|Water What-ifs: Water Quality and Aquatic Macroinvertebrates|
Three macroinvertebrate lessons focus on (a) macroinvertebrate surveys, and how a pH change and the introduction of pesticides and fertilizers can affect an aquatic ecosystem, (b) pH and macroinvertebrate populations (do changes in the pH level effect an aquatic ecosystem?), and (c) pesticides and macroinvertebrates (does the introduction of pesticides and fertilizers alter an aquatic ecosystem?. Aquatic macroinvertebrates are found in lakes, streams, ponds, marshes and puddles and help maintain the health of the water ecosystem by eating bacteria and dead, decaying plants and animals. Overall water quality effects which types of organisms can survive in a body of water. "Water quality" may include the amounts of dissolved oxygen and the levels of algal growth, pollutants, which may be present and the pH level. This site also includes links to macroinvertebrate identification charts, comparison of larval stages and adults, reasons to assess macroinvertebrate populations, warning signs of pollution, effects of pH change on aquatic life, using Lamotte water quality test kits, and using CBL equipment.
Intended for grade levels:
Type of resource:
No specific technical requirements, just a browser required
Cost / Copyright:
1998 April J. Cleveland for Science Junction, NC State University. All rights reserved.
DLESE Catalog ID: DWEL-000-000-000-262
Resource contact / Creator / Publisher:
Author: Ms April J. Cleveland