Water quality biological assessment.

Monitoring ecological impactsconcepts and practice in flowing waters / by: (Electronic resources)

Water quality assessmentsa guide to the use of biota, sediments, and water in environmental monitoring / by: (Electronic resources)

Eau- Qualit歋

Electronic books

NATURE- Ecosystems & Habitats

Water quality biological assessment.

SCIENCE- Environmental Science (see also Chemistry

Water quality- Measurement.

Stream ecology.

NATURE- Ecology.

SCIENCE- Life Sciences

TECHNOLOGY & ENGINEERING- Environmental