Abstract In this study, the development and assessment of a modified, efficient, and cost-efficient protocol for mDNA (metagenomic DNA) extraction from contaminated water samples was attempted. The efficiency of the developed protocol was investigated in comparison to a well-established commercial kit (E...
Métodos Analíticos de la Preparación de la Muestra/economía,
Métodos Analíticos de la Preparación de la Muestra/métodos,
Bacterias/clasificación,
Bacterias/genética,
Bacterias/aislamiento & purificación,
ADN Bacteriano/genética,
ADN Bacteriano/aislamiento & purificación,
Agua Dulce/química,
Agua Dulce/microbiología,
Metagenómica/economía,
Metagenómica/métodos,
Filogenia,
Análisis de Secuencia de ADN
Abstract This study provides morphological and molecular data of a new parasite species found in the muscle layer of the intestinal tract of the South American silver catfish, Rhamdia quelen from Marajó Island region (Pará State, Brazil), an important fishery resource with recognized potential for fish...
Abstract The objective of this study was to compare and correlate the ecology of neonates and young individuals of Potamotrygon wallacei, Potamotrygon motoro and Paratrygon aiereba with regard to their hematological profile and the physicochemical parameters of the water that they inhabit. Principal comp...
Abstract The human polyomaviruses JC and BK (JCPyV and BKPyV) are ubiquitous, species-specific viruses that belong to the family Polyomaviridae. These viruses are known to be excreted in human urine, and they are potential indicators of human wastewater contamination. In order to assess the distribution ...
Studies on the distribution of molluscs in Brazil have been conducted since the beginning of the twentieth and the knowledge of the species distributed in the country represent important findings, which contribute to the understanding of human diseases and those of veterinary importance, transmitted by t...
Five specimens of Plagioscion squamosissimus from Xingu River and ten specimens of Pellona castelnaeana from Mosqueiro Island, both in the State of Pará, Brazil, were examined to investigate the presence of anisakid nematodes, due to their zoonotic potential. Their parasitism indices and sites of infect...
Objetivo: Discorrer sobre os aspectos fundamentais da esterilização pelo vapor e os recursos técnicos que podem ser utilizados para a redução do consumo de água no processo de esterilização. Método: Revisão da literatura e de normas técnicas nacionais e internacionais relacionadas aos aspectos...
ABSTRACT Sinotaia quadrata is a snail native from Asia recorded for the first time in South America in 2009 in central Argentina. In 2015, this species was also found in a lowland stream with different water qualities. Our aims were to contribute to the knowledge of its population ecology and to compare ...
Análisis de Varianza,
Animales,
Argentina,
Ecosistema,
Agua Dulce,
Especies Introducidas,
Densidad de Población,
Dinámica Poblacional,
Razón de Masculinidad,
Caracoles/anatomía & histología,
Estadísticas no Paramétricas,
Calidad del Agua
ABSTRACT Knowledge on fasting heat production (HEf) of fish is key to develop bioenergetics models thus improving feeding management of farmed species. The core of knowledge on HEf of farmed, neotropical fish is scarce. This study assessed the effect of body mass and water temperature on standard metabol...
Tamaño Corporal/fisiología,
Characidae/anatomía & histología,
Characidae/metabolismo,
Metabolismo Energético/fisiología,
Ayuno/metabolismo,
Agua Dulce,
Modelos Lineales,
Consumo de Oxígeno/fisiología,
Valores de Referencia,
Temperatura,
Termogénesis/fisiología
Zambrano, Cristina G;
Fonseca, Anelise O. S;
Valente, Júlia S. S;
Braga, Caroline Q;
Sallis, Elisa S. V;
Azevedo, Maria Isabel;
Weiblen, Carla;
Santurio, Janio M;
Botton, Sonia A;
Pereira, Daniela Isabel B.
Foram coletadas 186 amostras de água de ambientes pantanosos em 13 municípios das regiões Sul, Central e Oeste do Rio Grande do Sul, Brasil, com o objetivo de isolar e caracterizar espécies de Pythium e avaliar a sua patogenicidade empregando coelhos como modelo experimental. Em 11,8% (n=22) das águ...
