Macroinvertebrate communities are one of the most used groups in assessments of water quality, since they respond directly to the level of contamination of aquatic ecosystems. The main objective of this study was the assessment of the water quality of the Sinos River basin (Rio Grande do Sul state, Brazil) through biotic indices based on the macroinvertebrate community ("Family Biotic Index - F...

In this paper, we propose a new parametric distribution which called as the Beta Modified Weibull Power Series (BMWPS) distribution. This distribution is obtained by compounding Beta Modified Weibull (BMW) and power series distributions. BMWPS distribution contains, as special sub-models, such as Beta Modified Weibull Poisson (BMWP) distribution, Beta Modified Weibull Geometric (BMWG) distribut...

This case study documents responses in a headwater macroinvertebrate assemblage to insecticide pollution and hydrological drought. In 2014, the Doubravka brook (Czech Republic) was damaged by large overflow of mixture chlorpyrifos (CPS) cypermethrin (CP). 2016–2017, this then affected severe drought that sometimes led an almost complete absence surface water. We found significant relationships ...

Macroinvertebrate metrics are helpful tools for the assessment of water quality and overall aquatic ecosystem health. However, their degree sensitivity most reliable bioassessment program development very poorly studied in Togo. This study aimed to test calculated at family genus levels. A total 21 parameters macroinvertebrates' data were collected during three periods 20 sampling sites within ...

Os recursos hídricos são os mais afetados pela atividade agrícolas de uma região, comprometendo as características dos sistemas hídricos. A expansão da fronteira agrícola e o uso fertilizantes agrotóxicos, que vem ocorrendo no Cerrado Tocantinense, constitui grande ameaça à qualidade, conservação a biodiversidade desse ambiente, sendo assim necessário um maior controle para preservação qualidad...

benthic macroinvertebrates in river are useful indicators for adverse impacts on the catchment and river ecosystems. these organisms integrate many ecological processes in catchment scale. in this study several single and multi metric biotic indices were used based on macroinvertebrates in order to evaluate the water quality of jajrood river. macroinvertebrates as well as water samples were col...

Los ecosistemas tropicales se ven fragmentados y afectados por las actividades humanas. Es muy importante comprender cómo estas inciden en la biodiversidad con miras a conservación el manejo de los acuáticos. En este estudio evaluó variación estructural familias macroinvertebrados acuáticos su relación calidad del agua quebradas asociadas cultivos café ganadería vacuna sector La Tagua Sierra Ne...