Loss of 222Rn from Otoliths of Orange Roughy, Hoplostethus atlanticus, Invalidates Old Ages

Abstract

Gamma-ray detection methods show diffusion of 222Rn out of otoliths of orange roughy Hoplostethus atlanticus and variable uptake of 226Ra into otoliths of H. atlanticus both of which invalidate the assumptions of closure to 222Rn diffusion and the constant uptake of 226Ra that are critical to the 210Pb: 226Ra method of age estimation from otoliths of H. atlanticus.