The church parish records are available for Friedland, of the old duchy of Mecklenburg-Strelitz through familysearch.org.
Have you tried to get these records?https://www.familysearch.org/search/catalog/results#count=20...
I see the ship on Ancestry.com. The Hamburg passenger lists apparently are being indexed before 1877, as now the searches are showing.
Name: Gottfried Nädiger
Departure Date: 15 Mai 1851 (15 May 1851)
Birth Place: Friedland, Mecklenburg
Ship Name: Anna Maria
Port of Departure: Hamburg
Port of Arrival: Quebec (Quebec City)
with 2 kids ages 2 and 6 years old.http://search.ancestry.com/cgi-bin/sse.dll?indiv=1&rank=...