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David Awtrey, Washburn High School, Washburn, Wisconsin
Lynn Cimino-Hurt,Wasatch Academy, Mount Pleasant, Utah
Thomas Donley, St. Edward’s School, Vero Beach, Florida
Joel Felix, Three Forks High School, Three Forks, Montana
Nancy Habenicht, St. Catherine’s School, Richmond, Virginia
Dr. David Jenkins, Mentor, Professor of Ecology, University of Illinois-Springfield,
Springfield, Illinois
Objectives
- Examine directly the affect of additional nutrients on algae growth.
- Determine the limiting nutrient in a system.
- Involve students in preparation, field-testing, and interpretation of results.
- Use of a scientific model to examine a complex problem.
Introduction
Controlled experiments with nutrient diffusing pots are a simple, inexpensive method of illustrating several aspects of aquatic ecology. The concept of nutrient loading and limiting factors for growth can
be concretely illustrated for students. The activity involves work both in the lab and in the field and allows controlled experimentation to be a part of water quality monitoring. The activity can easily
extended to include a number of activities including calculating biodiversity.
Background
Materials and Methodology
Teacher Notes for Classroom Implementation
Resources and Links and References Cited
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