The Macroinvertebrate World

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Presentation transcript:

The Macroinvertebrate World By: Alena, Alexa, Gabi, & Ally

Research Question Hypothesis How does the velocity affect macroinvertebrates in still pool areas versus fast pool areas? Hypothesis HO - There will be no difference between fast and slow currents in macroinvertebrate composition. HA - There will be no difference between fast and slow currents in macroinvertebrates.

Background for topic What is a macroinvertebrate: Organisms without backbones Studied macroinvertebrates in riparian areas Identification based on wings, tail filaments, gills, legs, & shell

Methods Materials Dip nets Species identification keys Thermometer Magnifying glass Tape measure Orange Walking stick Procedure Go to each site Take physical measurements (velocity, pebble size, depth, stream width) Kick rocks for 10 seconds Collect macroinvertebrates Identify macroinvertebrates Record & Analyze data

Results

Conclusion To conclude our project we found more macroinvertebrates near the river bank on the surface of the water. This means the velocity of the water flow allows the macroinvertebrates to live there.