C. F. Sperber

Impacts of the Samarco tailing dam collapse on metals and arsenic concentration in freshwater fish muscle from Doce River, southeastern Brazil

This study assesses the impact of the Samarco tailings dam collapse on metal and arsenic concentrations in freshwater fish muscle tissue from the Doce River, finding higher arsenic and mercury levels in affected sites.

Effectiveness of active learning for ecology teaching: the perspective of students vs their grades

This study evaluates active learning effectiveness in ecology education by comparing student perceptions with exam grades, finding that active tasks improve learning and that prior knowledge and teacher engagement are key factors.