Abstract The trophic ecology of ichthyofauna in a stream can be related to the presence or absence of riparian and aquatic vegetation, and mainly resource availability. Therefore, the aim of this study was to analyse the seasonal and ontogenetic variations for the trophic ecology of Hemigrammus marginatu...
Abstract The objective of the present work is to evaluate the seasonal patterns of species richness and abundance of the zooplankton community in a semi-arid river, Northeastern of Brazil. Zooplankton samples were taken in four hydrological periods along the Upper Parnaíba River: April (low), August (dr...
ABSTRACT The present study describes Tereancistrum flabellum n. sp. (Dactylogyridae, Ancyrocephalinae) from the gills of the anostomid fishes Leporinus friderici, Leporinus amblyrhynchus and Leporinus elongatus from two freshwater ecosystems in the south east of Brazil. This new species is mainly charact...
ABSTRACT Detection of virulent strains associated with aquatic environment is a current concern for the management and control of human and animal health. Thus, Vibrio diversity was investigated in four estuaries from state of Ceará (Pacoti, Choró, Pirangi and Jaguaribe) followed by antimicrobial susce...
Antibacterianos/farmacología,
Organismos Acuáticos/efectos de los fármacos,
Organismos Acuáticos/aislamiento & purificación,
Organismos Acuáticos/patogenicidad,
Brasil,
Resistencia a Múltiples Medicamentos,
Estuarios,
Mapeo Geográfico,
Pruebas de Sensibilidad Microbiana,
Ríos/microbiología,
Vibrio/efectos de los fármacos,
Vibrio/aislamiento & purificación,
Vibrio/patogenicidad,
Virulencia,
Factores de Virulencia,
Microbiología del Agua
ABSTRACT Occurrence of Dendrocephalus brasiliensis Pesta, 1921 (Crustacea, Anostraca) in the Caras river, southern Ceara, Brazil. The specimens were collected in March and April 2014. The new occurrence extends the distribution and update area of occupancy of the species, which is characterized by a spec...
ABSTRACT The degradation and homogenization of natural habitats is considered a major cause of biotic homogenization. Many studies have been undertaken on the effects of dams on aquatic wildlife, in particular fish assemblages. But how do dams affect the parasitic fauna of such fish? The aim of the prese...
RESUMO: Introdução: A investigação dos impactos clínico-neurológicos associados às concentrações de exposição ao mercúrio em populações expostas é necessária na Amazônia. Objetivo: Analisar as manifestações emocionais e motoras de ribeirinhos expostos pela dieta nos municípios de ...
Síntomas Afectivos/inducido químicamente,
Brasil,
Exposición a Riesgos Ambientales/efectos adversos,
Cabello/química,
Mercurio/análisis,
Intoxicación por Mercurio/diagnóstico,
Intoxicación por Mercurio/psicología,
Persona de Mediana Edad,
Trastornos Motores/inducido químicamente,
Ríos,
Evaluación de Síntomas
Abstract The aim of this study was to investigate the gills parasites in Satanoperca jurupari from the Jari River, state of Amapá, in eastern Amazon (Brazil). The gills of 100% of the hosts were parasitized by Ichthyophthirius multifiliis (Protozoa), Sciadicleithrum juruparii (Monogenoidea) Genarchella ...
Abstract This study focused on the characterization and analysis of communities and infra-communities of metazoan parasites of Plagioscion squamosissimus caught in Promissão Reservoir in the Tietê River in Borborema (21°39′58"S, 49°8′49"W), state of São Paulo, Brazil. Fifty adult specime...
Abstract This study was conducted to investigate the occurrence of PAH degrading microorganisms in two river systems in the Western Cape, South Africa and their ability to degrade two PAH compounds: acenaphthene and fluorene. A total of 19 bacterial isolates were obtained from the Diep and Plankenburg ri...
