Leaf Pack Experiment Details at ALTS
Placement Information

Placement Date Sept. 10, 2026
Number of Packs Placed 1
Placement Air Temperature Unknown °C
Placement Water Temperature Unknown °C
Stream Habitat Type Riffle
Leaf Pack Type and Composition

Predominant Leaf Species:

Experiment was not performed with leaf pack. Measurements done through kicking rocks that reveal macro invertebrates.


Retrieval Information

Retrieval Date Sept. 10, 2026
Number of Packs Retrieved 1
Retrieval Air Temperature Unknown °C
Retrieval Water Temperature Unknown °C
Storm and Non-Storm Events

Did storms occur while your leaf packs were in the stream? Unknown
Did flooding occur? Unknown
Was this site experiencing a drought during your experiment? Unknown

Summary Analysis
Results Overview

Total Number of Individuals Found 61
Pollution Tolerance Index Score 19
Pollution Tolerance Index Rating Good - Some organic pollution
Percent EPT 27.87%




Comments

Our experiment was not done through a leaf pack. We placed webs to catch macro invertebrates released from kicking rocks for about 15 times at sites.