-year-old maritime pine trees.

Embryogenesis is a brief but potentially critical phase in the tree life cycle for adaptive phenotypic plasticity. Using somatic embryogenesis in maritime pine (Pinus pinaster Ait.), we found that temperature during the maturation phase affects embryo development and post-embryonic tree growth for up to three years.

Settlement patterns and temporal successions of coral reef cryptic communities affect diversity assessments using autonomous reef monitoring structures (ARMS).

Autonomous Reef Monitoring Structures (ARMS) are used worldwide to assess cryptic diversity, especially on coral reefs. They were developed as standardised tools, yet conditions of deployment, such as immersion duration and/or deployment and retrieval seasons, vary among studies. Here we studied temporal and seasonal variability in coral reef cryptic communities sampled with 15 ARMS on a single coral reef slope site at Reunion Island, Southwest Indian Ocean.

Global budget assessment of natural and anthropogenic particulate copper fluxes to the Gulf of Lions.

Drainage basin of the Gulf of Lions is largely dominated by vineyards which require the extensive use of Cu fungicides, leading to continuous copper accumulation in surface soils. In this area, soils depict among the highest Cu pollution levels in Europe. In order to draw up a global budget of Cu fluxes to the Gulf of Lions, our approach is based on long-term monitoring of Cu levels in riverine suspended sediments of the Rhone river and coastal Mediterranean river, as well as atmospheric deposits.

From source to sink: part 2-seasonal dispersion of microplastics discharged in the NW Mediterranean Sea by the Rhone River in southern France.

As the largest individual contributor of freshwater inflow to the basin, the Rhone River is likely to be one of the main sources of microplastics (MPs) to the Mediterranean Sea. In order to predict the fate of MPs discharged by the Rhone River, an innovative 3D Lagrangian dispersion of its particles associated with vertical velocities was modeled in Mediterranean ocean currents. Through winter and summer scenarios, the seasonal variability of transfers and the corresponding accumulation areas were depicted in the Northwestern Basin according to hydrodynamic conditions on the continental shelf of the Gulf of Lion and to the frontal dynamics from the Pyrenees to the North Balearic fronts.

Evaluating cholinesterases inhibition by BAC and DDAC biocides: A combined experimental and theoretical approach.

Disinfectant biocides are chemicals that are heavily used for disinfection purposes in households, hospitals, and agrifood industry. The most common type of biocides are quaternary ammonium compounds (QAs), notably benzalkonium chloride (BAC) and didecyldimethylammonium chloride (DDAC), which have been shown to inhibit cholinesterases. This study aims to evaluate the effect of these biocides towards different cholinesterases using both enzyme inhibition and molecular docking experiments.

The socioeconomic and environmental niche of protected areas reveals global conservation gaps and opportunities.

The global network of protected areas has rapidly expanded in the past decade and is expected to cover at least 30% of land and sea by 2030 to halt biodiversity erosion. Yet, the distribution of protected areas is highly heterogeneous on Earth and the social-environmental preconditions enabling or hindering protected area establishment remain poorly understood. Here, using fourteen socioeconomic and environmental factors, we characterize the multidimensional niche of terrestrial and marine protected areas, which we use to accurately establish, at the global scale, whether a particular location has preconditions favourable for paestablishment.

Mathematical lipid correction of δ13C and effect of lipid extraction on δ15N of European eel (Anguilla anguilla) muscle: Lipid correction of δ13C in European eels.

Rationale: Carbon (δC) and nitrogen (δN) stable isotope analysis is a powerful tool to investigate diverse questions in fish ecology, such as their trophic position or migration strategies. These questions appear particularly important to protect endangered European eel. However, elevated lipid content in eel muscle can bias δC values, as lipids are C-depleted compared to proteins and carbohydrates.

ECT2 peptide sequences outside the YTH domain regulate its mA-RNA binding.

The mA epitranscriptomic mark is the most abundant and widespread internal RNA chemical modification, which through the control of RNA acts as an important factor of eukaryote reproduction, growth, morphogenesis and stress response. The main mA readers constitute a super family of proteins with hundreds of members that share a so-called YTH RNA binding domain. The majority of YTH proteins carry no obvious additional domain except for an Intrinsically Disordered Region (IDR).

Host diet drives gut microbiome convergence between coral reef fishes and mammals.

Animal gut microbiomes are critical to host physiology and fitness. The gut microbiomes of fishes-the most abundant and diverse vertebrate clade-have received little attention relative to other clades. Coral reef fishes, in particular, make up a wide range of evolutionary histories and feeding ecologies that are likely associated with gut microbiome diversity.

Validation of the Chemical and Biological Steps Required Implementing an Advanced Multi-Omics Approach for Assessing the Fate and Impact of Contaminants in Lagoon Sediments.

The increasing use of chemicals requires a better understanding of their presence and dynamics in the environment, as well as their impact on ecosystems. The aim of this study was to validate the first steps of an innovative multi-omics approach based on metabolomics and 16S metabarcoding data for analyses of the fate and impact of contaminants in Mediterranean lagoons. Semi-targeted analytical procedures for water and sediment matrices were implemented to assess chemical contamination of the lagoon: forty-six compounds were detected, 28 of which could be quantified in water (between 0.