| genetic divergence between cave and surface populations of astyanax in mexico (characidae, teleostei). | a study of genetic diversity at microsatellite loci and the mitochondrial dna (mtdna) cytochrome b gene was carried out to assess genetic relationships among four mexican cave (pachon, sabinos, tinaja, chica) and four surface populations of astyanax fasciatus (characidae) from northeast mexico and the yucatan. with the exception of chica, the cave populations were all characterized by extremely low microsatellite variability, which most likely resulted from bottleneck events. population analyses ... | 2003 | 12675825 |
| monogeneans of freshwater fishes from cenotes (sinkholes) of the yucatan peninsula, mexico. | during a survey of the parasites of freshwater fishes from cenotes (sinkholes) of the yucatan peninsula the following species of monogeneans were found on cichlid, pimelodid, characid and poeciliid fishes: sciadicleithrum mexicanum kritsky, vidal-martinez et rodriguez-canul, 1994 from cichlasoma urophthalmus (günther) (type host), cichlasoma friedrichsthali (heckel), cichlasoma octofasciatum (regan), and cichlasoma synspilum hubbs, all new host records; sciadicleithrum meekii mendoza-franco, sch ... | 1999 | 10730199 |