The record you found shows one Carl August Pettersson who was born in Bolstad and lived in Göteborg. This could be him on line #11. He was born 11 Mar 1858 in Bolstad. He never officially left Göteborg but went to some unknown place, see the unreadable, undated comment to the right. This was very common for sailors.
Göteborgs Domkyrkoförsamling AIa:13 (1873-1883) Image 329 / page 647 (AID: v35189.b329.s647, NAD: SE/GLA/13180)
The ship Miltiades was previously owned by the Dickson family of Göteborg. It was sold in 1868 and was abandoned in 1877.http://svartvik-hemmanet.blogspot.se/2011/11/fartyg-som-till...
"33. Miltiades. Barkskepp. Byggd 1846 i Thomas Town, Maine, USA. Köpt 1855. Såld 1868. Befälhavare C Lidbeck. Övergetts 1877."