Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 13
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
CAMP Connectivité des Aires Marines Protégées. Mars 2009-Octobre 2012. Rapport Final ArchiMer
Bourjea, Jerome; Evano, Hugues; Muths, Delphine.
The main objective of the CAMP project (2009-2011) was to estimate the effective connectivity between Marine Protected Areas (MPA) in the southwest Indian Ocean (SWIO) through population genetics of 3 biological models Epinephelus merra, Lutjanus kasmira and Myripristis berndti. The ultimate goal is to provide scientific results for managers to contribute significantly to the design of the MPA network in SWIO. At the end of the project and thank to the cooperation with the Natural Marine Reserve of La Réunion and 5 international partners from the SWIO, 414 M. berndti, 623 L. kasmira and 731 E. merra were sampled in 16 different sites (Reunion, Mayotte, Geyser, Europa, Juan de Nova, Glorioso, Rodrigues, Mauritius, Moheli, Grande Comore, Seychelles, Kenya,...
Tipo: Text Palavras-chave: Aires Marines Protégées; Génétique des populations; Connectivité; Poisson corallien; Myripristis berndti; Epinephelus merra; Lutjanus kasmira : océan Indien.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00107/21808/19382.pdf
Imagem não selecionada

Imprime registro no formato completo
CAMP – Connectivité des Aires Marines Protégées - Période Mars 2009 – Février 2010. Rapport intermédiaire ArchiMer
Muths, Delphine; Bourjea, Jerome.
The main aim of the CAMP project (2009-2011) is to estimate the efficient connectivity between the Marine Protected Areas (MPA) of the South-West Indian Ocean (SWIO). For that purpose, we use a population genetics approach on 3 reef fishes: Epinephelus merra, Lutjanus kasmira et Myripristis berndti. The overall goal of the project is to provide new elements to MPA managers that will contribute to design the best network of MPAs in the SWIO. In the first year of the project, most of the time was spent to sample fishes. Based on collaborations with 5 international and national partners, we succeed to sample more than 1100 fishes within 12 sites of the SWIO. More than 850 of the 1100 fishes were already sequenced. The development of third microsatellite...
Tipo: Text Palavras-chave: Aires marines protégées; Génétique; Connectivité; Poissons de récif; Échantillonnage; Sud Ouest Océan Indien; Connectivité.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00100/21086/18710.pdf
Imagem não selecionada

Imprime registro no formato completo
Characterisation of 22 polymorphic microsatellite loci for the Broadbill Swordfish, Xiphias gladius ArchiMer
Bradman, H.; Grewe, P.; Bourjea, Jerome; Muths, Delphine; Appleton, B..
The Broadbill Swordfish is harvested by fisheries throughout the world. In order to devise more effective management strategies, we need a clear understanding of the population structure of the species. From a library of 29 tetranucleotide repeats, 22 microsatellite markers were characterised for 94 swordfish samples captured from eastern and western Australia. The number of alleles ranged from 2 to 26 and observed heterozygosity from 0.066 to 0.923. We have identified 18 microsatellites that will be valuable in the examination of swordfish population structure.
Tipo: Text Palavras-chave: Swordfish; Xiphias gladius; Microsatellite; Genetic markers.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00037/14805/12428.pdf
Imagem não selecionada

Imprime registro no formato completo
Characterization of thirteen new polymorphic microsatellite markers from the honeycomb grouper Epinephelus merra ArchiMer
Muths, Delphine; Bourjea, Jerome.
Epinephelus merra (Serranidae) is the most common and widespread species of this genus, mostly found in reef habitats from South Africa to Central Pacific. Thirteen polymorphic microsatellite loci were isolated and characterized from this species. Polymorphism was studied in two localities from the Comoros archipelago-Moh,li and Moroni. Allelic diversity was 7.5, polymorphism ranging from 3 to 13 alleles. Overall heterozygosity was high with an average observed heterozygosity of 0.587. Three of these loci were characterised by heterozygote deficiencies for both populations. Finally, ten of the 13 developed primers could be used in future population genetics study of E.merra that might be useful in a context of marine biodiversity conservation.
Tipo: Text Palavras-chave: Microsatellite; Epinephelus merra; Reef fish; Indian ocean.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00044/15529/12957.pdf
Imagem não selecionada

Imprime registro no formato completo
Comparative phylogeography of the western Indian Ocean reef fauna ArchiMer
Borsa, Philippe; Durand, Jean-dominique; Chen, Wei-jen; Hubert, Nicolas; Muths, Delphine; Mou-tham, Gerard; Kulbicki, Michel.
Assessing patterns of connectivity at the community and population levels is relevant to marine resource management and conservation. The present study reviews this issue with a focus on the western Indian Ocean (WIO) biogeographic province. This part of the Indian Ocean holds more species than expected from current models of global reef fish species richness. In this study, checklists of reef fish species were examined to determine levels of endemism in each of 10 biogeographic provinces of the Indian Ocean. Results showed that the number of endemic species was higher in the WIO than in any other region of the Indian Ocean. Endemic species from the WIO on the average had a larger body size than elsewhere in the tropical Indian Ocean. This suggests an...
Tipo: Text Palavras-chave: Indo-West Pacific; Biogeographic province; Endemism; Reef fish; Mitochondrial DNA; Parsimony network.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00288/39919/44195.pdf
Imagem não selecionada

Imprime registro no formato completo
Genetic connectivity of the reef fish Lutjanus kasmira at the scale of the western Indian Ocean ArchiMer
Muths, Delphine; Gouws, G.; Mwale, M.; Tessier, Emmanuel; Bourjea, Jerome.
Examining the genetic structure of species allows an estimate of the level of evolutionary connectivity between localities; this information is important for marine biodiversity protection, in particular, for the delineation of marine protected areas. In this context, a total of 601 Lutjanus kasmira (Forsskal, 1775) were sampled in 16 localities of the western Indian Ocean and analyzed with both mitochondrial cytochrome b sequencing and eight microsatellite loci genotyping. Both genetic markers indicate that differentiation was not significant even between samples separated by more than 4000 km. This absence of genetic differentiation among samples was favored by ecological plasticity of the species and is now ensured by resultant high levels of dispersal....
Tipo: Text
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00079/19044/16647.pdf
Imagem não selecionada

Imprime registro no formato completo
Genetic population structure of the Swordfish (Xiphias gladius) in the southwest Indian Ocean: Sex-biased differentiation, congruency between markers and its incidence in a way of stock assessment ArchiMer
Muths, Delphine; Grewe, R.; Jean, Claire; Bourjea, Jerome.
Genetic variation was surveyed at 11 microsatellite loci and at 517 bp of the mitochondrial control region to investigate the presence of genetic stock structure in swordfish (Xiphias gladius) in four proximal localities of the southwest Indian Ocean. One aim of this study was to serve as a preliminary examination for congruency of structure detected by these two genetic markers, prior to conducting a more comprehensive basin-wide survey of the Indian Ocean and nearby surrounding areas. Analyses of multilocus microsatellite genotypes and mitochondrial control region sequences both revealed a great homogeneity between samples. Genetic diversity detected at the regional scale was not significantly higher than detected at the local scale. Results suggest that...
Tipo: Text Palavras-chave: Indian Ocean; Population genetic; MtDNA; Microsatellites; Swordfish.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6455.pdf
Imagem não selecionada

Imprime registro no formato completo
Genetic structure of the reef grouper Epinephelus merra in the West Indian Ocean appears congruent with biogeographic and oceanographic boundaries ArchiMer
Muths, Delphine; Tessier, Emmanuel; Bourjea, Jerome.
The reef fauna connectivity of the West Indian Ocean (WIO) is one of the least studied globally. Here we use genetic analyses of the grouper Epinephelus merra (Bloch 1793) to determine patterns of connectivity and to identify barriers to dispersal in this WIO marine area. Phylogeographic and population-level analyses were conducted on cytochrome b sequences and microsatellites (13 loci) from 557 individuals sampled in 15 localities distributed across the West Indian Ocean. Additional samples from the Pacific Ocean were used to benchmark the WIO population structure. The high level of divergence revealed between Indian and Pacific localities (of about 4.5% in sequences) might be the signature of the major tectonic and climatic changes operating at the...
Tipo: Text Palavras-chave: Cytochrome b; Marine connectivity; Microsatellite; Reef fish; West Indian Ocean.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00189/30046/28566.pdf
Imagem não selecionada

Imprime registro no formato completo
IOSSS - ESPADON - Etude de la structure du stock d'espadon de l'Océan Indien: Synthèse de la première année. Période novembre 2008 - décembre 2009 ArchiMer
Bourjea, Jerome; Le Couls, Sarah; Muths, Delphine; Evano, Hugues.
Based on genetic and biological dynamic approaches, the main objective of the IOSSSESPADON project (2009-2011) is to study the biology and the stock structure of the Swordfish (Xiphias gladius) in the Indian Ocean and the bordering oceans (South East Atlantic and West Pacific). The results of this project will greatly contribute to a better stock assessment of this species that is undertaken by fisheries management commissions, mainly the IOTC. The first year of the project was dedicated to finalize the sampling strategy, to elaborate the associated protocols and to implement a large balanced sampling shame organised around a stratified spatio – temporal effort (2 sampling seasons: April – June and October – December) in the whole Indian Ocean. Based on a...
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00018/12914/9871.pdf
Imagem não selecionada

Imprime registro no formato completo
Isolation and characterization of thirteen polymorphic microsatellite markers from the bluestriped snappers Lutjanus kasmira and L. Bengalensis ArchiMer
Bonizzoni, Mariangela; Bourjea, Jerome; Chen, Bin; Crain, B. J.; Cui, Liwang; Fiorentino, V.; Hartmann, S.; Hendricks, S.; Ketmaier, V.; Ma, Xiaoguang; Muths, Delphine; Pavesi, L.; Pfautsch, S.; Rieger, M. A.; Santonastaso, T.; Sattabongkot, Jetsumon; Taron, C. H.; Taron, D. J.; Tiedemann, R.; Yan, Guiyun; Zheng, Bin; Zhong, Daibin.
This article documents the addition of 92 microsatellite marker loci to the Molecular Ecology Resources Database. Loci were developed for the following species: Anopheles minimus, An. sinensis, An. dirus, Calephelis mutica, Lutjanus kasmira, Murella muralis and Orchestia montagui. These loci were cross-tested on the following species: Calephelis arizonensi, Calephelis borealis, Calephelis nemesis, Calephelis virginiensis and Lutjanus bengalensis.
Tipo: Text
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00042/15373/13513.pdf
Imagem não selecionada

Imprime registro no formato completo
Multi-Genetic Marker Approach and Spatio-Temporal Analysis Suggest There Is a Single Panmictic Population of Swordfish Xiphias gladius in the Indian Ocean ArchiMer
Muths, Delphine; Le Couls, Sarah; Evano, Hugues; Grewe, Peter; Bourjea, Jerome.
Genetic population structure of swordfish Xiphias gladius was examined based on 2231 individual samples, collected mainly between 2009 and 2010, among three major sampling areas within the Indian Ocean (IO; twelve distinct sites), Atlantic (two sites) and Pacific (one site) Oceans using analysis of nineteen microsatellite loci (n = 2146) and mitochondrial ND2 sequences (n = 2001) data. Sample collection was stratified in time and space in order to investigate the stability of the genetic structure observed with a special focus on the South West Indian Ocean. Significant AMOVA variance was observed for both markers indicating genetic population subdivision was present between oceans. Overall value of F-statistics for ND2 sequences confirmed that Atlantic...
Tipo: Text
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00139/25013/23117.pdf
Imagem não selecionada

Imprime registro no formato completo
Population structure enhances perspectives on regional management of the western Indian Ocean green turtle ArchiMer
Bourjea, Jerome; Mortimer, Jeanne A.; Garnier, Julie; Okemwa, Gladys; Godley, Brendan J.; Hughes, George; Dalleau, Mayeul; Jean, Claire; Ciccione, Stephane; Muths, Delphine.
To refine our understanding of the spatial structure of the green turtle (Chelonia mydas) populations in the South West Indian Ocean (SWIO), we analysed patterns of mitochondrial DNA (396 base pairs control region fragment) variation among 171 samples collected at five distinct locations (Kenya, Northern Mozambique, and three locations in the Republic of Seychelles: the Granitic, Amirantes, and Farquhar groups) and compared them to genetic data (n = 288), previously collected from 10 southern locations in the SWIO. We also analysed post-nesting satellite tracks (n = 4) from green turtles nesting in the Amirantes group. Pairwise comparisons of haplotype frequencies showed significant genetic differentiation amongst rookeries and suggest that the SWIO hosts...
Tipo: Text Palavras-chave: Indian Ocean; MtDNA; Satellite tracking; Phylogeography; Management unit; Chelonia mydas.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00266/37732/36062.pdf
Imagem não selecionada

Imprime registro no formato completo
Restricted dispersal of the reef fish Myripristis berndti at the scale of the SW Indian Ocean ArchiMer
Muths, Delphine; Tessier, Emmanuel; Gouws, G.; Craig, M.; Mwale, M.; Mwaluma, J.; Mwandya, A.; Bourjea, Jerome.
The reef fish Myripristis berndti (Jordan & Everman 1903) is a pantropical species. A genetic analysis was conducted on 353 individuals from 10 localities distributed across the SW Indian Ocean (SWIO) in order to determine patterns of connectivity in the SWIO. Both the mtDNA sequences (711-bp cytochrome b sequences) and the microsatellites (8 newly developed loci) reveal spatial patterns of differentiation within the SWIO. There is, however, a discrepancy between the structure observed with each kind of marker. MtDNA revealed that 3 peripheral populations (NW Kenya, SE Reunion, and SW Europa) were isolated from the 7 more central populations, which form a more densely connected population network, while microsatellite data indicated a more restricted...
Tipo: Text Palavras-chave: MtDNA; Microsatellite; Marine fish; SW Indian Ocean; Connectivity.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00073/18444/15974.pdf
Registros recuperados: 13
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional