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ERIC Number: EJ784078
Record Type: Journal
Publication Date: 2003-Oct
Pages: 7
Abstractor: ERIC
Reference Count: 5
ISSN: ISSN-0002-7685
Supercharged Snails for Stream Ecology & Water-Quality Studies
Stewart, Arthur J.; Ryon, Michael G.
American Biology Teacher, v65 n8 p620-626 Oct 2003
Gill-breathing freshwater snails (Family "Pleuroceridae") are ecologically important, abundant in many streams in the United States, and easy to collect and maintain under classroom conditions. These snails can be used in classroom tests to demonstrate effects of pollutants on aquatic organisms. In more advanced classes, students can cage the snails or use tag-release-recapture methods to conduct in-stream studies on water quality. In this article, the authors describe techniques for conducting classroom and field tests with two snail genera ("Elimia" and "Pleurocera"), focusing on examples of methods that are appropriate for high school and college students interested in aquatic ecology or water-quality testing. (Contains 4 figures.)
National Association of Biology Teachers. 12030 Sunrise Valley Drive #110, Reston, VA 20191. Tel: 800-406-0775; Tel: 703-264-9696; Fax: 703-264-7778; e-mail:; Web site:
Publication Type: Guides - Classroom - Teacher; Journal Articles; Reports - Descriptive
Education Level: High Schools; Higher Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A