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Some Aspects of Biology of the Longfin Dace, a Cyprinid Fish Characteristic of Streams in the Sonoran Desert

W. L. Minckley and Willard E. Barber
The Southwestern Naturalist
Vol. 15, No. 4 (May 25, 1971), pp. 459-464
DOI: 10.2307/3670225
Stable URL: http://www.jstor.org/stable/3670225
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Some Aspects of Biology of the Longfin Dace, a Cyprinid Fish Characteristic of Streams in the Sonoran Desert
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Abstract

The longfin dace spawns over a prolonged period, December through July, in low-desert streams, utilizing saucer-shaped depressions in sandy-bottomed, shallow pools. No territoriality is evident. Females enter a nest area to be serviced by one or more males in a "chase and flurry" type of spawning behavior. The species is highly opportunistic, dispersing rapidly to newly flooded stream segments in periods of high runoff. It is capable of persisting for an amazing period of time in desiccating streams through various behavioral means.

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