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| Registros recuperados: 57 | |
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| RIBEIRO,Thamy Santos; UEDA,Bruno Hideo; PAVANELLI,Gilberto Cezar; TAKEMOTO,Ricardo Massato. |
| ABSTRACTCongeneric host species present similar biological and behavioral aspects, what may favor the presence of a similar parasite fauna. The aim of the present study was to compare the composition and structure of the parasite community from congeneric species, Brycon amazonicus and B. melanopterus, collected on the Negro and Solimões Rivers. The fish internal organs were longitudinally opened and analyzed under stereomicroscope. The examination revealed that B. amazonicuswas parasitized by Procamallanus(Spirocamallanus) inopinatus(26.7% and 35.5%), Contracaecum type 2 (10% and 16.13%) and Rhabdochona acuminata(0% and 3.23%), prevalence values for Negro and Solimões River, respectively. The analysis of B. melanopterus, a fish species found only in the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Negro River; Solimões River; 'matrinxã'; Metazoan parasites; Nematode. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000100107 |
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| Michelet, Claire; Zeppilli, Daniela; Hubas, Cédric; Baldrighi, Elisa; Cuny, Philippe; Dirberg, Guillaume; Militon, Cécile; Walcker, Romain; Lamy, Dominique; Jézéquel, Ronan; Receveur, Justine; Gilbert, Franck; Houssainy, Amonda El; Dufour, Aurélie; Heimbürger-boavida, Lars-eric; Bihannic, Isabelle; Sylvi, Léa; Vivier, Baptiste; Michaud, Emma. |
| Bioindicators assess the mangroves ecological state according to the types of pressures but they differ with the ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within the low human-impacted mangroves in French Guiana (South America) in response to sediment variables with various distances to the main city. Contaminant’s concentrations differed among the stations, but they remained below toxicity guidelines. Meiofauna structure (Foraminifera, Kinorhyncha, Nematoda) however varied accordingly. Nematode’s identification brought details on the sediment’s quality. The opportunistic genus Paraethmolaimus (Jensen, 1994) strongly correlated to the higher concentrations of Hg, Pb. Anoxic sediments were marked by organic... |
| Tipo: Text |
Palavras-chave: Mangroves; Biodiversity; Meiofauna; Nematode; Anthropogenic pressures; Natural contamination; South America. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00684/79587/82274.pdf |
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| Bellec, Laure; Cambon-bonavita, Marie-anne; Durand, Lucile; Aube, Johanne; Gayet, Nicolas; Sandulli, Roberto; Brandily, Christophe; Zeppilli, Daniela. |
| Shallow-water hydrothermal vents are widespread, especially in the Mediterranean Sea, owing to the active volcanism of the area. Apart free microbial communities’ investigations, few biological studies have been leaded yet. Investigations of microbial communities associated with Nematoda, an ecologically important group in sediments, can help to improve our overall understanding of these ecosystems. We used a multidisciplinary-approach, based on microscopic observations (scanning electron microscopy: SEM and Fluorescence In Situ Hybridization: FISH) coupled with a molecular diversity analysis using metabarcoding, based on the 16S rRNA gene (V3-V4 region), to characterize the bacterial community of a free-living marine nematode and its environment, the... |
| Tipo: Text |
Palavras-chave: Nematode; Shallow-water hydrothermal vent; Sulfur-oxidizing bacteria; Iron cycle; Zetaproteobacteria. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00643/75544/76449.pdf |
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| Dolinski,Claudia; Lacey,Lawrence A.. |
| A multitude of insects and mites attack fruit crops throughout the tropics. The traditional method for controlling most of these pests is the application of chemical pesticides. Growing concern on the negative environmental effects has encouraged the development of alternatives. Inundatively and inoculatively applied microbial control agents (virus, bacteria, fungi, and entomopathogenic nematodes) have been developed as alternative control methods of a wide variety of arthropods including tropical fruit pests. The majority of the research and applications in tropical fruit agroecosystems has been conducted in citrus, banana, coconut, and mango. Successful microbial control initiatives of citrus pests and mites have been reported. Microbial control of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria; Virus; Fungus; Nematode. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000200001 |
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| Seesao, Y.; Audebert, C.; Verrez-bagnis, Veronique; Merlin, S.; Jerome, Marc; Viscogliosi, E.; Dei-cas, E.; Aliouat-denis, C. M.; Gay, Melanie. |
| Different methods were evaluated to extract DNA from pooled nematodes belonging to Anisakis, Contracaecum, Pseudoterranova and Hysterothylacium genera isolated from edible fish. Pooled DNA extraction is the first and compulsory step to allow the identification of a large number of samples through high-throughput DNA sequencing with drastic time and cost reductions. |
| Tipo: Text |
Palavras-chave: Anisakidae; High-throughput sequencing; Nematode; Pooled DNA extraction; Marine fish; COX2. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00189/30020/28607.pdf |
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| Gerard, Claudia; Verrez-bagnis, Veronique; Jerome, Marc; Lasne, Emilien. |
| The sea lamprey Petromyzon marinus, which is among the most phylogenetically ancient vertebrates, is a hematophagous ectoparasite that feeds on vertebrates and is considered vulnerable in Europe but is a pest in the North American Great Lakes. We conducted a literature review of helminth parasites of Petromyzon marinus and investigated postmetamorphic lampreys sampled in rivers and northeast Atlantic coastal waters (western France) during spawning migration. Based on the literature review, 16 helminth taxa have been recorded in Petromyzon marinus, among them 14 in North America but only 2 in Europe, with no species in common between these areas. Specific parasites are lacking, and helminth parasites recorded in Petromyzon marinus are mostly opportunistic... |
| Tipo: Text |
Palavras-chave: Sea lamprey; Helminth parasites; Unusual host; Accidental ingestion; Anisakis simplex sensu strict; Nematode. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00268/37964/36040.pdf |
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| Registros recuperados: 57 | |
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