US Forest Service Forest Service    Pacific Northwest Research Station Pacific Northwest Research Station

Portable Electronic Presentations

A portable electronic presentation is an online \ offline interactive learning resource
representing key scientific talks in an on-demand rich media format.

What is a PEP?           

The Biology of Culvert Barriers: Movement of Dolly Varden and Cutthroat in High-Gradient Headwater Streams

Back to the PEP Index

Movement of Dolly Varden Presenter: M. D. Bryant
Length: 2 parts, 15 min and 13 s

View: Part 1 | Part 2


       Part 1

  • Goals
  • Objectives
  • Approach to the Problem
  • Location
  • Study Site- Hobo Creek
  • Methods
  • Methods Cont.
  • Power Source
  • Full Duplex System
  • Full Duplex Weir
  • Issues
  • Full Duplex Present System
  • Half Duplex System
  • Comparison

       Part 2

  • The Primary Issue
  • Results
  • Length Frequency Distribution
  • How Far do They Move
  • When do They Move (Upstream)
  • When do They Move (Downstream)
  • What Stream Stage (Upstream)
  • What Stream Stage (Downstream)
  • Summary / Conclusions