Morales-Betancourt, Mónica Andrea, and Carlos Andrés Lasso-Alcalá. “Proposal of a Non-Lethal Visual Census Method to Estimate Freshwater Stingray Abundance”. Universitas Scientiarum 21, no. 1 (February 10, 2016): 23–32. Accessed April 19, 2024. https://revistas.javeriana.edu.co/index.php/scientarium/article/view/15364.