and 96 in the second (2008-2009). 15 species were identified: Diomedeidae (n = 4) and Procellariidae (n = 11). The mortality of Antarctic and sub-Antarctic seabirds on the Southern Brazilian Coast can be a consequence of several factors: anthropogenic and climate phenomena. After eleven years, the significant decrease in the number of individuals indicate efficient mitigation measures contributing to a reduction in mortalityof species of seabirds in the South coast of Brazil.