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Diet of the Pecos River Pupfish, Cyprinodon pecosensis (Cyprinodontidae)
Jack R. Davis
The Southwestern Naturalist
Vol. 25, No. 4 (Feb. 16, 1981), pp. 535-540
Published by: Southwestern Association of Naturalists
Stable URL: http://www.jstor.org/stable/3670854
Page Count: 6
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Cyprinodon pecosensis is omnivorous, with a diatom-detritus mixture comprising the bulk of the diet. Other important dietary items include benthic animals, filamentous algae, macrophytes, sand, and seeds. Sex, gut length, and habitat contribute to dietary differences among individual fish. The ability of C. pecosensis to subsist on a variety of foods is highly advantageous for survival in harsh, desert environments.
The Southwestern Naturalist © 1981 Southwestern Association of Naturalists