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Stream Order and Species Diversity of Fishes in an Intermittent Oklahoma Stream

Richard C. Harrel, Billy J. Davis and Troy C. Dorris
The American Midland Naturalist
Vol. 78, No. 2 (Oct., 1967), pp. 428-436
DOI: 10.2307/2485240
Stable URL: http://www.jstor.org/stable/2485240
Page Count: 9
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Stream Order and Species Diversity of Fishes in an Intermittent Oklahoma Stream
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Abstract

The relation between stream order and species diversity of fishes in the Otter Creek drainage basin, a 6th-order intermittent system in north-central Oklahoma, was determined. Fishes were collected after eight months of continuous stream flow and again after a severe drought and two or three days of stream flow. Twenty species of fishes were collected. Species diversity values for both collections were remarkably similar. Species diversity increased progressively with stream order and the correlation coefficient between stream order and species diversity was 0.96. Effects of drought and influx of oil field brines are discussed.

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