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| Marchiori, Natalia C.; Pariselle, Antoine; Pereira, Joaber, Jr.; Agnese, Jean-francois; Durand, Jean-dominique; Vanhove, Maarten P. M.. |
| Representatives of Ligophorus Euzet et Suriano, 1977 were found on the gills of Mugil liza Valenciennes caught in southern Brazil. They were identified as Ligophorus uruguayense Failla Siquier et Ostrowski de Nufiez, 2009 and Ligophorus saladensis Marcotegui et Martorelli, 2009, even though specific identification proved to be difficult due to inconsistencies in some diagnostic features reported for these two species. Therefore, a combined morphological and molecular approach was used to critically review the validity of these species, by means of phase contrast and confocal fluorescence microscopical examination of sclerotised hard parts, and assessing the genetic divergence between L. saladensis, L. uruguayense and their congeners using rDNA sequences.... |
| Tipo: Text |
Palavras-chave: Morphology; Molecular systematics; Mullet; Parasite; Taxonomy. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00626/73847/73656.pdf |
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| Bettarel, Yvan; Combe, Marine; Adingra, Antoinette; Ndiaye, Awa; Bouvier, Thierry; Panfili, Jacques; Durand, Jean-dominique. |
| Preliminary studies conducted on the human gastro-intestinal tract have revealed that enteric viral communities play a preponderant role in microbial homeostatis. However to date, such communities have never been investigated in the fish gut. Herein, we examined the main ecological traits of viruses in the digestive tract of a euryhaline fish, the tilapia Sarotherodon melanotheron. Individuals were collected at 8 different sites in Senegal covering a salinity gradient from 3 to 104 parts per thousand, and showing large disparities in their organic pollutant concentrations. Results showed that the gut of S. melanotheron is home to a highly abundant viral community (0.2-10.7 x 10(9) viruses ml(-1)), distinct from the surrounding water, and essentially... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00452/56387/75058.pdf |
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| Durand, Jean-dominique; Borsa, Philippe. |
| The low level of morphometric variability and the poor phylogenetic information borne by the morpho-anatomical characters used thus far in the systematics of grey mullets (Mugilidae) emphasize the utility of molecular systematics in this family. A recent mitochondrial phylogeny of grey mullets has uncovered multiple deep lineages within several species, flagging putative cryptic species. Here, we considered that several of the deeply divergent lineages represent separate species based on either the tree topology, independent data from nuclear markers, geographic distributions, or a combination of the foregoing. By analogy with these well-documented cases, we considered other deep lineages in seven genera we focused on to represent putative cryptic species.... |
| Tipo: Text |
Palavras-chave: Molecular taxonomy; Revision; Chelon; Crenimugil; Dajaus; Ellochelon; Mugil; Osteomugil; Planiliza. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00626/73854/73613.pdf |
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| Cormier-salem, Marie-christine; Van Trai, Nguyen; Burgos, Ariadna; Durand, Jean-dominique; Bettarel, Yvan; Klein, Judith; Duc Huy, Hoang; Panfili, Jacques. |
| The main objective of this pilot study, conducted in June 2015 in the Can Gio Mangrove Biosphere Reserve (Can Gio MBR, Viet Nam), was to develop an interdisciplinary approach to assess some key services provided by reforested mangroves subject to external pressures and varying management policies. We focused on the abundance of viruses, bacteria, endo-and epi-and macrofauna and the diversity of crabs in the mangrove and the exploitation of its resources. The main social finding was that the local inhabitants are aware of the levels of protection of the different zones within the Can Gio MBR and respect them. The core and the buffer zones seem to present a similar ecological status. Genotyping showed a low level of crab diversity although there were many... |
| Tipo: Text |
Palavras-chave: Mangrove; Ecosystem services; Biodiversity; Local knowledge; Coastal environment; Interdisciplinary framework. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00417/52852/74762.pdf |
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