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aqua 18(2)_Priapella chamulae

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Volume 18, Issue 2 – 15 April 2012

Martin Plath, R. Brian Langerhans and Lenin Arias-Rodriguez: Natural history, life history, and diet of Priapella chamulae Schartl,  Meyer & Wilde 2006 (Teleostei: Poeciliidae),pp. 95-102

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SINGLE PAPER

Volume 18, Issue 2 – 15 April 2012

Martin Plath, R. Brian Langerhans and Lenin Arias-Rodriguez: Natural history, life history, and diet of Priapella chamulae Schartl,  Meyer & Wilde 2006 (Teleostei: Poeciliidae),pp. 95-102

Abstract
We report on basic natural history, life history, and diet of Priapella chamulae (Poeciliidae) from Arroyo Tres, a small creek in Tabasco, southern México. The tertiary (adult) sex ratio was heavily female-skewed, female P. chamulae produced medium-sized offspring (~2.3 mg), one clutch at a time (i.e., showed no superfetation), and relied predominantly on yolk for embryo provisioning (Matrotrophy Index: 0.71). Furthermore, P. chamulae at Arroyo Tres had relatively short guts, were highly carnivorous, and preyed mainly on terrestrial arthropods (especially ants).

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