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Physical Habitat and Fish Assemblage Relationships with Landscape Variables at Multiple Spatial Scales in Wadeable Iowa Streams

Dates

Year
2008

Citation

Rowe, D.C., Pierce, C.L., Wilton, T.F. , 2008, Physical Habitat and Fish Assemblage Relationships with Landscape Variables at Multiple Spatial Scales in Wadeable Iowa Streams: North American Journal of Fisheries Management, v. 29, 1333 p.

Summary

Landscapes in Iowa and other midwestern states have been profoundly altered by conversion of native prairies to agriculture. We analyzed landscape data collected at multiple spatial scales to explore relationships with reach-scale physical habitat and fish assemblage data from 93 randomly selected sites on second- through fifth-order wadeable Iowa streams. Ordination of sites by physical habitat showed significant gradients of channel shape, habitat complexity, substrate composition, and stream size. Several landscape variables were significantly associated with the physical habitat ordination. Row crop land use was associated with fine substrates and steep bank angles, whereas wetland land cover and greater sinuosity and catchment [...]

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  • National and Regional Climate Adaptation Science Centers
  • Northeast CASC

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Landscapes
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citationTypeJournal Article
journalNorth American Journal of Fisheries Management
parts
typePages
value1333
typeVolume
value29

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