Abstract
Otoliths from oyster toadfish were measured and examined for annuli and daily increments. Distinct annual increments made it feasible to determine growth parameters which demonstrated sexual dimorphism in growth. Microincrements, judged to be daily on the basis of two separate criteria, were enumerated and measured to provide verification of annuli. Utilization of multivariate mathematical models relating age to otolith growth and somatic growth simplified age determination. These methods for examining otoliths should be applicable to other fish species and make it possible to link growth and mortality rates to life history and environmental occurrences.
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