Results: 293

First report of inventory and role of macroinvertebrates and fish in Cautín river (38° S, Araucania region Chile)

Braz. j. biol; 80 (1), 2020
Abstract The Cautin river is located in the 137 years old Araucania region, Chile (38°S), and is characterized by alterations through human interference due agriculture and towns in its surrounding basin, the presence of salmonids, and by its mixed regime, originated from snow melting in summer and rain...

Avaliação do crescimento de micro-organismos fotossintetizantes em fotobiorreator tubular empregando nutrientes provenientes da vinhaça tratada

vinhaça é resultante da produção de álcool, após a fermentação do mosto e destilação do vinho. É um resíduo rico em nutrientes, principalmente matéria orgânica, nitrogênio, fósforo e potássio. Para ser despejado em rios e lagos, esse efluente deve passar por tratamentos para remoção de...

Infection of Henneguya sp. on the gills of Metynnis lippincottianus from Curiaú River, in eastern Amazon region (Brazil)

Abstract Infection of fish gills by Henneguya causes greater contact between the secondary gill lamellae, thereby giving rise to decreased absorption surface area at the end of the filaments. This ectoparasite can cause damages on the gills infected fish. In the present study, fresh gills of Metynnis lip...

Diversity of monogenean parasites on gills of fishes from the Matapi River, in the Brazilian Amazon

Abstract This study investigated the fauna of monogeneans on gills of 13 fish species from the Matapi River, Brazilian Amazon. A total 548 fish belonging to 13 species (1 Anostomidae, 3 Characidae, 1 Curimatidae, 1 Hemiodontidae, 2 Serrasalmidae, 3 Scianidae, 1 Ageneiosidae and 1 Tetradontidae) were exam...

Checklist of parasites in fish from the upper Paraná River floodplain: An update

Abstract This study provides an updated list of parasite species and their respective hosts in the upper Paraná River floodplain. The list of parasites is structured by phylum, class, order and family, followed by a record of each host species. A total of 315 taxa of parasites were reported, of which 20...

First report of Livoneca guianensis (Isopoda: Cymothoidae) in Leporinus fasciatus (Pisces: Anostomidae) in Brazil

Abstract This study aimed to report the first record of the occurrence of the parasite Livoneca guianensis in Leporinus fasciatus in Brazil. In September 2019, during surveys of the parasites in 12 specimens of L. fasciatus from the lower Jari River basin, in Amapá State, Brazil, one specimen of L. guia...

Isopods Cymothoidae ectoparasites of fish from the Amazon

Abstract Most freshwater species of Cymothoidae are distributed in South America. They have mainly been recorded in the eastern and western regions of the Amazon River basin. However, in this ecosystem, the biodiversity of this group may be greater if the entire Amazon basin is considered. In this regard...

Self-medication practices in riverside communities in the Brazilian Amazon Rainforest

Rev. bras. enferm; 73 (5), 2020
ABSTRACT Objectives: to analyze the practice of self-medication and the associated factors in the riverside population of the Middle Solimões river region - Amazon rainforest. Methods: a cross-sectional population-based study conducted between April and July 2015, through interviews at home. Results:...

Knowledge of primary health care professionals on health policies for the riverside population

Rev. bras. enferm; 73 (5), 2020
ABSTRACT Objectives: to analyze the knowledge of health professionals on the health policies for the riverside population; identify how health practices with this group are developed; and discuss facilitators and barriers for the implementation of these policies. Methods: qualitative and descriptive st...

A new species of Parotocinclus with reduced adipose fin (Loricariidae: Hypoptopomatinae), from the rio Jacuípe basin, Bahia State, Brazil

Neotrop. ichthyol; 18 (2), 2020
A new species of Parotocinclus, apparently endemic to the rio Jacuípe basin, Bahia State, Brazil, is described. The new species is distinguished from congeners, except P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis, and P. spilurus, by the presence of...