thumbnail

Effects of flooding on abundance of native and nonnative fishes downstream from a small impoundment

North American Journal of Fisheries Management

By:
, , , and
DOI: 10.1577/1548-8675(2003)023<0503:EOFOAO>2.0.CO;2

Links

Abstract

Flooding can benefit native fishes in southwestern streams by disproportionately displacing nonnative fishes. We examined how the presence of an upstream impoundment affected this relationship in lower Sonoita Creek, Arizona. Nonnative species not found in the reservoir decreased in abundance in lower Sonoita Creek after flooding. The catch and relative abundance of some nonnative species found in both the reservoir and the creek increased in lower Sonoita Creek after flooding. Movement of nonnative fishes out of the reservoir via the spillway during periods of high water probably contributes to the persistence and abundance of these species downstream. Both preventing nonnative fishes from escaping reservoirs and the release of flushing flows would aid conservation of native southwestern fishes downstream.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effects of flooding on abundance of native and nonnative fishes downstream from a small impoundment
Series title:
North American Journal of Fisheries Management
DOI:
10.1577/1548-8675(2003)023<0503:EOFOAO>2.0.CO;2
Volume
23
Issue:
2
Year Published:
2003
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
North American Journal of Fisheries Management
First page:
503
Last page:
511
Number of Pages:
9