Rw. Gauldie et al., PERIODIC CHANGES IN THE CHEMISTRY OF THE OTOLITH OF MACRURONUS-NOVAEZELANDIAE, Journal of applied ichthyology, 9(3-4), 1993, pp. 150-161
The sagittal otolith of Macruronus novaezelandiae (Merlucciidae; Teleo
stei) showed cycles of strontium, calcium, nitrogen, carbon and oxygen
in proton microprobe traces along both the sulcal to anti-sulcal grow
th axis, and the dorso-ventral growth axis of the otolith. The cycles
of strontium in the dorso-ventral growth axis had peak-to-peak distanc
es similar to those of annual peaks expected from daily microincrement
estimates of age.