%0 Journal Article %T Comparaci¨®n de caracteres corporales y del veneno de Bothrops alternatus entre poblaciones de las provincias de Buenos Aires y Entre R¨ªos, Argentina %A de Roodt %A Adolfo Rafael %A Lanari %A Laura Cecilia %A Laskowicz %A Rodrigo Daniel %A Botassi %A Sandra %A Rocco %A Daniela Marisa %A Costa de Oliveira %A Vanessa %A Regner %A Pablo Ignacio %J Cuadernos de herpetolog£¿-a %D 2012 %I Scientific Electronic Library Online %X some corporal characters and venom yield of adult specimens of bothrops alternatus from the isolated region of olavarr¨ªa (tandilian region, buenos aires) and the region of continuous distribution of concordia (entre r¨ªos) were compared. corporal length, weight, separation between fangs, venom yield by snake and the amount of protein in the venom were determi-ned. no differences in the distinct characters from specimens from both regions were found (p > 0.05). females were greater than males in both samples, 12-18% (p< 0.05) regarding the corporal length and of 38-57% (p 0.5; olavarr¨ªa= 142 ¡À 65 mg / animal, concordia= 161 ¡À 80 mg / animal) even adjusting the venom yield with the corporal length by the relation mg of venom / corporal length (p > 0.6). no differences were observed in the protein content of the dry venom which was of 0.697 ¡À 0.096 mg of protein / mg of dry venom. from the study of these samples, it could be suggest that specimens from the isolated population of tandilia, does not present variation in the corporal size or the amount of venom yield regarding those of the continuous distribution (concordia). %K snakes %K venom %K morphological characters %K intraspecific variation %K sexual dimorphism. %U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S1852-57682012000100001&lng=en&nrm=iso&tlng=en