The effective design of field studies requires that sample size requirements be estimated for
important endpoints before conducting assessments. This a priori calculation of sample size …

Studies conducted in Sweden in the early 1980s provided some of the first evidence that
effluents from some pulp mills were capable of inducing toxic responses in fish at very low …

This paper reports on a comparative perspective of liver histopathological data of the
sharptooth catfish Clarias gariepinus. The data was collected from a spectrum of relatively …

Biomarkers are measurements within an organism that respond to environmental effects and
are used as tools in bioassessment programs since they reflect physiological changes …

Ammonia is known to be an important toxicant in aquatic environments. Although ammonia
toxicity has been well studied in many fish species, effects of chronic exposure on slimy …

Effectively treating domestic wastewater is paramount for preserving the health of aquatic
ecosystems. Various technologies exist for wastewater treatment, ranging from simple pond …

Summary 1 Isotopic signatures of consumers provide a time integration of their feeding
history, and as a result of movements, are often out of line with signatures of their local …

Studies of fish communities of streams draining mining areas suggest that sculpins (Cottus
spp.) may be more sensitive than salmonids to adverse effects of metals. We compared the …

Laboratory tests have been used to assess the regulatory and research questions related to
the effects of pulp mill effluents on aquatic biota. Acute, short-term laboratory tests have …

Les préoccupations associées à l'utilisation des espèces sentinelles pour l'évaluation des
impacts environnementaux incluent leur résidence dans le milieu, leur abondance et leur …