You may be right there depending what you mean by used, paddle steamer gunboats were used there, and also deployed in Canada a few years earlier (according to wiki).
Amusingly you just caused me to discover the naval Battle of Lissa. Two of them in fact, both of them bizarre against-the-odds victories. 1811 was the outnumbered British against the French & Italians. Even more peculiar, 1866 when the Austrian navy defeated a larger Italian force, both fleets having some ironclads and some woods, and with much use of ramming. The ramming led to something of a dead-end in marine architecture in the form of bigger iron rams, which never sunk any enemy ships but occasionally took out friendly ships in accidental collisions.