7962

• UCREFRP Catalog Number: 7962
• Author: Wolz, E. R. and D. K. Shiozawa.
• Title: Benthic Invertebrates from the Green River, UT, Benthic Macroinvertebrate Communities of the Green River, at the Ouray National Wildlife Refuge - master's theses.
• USFW Year: 1993.
• USFW - Doc Type: Brigham Young University,
• Copyright Material: NO

ABSTRACT
Benthic macroinvertebrates from four habitat types (river channel, ephemeral side
channel, and seasonally inundated wetland) were examined in the Green River at the
Ouray National Wildlife Refuge, Uinta County, Utah. Four major taxa (Nematoda,
Oligochaeta, Ceratopogonidae, and Chironomidae) were counted and density estimates
for each were calculated. Cluster analysis of these densities showed that habitat types
with comparable flow conditions were the most similar. Highest to lowest overall
benthic invertebrate densities of the four habitats were as follows: Ephemeral side
channel, river backwater, seasonally inundated wetland and river channel.
Key Words: Nematoda, Oligochaeta, Ceratopogonidae, Chironomidae, River
channel, backwater, side channel, wetland, benthos, Green River.