Abundance and Habitat Use of an Uncommon Fish, Notropis perpallidus (Cyprinidae): Comparison with Sympatric Congeners

Notropis perpallidus, the peppered shiner, occurs over most of its historical range in southern Arkansas and southeastern Oklahoma, but its abundance has declined in certain local areas, especially downstream from reservoirs. Although N. perpallidus is restricted to a small geographic area and its p...

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Bibliographic Details
Published in:The Southwestern naturalist 1987-06, Vol.32 (2), p.251-260
Main Authors: Wagner, Bruce A., Echelle, Anthony A., Maughan, O. Eugene
Format: Article
Language:English
Subjects:
Creeks
Deep water
Freshwater fishes
Gravel
Habitats
Microhabitats
Rubble
Streams
Tributaries
Wildlife habitats
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Description
Summary:Notropis perpallidus, the peppered shiner, occurs over most of its historical range in southern Arkansas and southeastern Oklahoma, but its abundance has declined in certain local areas, especially downstream from reservoirs. Although N. perpallidus is restricted to a small geographic area and its population densities are low, a multivariate analysis of niche breadth showed that, within its geographic range, it is one of the most broadly distributed shiners. Principal components analysis of habitat variables revealed that the peppered shiner occupies microhabitats similar to those of N. snelsoni and N. volucellus--primarily the deeper (> 50 cm), slower-flowing (< 0.3 cm/sec) waters in a given stream segment.
ISSN:0038-4909
DOI:10.2307/3671568