| Enregistrements |
Auteur  |
Chiarello, M.; Auguet, J.-C.; Bettarel, Y.; Bouvier, C.; Claverie, T.; Graham, N.A.J.; Rieuvilleneuve, F.; Sucre, E.; Bouvier, T.; Villeger, S. |
| Titre |
Skin microbiome of coral reef fish is highly variable and driven by host phylogeny and diet |
Type |
Article scientifique |
| Année |
2018 |
Publication |
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Revue Abrégée |
Microbiome |
| Volume |
6 |
Numéro |
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Pages |
147 |
| Mots-Clés |
bacterial communities; divergence; diversity; evolution; insights; life-history; Microbiota; mucus; patterns; Phylogenetic diversity; Phylogenetic signal; Phylosymbiosis; sequence data; Teleost; Tropical; vulnerability |
| Résumé |
Background: The surface of marine animals is covered by abundant and diversified microbial communities, which have major roles for the health of their host While such microbiomes have been deeply examined in marine invertebrates such as corals and sponges, the microbiomes living on marine vertebrates have received less attention. Specifically, the diversity of these microbiomes, their variability among species, and their drivers are still mostly unknown, especially among the fish species living on coral reefs that contribute to key ecosystem services while they are increasingly affected by human activities. Here, we investigated these knowledge gaps analyzing the skin microbiome of 138 fish individuals belonging to 44 coral reef fish species living in the same area. Results: Prokaryotic communities living on the skin of coral reef fishes are highly diverse, with on average more than 600 OTUs per fish, and differ from planktonic microbes. Skin microbiomes varied between fish individual and species, and interspecific differences were slightly coupled to the phylogenetic affiliation of the host and its ecological traits. Conclusions: These results highlight that coral reef biodiversity is greater than previously appreciated, since the high diversity of macro-organisms supports a highly diversified microbial community. This suggest that beyond the loss of coral reefs-associated macroscopic species, anthropic activities on coral reefs could also lead to a loss of still unexplored host-associated microbial diversity, which urgently needs to be assessed. |
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English |
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2049-2618 |
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pas de |
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MARBEC @ alain.herve @ |
collection |
2421 |
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| Auteur |
Chiarello, M.; Auguet, J.-C.; Graham, N.A.J.; Claverie, T.; Sucre, E.; Bouvier, C.; Rieuvilleneuve, F.; Restrepo-Ortiz, C.X.; Bettarel, Y.; Villeger, S.; Bouvier, T. |
| Titre |
Exceptional but vulnerable microbial diversity in coral reef animal surface microbiomes |
Type |
Article scientifique |
| Année |
2020 |
Publication |
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Revue Abrégée |
Proc. R. Soc. B-Biol. Sci. |
| Volume |
287 |
Numéro |
1927 |
Pages |
20200642 |
| Mots-Clés |
habitat; fish; conservation; phylogenetic diversity; health; index; communities; evenness; marine biodiversity; mayotte; Octocorallia; Scleratinia; skin microbiota; susceptibility; synechococcus |
| Résumé |
Coral reefs host hundreds of thousands of animal species that are increasingly threatened by anthropogenic disturbances. These animals host microbial communities at their surface, playing crucial roles for their fitness. However, the diversity of such microbiomes is mostly described in a few coral species and still poorly defined in other invertebrates and vertebrates. Given the diversity of animal microbiomes, and the diversity of host species inhabiting coral reefs, the contribution of such microbiomes to the total microbial diversity of coral reefs could be important, yet potentially vulnerable to the loss of animal species. Analysis of the surface microbiome from 74 taxa, including teleost fishes, hard and soft corals, crustaceans, echinoderms, bivalves and sponges, revealed that more than 90% of their prokaryotic phylogenetic richness was specific and not recovered in surrounding plankton. Estimate of the total richness associated with coral reef animal surface microbiomes reached up to 2.5% of current estimates of Earth prokaryotic diversity. Therefore, coral reef animal surfaces should be recognized as a hotspot of marine microbial diversity. Loss of the most vulnerable reef animals expected under present-day scenarios of reef degradation would induce an erosion of 28% of the prokaryotic richness, with unknown consequences on coral reef ecosystem functioning. |
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English |
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0962-8452 |
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WOS:000536677500005 |
Approuvé |
pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
2908 |
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| Auteur |
Chu, T.V.; Torréton, J.-P.; Mari, X.; Nguyen, H.M.T.; Pham, K.T.; Pham, T.T.; Bouvier, T.; Bettarel, Y.; Pringault, O.; Bouvier, C.; Rochelle-Newall, E. |
| Titre |
Nutrient ratios and the complex structure of phytoplankton communities in a highly turbid estuary of Southeast Asia |
Type |
Article scientifique |
| Année |
2014 |
Publication |
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Revue Abrégée |
Environ Monit Assess |
| Volume |
186 |
Numéro |
12 |
Pages |
8555-8572 |
| Mots-Clés |
Hab; Phytoplankton diversity; Southeast Asia; vietnam |
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English |
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0167-6369 |
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Approuvé |
pas de |
| Numéro d'Appel |
MARBEC @ alain.herve @ |
collection |
1161 |
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| Auteur |
Clavareau, L.; Sabarros, P.S.; Escalle, L.; Bach, P.; Abascal, F.J.; Lopez, J.; Murua, H.; Pascual Alayon, P.J.; Ramos, M.L.; Ruiz, J.; Mérigot, B. |
| Titre |
Elasmobranch bycatch distributions and mortality: Insights from the European tropical tuna purse-seine fishery |
Type |
Article scientifique |
| Année |
2020 |
Publication |
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Revue Abrégée |
Global Ecology and Conservation |
| Volume |
24 |
Numéro |
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Pages |
e01211 |
| Mots-Clés |
At-haulback mortality; Biodiversity; Life stage; Sex ratio; Spatio-temporal distribution |
| Résumé |
Despite bycatch of elasmobranch (sharks and rays) being a major concern in most fisheries worldwide, there is a lack of knowledge on their spatio-temporal species distribution, biology (life stage and sex-ratios), as well as their at-haulback mortality rate. Observer data from the French and Spanish tropical purse-seine tuna fisheries operating in the eastern Atlantic and western Indian Oceans between 2005 and 2017 were analysed to investigate elasmobranch bycatch. Data included 24 elasmobranchs species and distribution patterns of catch per unit of effort (CPUE) by species and sex-ratio were found to vary with life stages, areas, seasons and fishing modes. In general, higher catches were found in FAD-associated sets (>40%) than free tuna school sets (<17%) although this can vary depending on the species. For the large majority of species, a high proportion of juveniles were caught (30.7–100%), apparent at-haulback mortality rates was high (24.3–63.9%) and finally sex ratios was unbalanced (13.3–66.7% of females). Areas and seasons identified from these different components should be of interest for the monitoring and management of elasmobranch bycatches. |
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Éditeur |
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en |
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2351-9894 |
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pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
2812 |
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| Auteur |
Cocquempot, L.; Delacourt, C.; Paillet, J.; Riou, P.; Aucan, J.; Castelle, B.; Charria, G.; Claudet, J.; Conan, P.; Coppola, L.; Hocdé, R.; Planes, S.; Raimbault, P.; Savoye, N.; Testut, L.; Vuillemin, R. |
| Titre |
Coastal Ocean and Nearshore Observation: A French Case Study |
Type |
Article scientifique |
| Année |
2019 |
Publication |
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Revue Abrégée |
Front. Mar. Sci. |
| Volume |
6 |
Numéro |
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Pages |
Unsp-324 |
| Mots-Clés |
2013/2014 winter; atlantic coast; coastal ocean; coastline; diversity; ecosystem; increases; interdisciplinary; national structuration; nutrient ratios; observation infrastructure; phytoplankton community; temperature; variability; wave activity |
| Résumé |
To understand and predict the physical, chemical, and biological processes at play in coastal and nearshore marine areas requires an integrated, interdisciplinary approach. The case study of the French structuration of coastal ocean and nearshore observing systems provides an original overview on a federative research infrastructure named ILICO. It is a notable example of national structuration and pan-institution efforts to investigate the forefront of knowledge on the processes at work within the critical coastal zone. ILICO comprises, in a pluridisciplinary approach, eight distributed network-systems of observation and data analysis that are accredited and financially supported by French research institutions and the French Ministry for Higher Education, Research, and Innovation. ILICO observation points are implemented along metropolitan and overseas French coasts, where coastline dynamics, sea level evolution, physical and biogeochemical water properties, coastal water dynamics, phytoplankton composition, and health of coral reefs are monitored in order to address a wide range of scientific questions. To give an overview of the diversity and potential of the observations carried out, this paper offers a detailed presentation of three constituting networks: Service Observation en Milieu LITtoral (SOMLIT), with homogeneous sampling strategies, DYNALIT, with heterogeneous sampling strategies adapted to different environments, and Mediterranean Ocean Observing System for the Environment (MOOSE), an integrated, pluri-disciplinary coasta/offshore regional observatory in the north-western Mediterranean Sea. ILICO was conceived using a European framework. It addresses the great challenges of the next decade in terms of sustainability, cost-efficiency, interoperability, and innovation. This paper emphasizes the added-value of federating these systems, and highlights some recommendations for the future. |
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English |
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pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
2604 |
| Lien permanent pour cet enregistrement |
