Age determination of orange roughy,Hoplostethus atlanticus (Pisces: Trachichthyidae) using210Pb:226Ra disequilibria
@article{Fenton1991AgeDO, title={Age determination of orange roughy,Hoplostethus atlanticus (Pisces: Trachichthyidae) using210Pb:226Ra disequilibria}, author={Gwen Elizabeth Fenton and Stephen A. Short and David A. Ritz}, journal={Marine Biology}, year={1991}, volume={109}, pages={197-202} }
Natural levels of210Pb:226Ra in otoliths of orange roughy,Hoplostethus atlanticus, from south-east Australian waters, were measured to determine fish ages radiometrically. Up to maturity, radiometric age estimates were consistent with a single constant otolith growth rate. Radiometric ages for juveniles were comparable with, but greater than, those obtained in a recent, validated New Zealand study which employed counts of annuli on the surface of otoliths. Beyond maturity, radiometric ages were…
129 Citations
Loss of 222Rn from Otoliths of Orange Roughy, Hoplostethus atlanticus, Invalidates Old Ages
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