9292

• UCREFRP Catalog Number: 9292
• Author: Trammell, M. and T. Chart.
• Title: Aspinall Unit Studies Nursery Habitat Studies Colorado River 1992--1996.
• USFW Year: 1998.
• USFW - Doc Type: Moab, Utah.
• Copyright Material: NO

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APPENDIX A
Table Al . List of habitat types as defined by Rokowski and Schmidt,1996. Utah State University.
Secondary Channel (SeC) -habitats formed by the erosion/ deposition cycle of small secondary channels during passage of
a flood, and revealed by receding water levels. Usually retaining slight flow until late in the year.
ScourChannel (SC) -habitats formed by the erosion/deposition cycle of small channels behind large alternating sandbars.
Scoured out during floods and revealed by receding water levels. Usually relatively deep and permanent.
Migrating Sand Waves (MS) -habitats formed by the relative movement of adjacent migrating sand waves. Relatively
shallow and ephemeral.
Horseshoe Vortex (HS) -habitats formed by scour holes generated at high flows at the upstream ends of islands due to
development of horseshoe vortex patterns. Moderately deep and semi-permanent
Flood Plain (FP) -habitats formed by the inundation of abandoned channels or floodplains. Related to seasonal high flows
or rainfall events.
Flooded Tributary Mouth (FT) -habitats formed by rising river levels flooding into tributary mouths. Related to seasonal
high flows or rainfall events.
Shoreline Eddy (SB) -habitats formed by recirculating areas due to irregularities of the bank
Constricted Reach Eddy (CE) -habitats formed by large eddies generated by constriction of the channel by debris fans.
Shoreline (SH) -Shallow, sloping shoreline areas.