| Enregistrements |
Auteur  |
Alves-Júnior, F.D.A.; Silva, E.D.S.; Araújo, M.D.S.L.C.D.; Cardoso, I.; Bertrand, A.; Souza-Filho, J.F. |
| Titre |
Taxonomy of deep-sea shrimps of the Superfamily Oplophoroidea Dana 1852 (Decapoda: Caridea) from Southwestern Atlantic |
Type |
Article scientifique |
| Année |
2019 |
Publication |
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Revue Abrégée |
Zootaxa |
| Volume |
4613 |
Numéro |
3 |
Pages |
401-442 |
| Mots-Clés |
Crustacea; Acanthephyridae; New Records; bathypelagic shrimps; deep waters; deep-sea biodiversity; Northeastern Brazil; Oplophoridae |
| Résumé |
In this paper, we provide some available information about the occurrence and some taxonomic aspects of 19 species from the Superfamily Oplophoroidea in the southwestern Atlantic (Brazilian waters), with the update to 22 species of Oplophoroidea occurring in Brazilian waters. Samples were collected during two sets of surveys. The first was performed in 2009 and 2011 in the Potiguar Basin in northeast of Brazil (03–05°S; 38–35°W; between the States of Ceará and Rio Grande do Norte) under the framework of the project “Avaliação da biota bentônica e planctônica da Bacia Potiguar e Ceará (Bpot)”, with samples collected from bottom trawls in the continental slope at depth ranging from 150–2068 m. Second, under the in the framework of the ABRACOS (Acoustic along the Brazilian coast), performed in 2015 and 2017 on seamounts and offshore areas in Northeast Brazil (Ceará Chain, Rio Grande do Norte and Rocas Atoll, Fernando de Noronha Archipelago and Pernambuco State), with samples with pelagic micronekton and mesopelagic nets, in depths ranging from 50–1260 m. We highlight the occurrence of 14 species of the family Acanthephyridae and 5 species of the family Oplophoridae, including the first occurrences of five species to Brazilian deep waters: Acanthephyra kingsleyi Spence Bate, 1888, Ephyrina ombango Crosnier & Forest, 1973, Meningodora compsa (Chace, 1940), M. longisulca Kikuchi, 1985 and Systellapsis curvispina Crosnier, 1987. These records increase the knowledge on deep-sea shrimps occurring in Southwestern Atlantic. |
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en |
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1175-5334 |
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MARBEC @ isabelle.vidal-ayouba @ |
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2584 |
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| Auteur |
Amossé, J.; Bettarel, Y.; Bouvier, C.; Bouvier, T.; Tran Duc, T.; Doan Thu, T.; Jouquet, P. |
| Titre |
The flows of nitrogen, bacteria and viruses from the soil to water compartments are influenced by earthworm activity and organic fertilization (compost vs. vermicompost) |
Type |
Article scientifique |
| Année |
2013 |
Publication |
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Revue Abrégée |
Soil Biology & Biochemistry |
| Volume |
66 |
Numéro |
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Pages |
197-203 |
| Mots-Clés |
Bacterial and viral abundance; Bacterial diversity; Compost; Dichogaster bolaui; Earthworms; Leaching; Organic fertilization; Vermicompost |
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0038-0717 |
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MARBEC @ isabelle.vidal-ayouba @ |
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892 |
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Andrello, M.; Guilhaumon, F.; Albouy, C.; Parravicini, V.; Scholtens, J.; Verley, P.; Barange, M.; Sumaila, U.R.; Manel, S.; Mouillot, D. |
| Titre |
Global mismatch between fishing dependency and larval supply from marine reserves |
Type |
Article scientifique |
| Année |
2017 |
Publication |
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Revue Abrégée |
Nat. Commun. |
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8 |
Numéro |
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Pages |
16039 |
| Mots-Clés |
biodiversity conservation; climate-change; Connectivity; dispersal; fisheries management; impacts; Populations; protected areas; reef fishes; world |
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Marine reserves are viewed as flagship tools to protect exploited species and to contribute to the effective management of coastal fisheries. Yet, the extent to which marine reserves are globally interconnected and able to effectively seed areas, where fisheries are most critical for food and livelihood security is largely unknown. Using a hydrodynamic model of larval dispersal, we predict that most marine reserves are not interconnected by currents and that their potential benefits to fishing areas are presently limited, since countries with high dependency on coastal fisheries receive very little larval supply from marine reserves. This global mismatch could be reversed, however, by placing new marine reserves in areas sufficiently remote to minimize social and economic costs but sufficiently connected through sea currents to seed the most exploited fisheries and endangered ecosystems. |
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English |
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2041-1723 |
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MARBEC @ isabelle.vidal-ayouba @ |
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2162 |
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Arnaud-Haond, S.; Aires, T.; Candeias, R.; Teixeira, S.J.L.; Duarte, C.M.; Valero, M.; Serrao, E.A. |
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Entangled fates of holobiont genomes during invasion: nested bacterial and host diversities in Caulerpa taxifolia |
Type |
Article scientifique |
| Année |
2017 |
Publication |
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Revue Abrégée |
Mol. Ecol. |
| Volume |
26 |
Numéro |
8 |
Pages |
2379-2391 |
| Mots-Clés |
Algae; australia; Caulerpa; Chlorophyta; clonal diversity; dna; endophytic communities; genetic diversity; holobiont; invasion paradox; marine invasion; Mediterranean Sea; microsatellite markers; parasites; plant invasions; polymorphism |
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Successful prevention and mitigation of biological invasions requires retracing the initial steps of introduction, as well as understanding key elements enhancing the adaptability of invasive species. We studied the genetic diversity of the green alga Caulerpa taxifolia and its associated bacterial communities in several areas around the world. The striking congruence of alpha and beta diversity of the algal genome and endophytic communities reveals a tight association, supporting the holobiont concept as best describing the unit of spreading and invasion. Both genomic compartments support the hypotheses of a unique accidental introduction in the Mediterranean and of multiple invasion events in southern Australia. In addition to helping with tracing the origin of invasion, bacterial communities exhibit metabolic functions that can potentially enhance adaptability and competitiveness of the consortium they form with their host. We thus hypothesize that low genetic diversities of both host and symbiont communities may contribute to the recent regression in the Mediterranean, in contrast with the persistence of highly diverse assemblages in southern Australia. This study supports the importance of scaling up from the host to the holobiont for a comprehensive understanding of invasions. |
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English |
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0962-1083 |
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MARBEC @ alain.herve @ |
collection |
2143 |
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| Auteur |
ARNAUD-HAOND, S.; MOALIC, Y.; HERNANDEZ-GARCIA, E.; EGUILUZ, V.M.; ALBERTO, F.; SERRAO, E.A.; DUARTE, C.M. |
| Titre |
Disentangling the Influence of Mutation and Migration in Clonal Seagrasses Using the Genetic Diversity Spectrum for Microsatellites |
Type |
Article scientifique |
| Année |
2014 |
Publication |
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Revue Abrégée |
Journal Of Heredity |
| Volume |
105 |
Numéro |
4 |
Pages |
532-541 |
| Mots-Clés |
clonality; genetic divergence; Genetic Diversity Spectrum; microsatellites; Seagrass; stepwise mutation |
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The recurrent lack of isolation by distance reported at regional scale in seagrass species was recently suggested to stem from stochastic events of large-scale dispersal. We explored the usefulness of phylogenetic information contained in microsatellite loci to test this hypothesis by using the Genetic Diversity Spectrum (GDS) on databases containing, respectively, 7 and 9 microsatellites genotypes for 1541 sampling units of Posidonia oceanica and 1647 of Cymodocea nodosa. The simultaneous increase of microsatellite and geographic distances that emerges reveals a coherent pattern of isolation by distance in contrast to the chaotic pattern previously described using allele frequencies, in particular, for the long-lived P. oceanica. These results suggest that the lack of isolation by distance, rather than the resulting from rare events of large-scale dispersal, reflects at least for some species a stronger influence of mutation over migration at the scale of the distribution range. The global distribution of genetic polymorphism may, therefore, result predominantly from ancient events of step-by-step (re)colonization followed by local recruitment and clonal growth, rather than contemporary gene flow. The analysis of GDS appears useful to unravel the evolutionary forces influencing the dynamics and evolution at distinct temporal and spatial scales by accounting for phylogenetic information borne by microsatellites, under an appropriate mutation model. This finding adds nuance to the generalization of the influence of large-scale dispersal on the dynamics of seagrasses. |
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0022-1503 |
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pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
1138 |
| Lien permanent pour cet enregistrement |
