These fish are a livebearer
species, and as such, the females are larger and more rounded than the males.
Trophic ecology of the exotic Lerma livebearer
Poeciliopsis infans (Cyprinodontiformes: Poeciliidae) in the Lago de Ptzcuaro, Central Mexico.
Edwards University, "Fighting with swords: genital combat as an alternative explanation for same sex mating in a coercive livebearer
(Gambusia affinis)," advisor, Raelynn Deaton Haynes; and Clint Morris, undergraduate, St.
The most abundant exotics were the lerma livebearer
Poeciliopsis infans (3,679 individuals and 83% of frequency), common carp Cyprinus carpio (1,721 individuals and 68% of frequency), and tilapiine cichlids Oreochromis spp.
Sexual competition, coercive mating and mate assessment in the one-sided livebearer
, Jenynsia multidentata: are they predictive of sexual dimorphism?
However, there was a significant flooding event during this period and flooding has been known to exterminate isolated populations of other livebearer
species (Collins et.
We collected the clingfishes described here along with multispotted goby (Sicydium multipunctatum) (sites 1-3), leopard splitfin (Xenotaenia resolanae) (sites 1-2), golden livebearer
(Poeciliopsis baenschi) (sites 2-3), blackspotted livebearer
(Poeciliopsis turneri) (site 2), mountain mullet (Agonostomus monticola) (site 3), and spotted sleeper (Eleotris picta) (site 3).
Phylogeography of the livebearer
Xenophallus umbratilis (Teleostei: Poeciliidae): glacial cycles and sea level change predict diversification of a freshwater tropical fish.
The Lerma livebearer
Poeciliopsis infans (Woolman 1894) is a fish endemic to the Lerma-Grande de Santiago river basin and tributaries of the Ameca, Armeria, Coahuayana and Balsas rivers in Mexico (Miller et al.
The porthole livebearer
Poeciliopsis gracilis (Heckel 1848) is of Central American origin (Meffe 1989, Miller et al.
This small omnivorous livebearer
is an internal fertilizer and is sexually dimorphic (females typically are larger than males).
So in fact, 50% of the lake fish fauna in numerical terms are livebearer