Unusual dominance by desert pupfish (Cyprinodon macularius) in experimental ponds within the Salton Sea Basin

Southwestern Naturalist
By: , and 

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Abstract

In October 2006, months after shallow experimental ponds in the Salton Sea Basin were filled with water from the Alamo River and Salton Sea, fish were observed in several ponds, although inlets had been screened to exclude fish. During October 2007November 2009, nine surveys were conducted using baited minnow traps to document species and relative abundance of fish. Surveys yielded 3,620 fish representing five species. Desert pupfish (Cyprinodon macularius), the only native species encountered, was the most numerous and comprised >93% of the catch. Nonnative species included western mosquitofish (Gambusia affinis, 4.1%), sailfin molly (Poecilia latipinna, 2.8%), and tilapia (a mixture of hybrid Mozambique tilapia Oreochromis mossambicus ?? O. urolepis and redbelly tilapia Tilapia zillii, <0.1%). Dominance by desert pupfish, which persisted over our 2 years of study, was unusual because surveys conducted in nearby agricultural drains yielded relatively few desert pupfish.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Unusual dominance by desert pupfish (Cyprinodon macularius) in experimental ponds within the Salton Sea Basin
Series title Southwestern Naturalist
DOI 10.1894/F12-CMT-06.1
Volume 56
Issue 3
Year Published 2011
Language English
Contributing office(s) Western Fisheries Research Center, Salton Sea Science Office
Description 8 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Southwestern Naturalist
First page 385
Last page 392
Country United States
State California
Other Geospatial Salton Sea