Microhabitat Use by Smallmouth Bass in an Ozark Stream

2007 ◽  
Vol 22 (2) ◽  
pp. 189-199 ◽  
Author(s):  
Jeffrey D. Fore ◽  
Daniel C. Dauwalter ◽  
William L. Fisher
Keyword(s):  
Smallmouth Bass ◽  
Microhabitat Use

scholarly journals Application of Diel Feeding Chronology to Habitat Suitability Analysis of Warmwater Stream Fishes

1992 ◽  
Vol 49 (7) ◽  
pp. 1417-1430 ◽  
Author(s):  
Thomas J. Kwak ◽  
Michael J. Wiley ◽  
Lewis L. Osborne ◽  
R. Weldon Larimore
Keyword(s):  
Common Carp ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Habitat Suitability ◽  
Smallmouth Bass ◽  
Microhabitat Use ◽  
Micropterus Dolomieu ◽  
Daily Ration ◽  
Suitability Analysis ◽  
Longear Sunfish

Diel feeding chronology and daily ration were determined from stomach or foregut contents of common carp (Cyprinus carpio), golden redhorse (Moxostoma erythrurum), channel catfish (Ictalurus punctatus), smallmouth bass (Micropterus dolomieu), and longear sunfish (Lepomis megalotis) in the Vermilion River, Illinois. Feeding was highly variable among individuals, hours, and months for each species. Discontinuous feeding was detected in common carp, golden redhorse, and channel catfish. Common carp and the two centrarchid species fed with greatest intensity near sunrise and sunset; golden redhorse and channel catfish feeding was highest at night. Daily ration estimates were higher for fishes with stomachs than those for stomachless species. Microhabitats occupied by fish over the diel period were identified using nondisruptive techniques: direct observation, prepositioned electrofishing, and radiotelemetry. Microhabitat use during high-feeding periods was significantly different [Formula: see text] than that during low feeding for at least one habitat variable in each species examined. Association with cover also varied between feeding regimes. Our findings suggest that realism of instream flow assessments may be improved if habitat suitability criteria are stratified by feeding regime.

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