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Bio-Assessment of Local Water System (HS)

Aquatic macroinvertebrates include insects, crustaceans, mollusks, and worms that are found in streams, sloughs and lakes. Researchers have found that certain types of macroinvertebrates are sensitive to pollution, others are tolerant, and others are somewhere in between. Researchers can easily get a fairly accurate measure of the general quality of the water in a freshwater habitat (stream, slough or lake) by sampling the macroinvertebrates in a body of water and tallying up the different types of macroinvertebrates found. This quick, relatively painless exercise will give you a feel for this type of very impactful type of research.

objectives

• Students will explore background information on bio-assessments and macroinvertebrates
• Students will identify and classify macroinvertebrates
• Students will assess water quality based off results of bio-assessment

Topic(s)

Water, biology

type

High school lesson

9-12

Grade(s): 

time needed

6 hours

author

NATURE

national next gen standards

north dakota standards

11-12.2.2. Select and use appropriate instruments, measuring tools, and units of measure to improve scientific investigations
9-10.2.7. Maintain clear and accurate records of scientific investigations
11-12.2.6. Analyze data using appropriate strategies (e.g., interpolation, and extrapolation of data, significant figures, dimensional analysis)
11-12.6.1 Select and use appropriate technologies, tools, and techniques to solve a problem (e.g., computer-assisted tools, Internet, research skills, CBL, graphing calculators)

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