Seasonal and environmental codes in the chemistry of the scales of the hoki Macruronus novaezelandiae.
Hoki (Macruronus novaezelandiae: Merluccidae) scales do not have conventional annual (annuli) marks, but when observed by transmitted light showed light and dark bands of the type produced by intra-annual variation in the growth rate of the internal lamellae of the scale. The calcium, fluorine, strontium and zinc content of the hoki scale was measured with a proton microprobe and showed cycles in elemental composition that could be interpreted as seasonal.
Gauldie
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RW
Hawaii Institute of Geophysics, School of Ocean, Earth Sciences and Technology, University of Hawaii, Honolulu, Hawaii 96822, USA.
West
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IF
Coote
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