Spawning adults are found in gravel riffles and runs of clear coastal streams; feeding adults usually in the ocean, but landlocked populations occur (Ref. 1998); ammocoetes in silt, mud, and sand of shallow eddies and backwaters of streams (Ref. 5723). Some individuals may spend up to 42 mo. in saltwater before returning to freshwater (Ref. 12479).
- Farmer, J.G. 1980 Biology and physiology of feeding in adult lampreys. Can. J. Fish. Aquat. Sci. 37:1751-1761. (Ref. 12474) http://www.fishbase.org/references/FBRefSummary.php?id=12474&speccode=2522