Comparison of
Aquatic Macro-invertebrate Abundance and Diversity Within a Pond and Stream

by,
Connor, Erik,
Karsen, & Sarah

INTRODUCTION

• Are there more maco-invertebrates in moving or still water?
• Hypothesis #1: Greater abundance & diversity in streams.
• Hypothesis #2: Greater abundance & diversity in ponds.

METHODS

• PSU students collected water samples from the pond and stream
• 4 groups observed pond samples
• 4 groups observed stream samples
• Used ice cube trays1qw to sort based on physical appearance
• Recorded findings on data sheet

RESULTS

CONCLUSIONS

• The pond had more abundance and diversity
• The pond has more nutrients
• The pond has warmer water
• The pond has places to hide
• The pond has fewer predators