_ To migrate or move from one habitat to another; in the case of anadromous fish such as salmon, to migrate or move in a downstream direction from fresh riverine systems to estuarine and marine systems as juveniles.
Emigrate is the name of a band led by Richard Kruspe, the lead guitarist and co-founder of Rammstein. It began as a side-project of Kruspe's in 2005, when Rammstein decided to take some time off from touring and recording.