Abstract Here we conduct a qualitative and quantitative analysis of ectoparasites and endoparasites of Astyanax altiparanae (Garutti & Britski, 2000), popularly known as lambari-do-rabo-amarelo collected from the Batalha River, State of São Paulo, Brazil. Of the 67 specimens of A. altiparanae, 52 we...
RESUMEN El objetivo del estudio fue evaluar filtros domiciliarios para remover arsénico presente en agua proveniente del río Sama. El sistema estuvo compuesto de un filtro tradicional de arena y un filtro con el material adsorbente de hierro cerovalente estabilizado en quitosano. La evaluación del sis...
Abstract The water quality is related to the hydrologic and limnologic properties of ground and surface water, and significant efforts have been made to monitor water sources to understand the effects of land use changes in agricultural areas, with significant socioeconomic activities. The objective of t...
Agricultura,
Brasil,
Conservación de los Recursos Naturales,
Ecosistema,
Monitoreo del Ambiente/métodos,
Industrias,
Formulación de Políticas,
Ríos/química,
Suelo/química,
Urbanización,
Movimientos del Agua,
Contaminantes del Agua/química,
Contaminación del Agua,
Calidad del Agua/normas
Abstract The golden mussel, Limnoperna fortunei, is an Asian freshwater bivalve introduced in South America in the beginning of the 1990's, probably through ballast water releases in La Plata River estuary. It dispersed north through Paraná, Uruguay and Paraguay Rivers. The study evaluated the macroscal...
Abstract Escalating burden of antibiotic resistance that has reached new heights present a grave concern to mankind. As the problem is no longer confined to clinics, we hereby report identification of a pandrug resistant Escherichia coli isolate from heavily polluted Delhi stretch of river Yamuna, India....
Antibacterianos/farmacología,
Farmacorresistencia Bacteriana Múltiple,
Escherichia coli/efectos de los fármacos,
Escherichia coli/enzimología,
Escherichia coli/genética,
Escherichia coli/aislamiento & purificación,
Proteínas de Escherichia coli/genética,
Proteínas de Escherichia coli/metabolismo,
India,
Metales Pesados/farmacología,
Pruebas de Sensibilidad Microbiana,
Operón,
Ríos/microbiología,
beta-Lactamasas/genética,
beta-Lactamasas/metabolismo
Abstract Metynnis lippincottianus is a freshwater native fish to the Guiana basin and Amazon basin and was recently introduced into the São Francisco River in Brazil. This study aimed to determine the helminths parasites of M. lippincottianus from the Três Marias Reservoir, upper São Francisco River, ...
Resumen El Río Presidio, ubicado en el sur de Sinaloa, México, pertenece a la zona de transición zoogeográfica NeárticoNeotropical, donde su fauna de peces podría manifestar cambios en la abundancia y distribución de las especies durante los períodos de lluvias y de secas. El objetivo principal d...
Abstract Fish diversity loss is threatened by the construction of dams as they prevent the regular natural dispersal among populations. Thus, conservation of key riverine habitats for fish reproduction may be essential for the recruitment of new native species of fish. The present study aimed to identify...
Resumen En las zonas urbanas, los ríos brindan diversos servicios ecosistémicos, entre ellos, funcionan como corredores biológicos interurbanos, permitiendo a las aves trasladarse y refugiarse en medio de la ciudad. Sin embargo, los altos niveles de contaminación las exponen, e incluso al ser humano,...
Abstract The knickzones are defined as locally steep riverbed segments, such as a convex reach in a concave-up longitudinal profile. They are worldwide distributed and geologically well studied, but despite their distinctiveness as a particular kind of macrohabitat there is a notorious lack of ecological...
