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Diet overlap of introduced rainbow trout and three native fishes in an Ozark stream

American Fisheries Society Symposium

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Abstract

Private angling groups in Oklahoma have requested permission to stock rainbow trout Oncorhynchus mykiss into streams of northeastern Oklahoma although little is known regarding interactions between introduced rainbow trout and native fishes in these systems. Our study objectives were to assess diet overlap between introduced rainbow trout and native smallmouth bass Micropterus dolomieu, shadow bass Ambloplites ariommus, and bluegill sunfish Lepomis macrochirus in Brush Creek, Oklahoma, a small spring-fed Ozark stream. Rainbow trout diet composition differed from that of all three native fishes in the 2 months of comparison (March and May 2001), and rainbow trout diets contained relatively low numbers of prey. It is unlikely that exploitative competition for food resources occurred between rainbow trout and these three native fishes. ?? 2004 by the American Fisheries Society.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Diet overlap of introduced rainbow trout and three native fishes in an Ozark stream
Series title:
American Fisheries Society Symposium
Volume
2005
Issue:
44
Year Published:
2005
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
475
Last page:
482
Number of Pages:
8