Morphometric description of lymnaeid snails from Beagle Channel, Tierra del Fuego

CUERVO P.; MERA Y SIERRA RL.; MORALES J.; SIDOTI L.

Cordoba

Otro; 1º Reunión Conjunta de Sociedades de Biología de Argentina; 2007

Sociedad Argentina de Biología, Sociedad de Biología de Córdoba, Sociedad de Biolgía de Cuyo

Studies related to Lymnaeid snails from southern Argentina are very scarce, in spite of its importance in the transmission of fascioliasis. Our objective is to describe morphologically a population from Tierra del Fuego and thus characterize it more fully. On the margins of Lasifashaj river, 83 Lymnaea snails were collected. Their identification was done according to the keys of Castellanos et al. In the laboratory, using a calibrated microscope, we measured (in mm.) the following parameters: Shell length (SL), Aperture Length (AL), Last Spire Length (LSL), Aperture Width (AW), and Shell Width (SW)Lymnaea snails were collected. Their identification was done according to the keys of Castellanos et al. In the laboratory, using a calibrated microscope, we measured (in mm.) the following parameters: Shell length (SL), Aperture Length (AL), Last Spire Length (LSL), Aperture Width (AW), and Shell Width (SW)et al. In the laboratory, using a calibrated microscope, we measured (in mm.) the following parameters: Shell length (SL), Aperture Length (AL), Last Spire Length (LSL), Aperture Width (AW), and Shell Width (SW) LS AL LSL AW SW Mean 8,11 4,56 6,84 3,26 4,608,11 4,56 6,84 3,26 4,60 SD 1,73 0,92 1,46 0,69 0,96 These results are similar to those of L. diaphana, species that is distributed all over Patagonia, including Tierra del Fuego. This information will allow, together with future morpho- anatomic and molecular studies, characterize the populations of Lymnaied snails present in Patagonia.1,73 0,92 1,46 0,69 0,96 These results are similar to those of L. diaphana, species that is distributed all over Patagonia, including Tierra del Fuego. This information will allow, together with future morpho- anatomic and molecular studies, characterize the populations of Lymnaied snails present in Patagonia.L. diaphana, species that is distributed all over Patagonia, including Tierra del Fuego. This information will allow, together with future morpho- anatomic and molecular studies, characterize the populations of Lymnaied snails present in Patagonia.