Leaf Pack Experiment Details at Birch Run at Hollow RD Bridge
Placement Information

Placement Date Sept. 19, 2025
Number of Packs Placed 3
Placement Air Temperature Unknown °C
Placement Water Temperature Unknown °C
Stream Habitat Type Riffle
Leaf Pack Type and Composition

Predominant Leaf Species:

Maple
Oak
Tulip Poplar


Retrieval Information

Retrieval Date Oct. 12, 2025
Number of Packs Retrieved 3
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? No
Did flooding occur? No
Was this site experiencing a drought during your experiment? No

Summary Analysis
Results Overview

Total Number of Individuals Found 98
Pollution Tolerance Index Score 15
Pollution Tolerance Index Rating Fair - Substantial pollution likely
Percent EPT 70.41%




Comments

There were three mudpuppy salamanders in one of the leaf packs. I often see crawdads in this stream but none were in the leaf packs.