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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.
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.
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).