| variation of snail's abundance in two water bodies harboring strains of pseudosuccinea columella resistant and susceptible to fasciola hepatica miracidial infection, in pinar del río province, cuba. | the abundance of freshwater snails in two rural sites of pinar del río, cuba, which harbor pseudosuccinea columella susceptible and resistant to miracidia of fasciola hepatica was followed for one year. susceptible snails were found in the most anthropic site (ipa) whereas the resistant population inhabited the most preserved one (el azufre). only two snail species coexisted with p. columella at ipa site (physa cubensis and tarebia granifera) while five species were found at el azufre, including ... | 2006 | 16410958 |
| detection and genetic distance of resistant populations of pseudosuccinea columella (mollusca: lymnaeidae) to fasciola hepatica (trematoda: digenea) using rapd markers. | twelve natural populations of pseudosuccinea columella snails, sampled in the western and central regions of cuba, were analyzed using the rapd-pcr technique to screen for resistance to fasciola hepatica. ten opa primers previously shown to produce marker bands for resistance and susceptibility were tested. a new population of p. columella (el azufre, pinar del río) exhibited the amplification patterns of resistant snails, and its resistant status was confirmed after experimental exposure to mir ... | 2004 | 15301979 |
| population dynamics of intermediate snail hosts of fasciola hepatica and some environmental factors in san juan y martinez municipality, cuba. | the variation of abundances of intermediate snail hosts of fasciola hepatica in cuba (fossaria cubensis and pseudosuccinea columella) was studied during one year under natural conditions at five sampling sites in san juan y martinez municipality, pinar del rio province, cuba. the effect of some environmental variables on the lymnaeid abundances was also studied. a canonical correspondence analysis showed that both species do not generally occur together in the same habitat and that most factors ... | 2004 | 15273796 |