This study evaluated the effect of water quality of streams from micro-watersheds with
different land use (cloud forest, coffee plantation, pasture and under urban influence) during …

The objective of this study was to determine if the runoff from croplands fertilized with
municipal sludge was toxic to aquatic biota and, therefore, a potential threat to either public …

This work was conducted in a tropical montane cloud forest in south Ecuador. For three
years, water-chemical, hydrological and biological parameters were measured and …

Seven‐day tests with Ceriodaphnia dubia are commonly used to estimate toxicity of effluents
or receiving waters but can sometimes yield no toxicity outcomes even if pollutants are …

Abstract The lower San Gabriel River is an urban watershed located on the border of Los
Angeles and Orange Counties. It has a diversity of potential pollutant sources including five …

Ceriodaphnia dubia were cultured in four reconstituted water s with hardness and alkalinity
concentrations ranging from soft to the moderately hard water that is required by whole …

The purpose of this study was to examine the effect of two types of natural water and one
processed water on the reproductive success of Daphnia magna. It was also of interest to …

Steady increases in agricultural irrigation raise concerns about environmental impacts. Rice
producing regions face declining irrigation groundwater and have started reusing irrigation …

Effects of different food sources on selected life-history traits of Ceriodaphnia pulchella were
studied under controlled conditions. Animals were submitted to five treatments: artificial …

Because of the importance of surface waters from the Chillán River watershed (Chile) for
recreation, agricultural irrigation, and the production of drinking water, local concern about …