Nm. Halden et al., MICRO-PIXE STUDIES OF SR ZONING IN ARCTIC CHARR OTOLITHS - MIGRATORY BEHAVIOR AND STOCK DISCRIMINATION, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 109, 1996, pp. 592-597
Micro-PIXE has been used to determine the content of strontium in the
growth zones of Arctic charr otoliths. A well-defined correspondence i
s observed between the optically observed growth zones and the stronti
um zoning pattern. Line-scan data indicate whether or not the fish con
cerned is anadromous, and they define the years in which migration to
the sea has taken place; they also are sensitive to the geographic ori
gin of the fish. These results suggest that micro-PIXE can be a useful
tool in the management and conservation of the Arctic charr.