The slave ship Segredo departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Segredo; flag: Portugal / Brazil; rig: Yacht; estimated standardized tonnage: 135. People recorded in connection with the voyage: Investor: Rios, José Álvares da Cruz; Captain: Marinho, Joaquim G. The voyage began at Bahia, place unspecified on 22 October 1848. Principal recorded place where captives were acquired: Gallinhas (Sierra Leone). Principal recorded disembarkation place: Bahia, place unspecified. Estimated mortality during the crossing: 7.0%. Recorded outcome: Voyage completed as intended.