| comparative study of the sensitivity to cadmium of two populations of gambusia affinis from two different sites. | this study aims to demonstrate the influence of animals' origin on their sensitivity toward heavy metals. for this purpose, we compared lc(50) of cadmium in two populations of gambusia affinis captured in two geographically isolated environments in the east of tunisia; oued el gsil in the city of monastir (s2) and oued chenini in the region of gabes (s1). although physicochemical parameters of the water (ph, dissolved oxygen and salinity) are similar in the two studied sites, cadmium concentrati ... | 2009 | 18604632 |