Streambank Habitat Enhancement with Large Woody Debris.
Abstract
Naturally occurring large woody debris (LWD) (i.e., > 10 cm diameter and 2 m in length) is an important component of many lotic systems. It provides velocity refuge and overhead cover for fishes, substrate for aquatic invertebrates, and can be an important source of particulate organic matter adding to primary productivity of a stream. Large woody debris also plays a major role in stream channel morphology, contributing to formation of pool habitat, increasing meandering, and increasing sediment capacity. Large woody debris dissipates flow energy, resulting in improved fish migration and channel stability. It also provide basking and perching sites for reptiles and birds. Positive effects of LWD are well- documented in high- gradient streams, and recent studies show that LWD is an important habitat component of low- gradient streams with fine substrates.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2000
- Accession Number
- ADA378789
Entities
People
- J. C. Fischenich
- James V. Morrow Jr.