Size and age compositions of yellowtail scad ( Trachurus novaezelandiae Richardson 1843) and blue mackerel ( Scomber australasicus Cuvier 1832) were studied in the inshore purse‐seine fishery off the coast of New South Wales, Australia. Ages were assigned by counting annual marks in otoliths for both species. Sampling from two regions showed no geographical differences in the age compositions of catches for either species. The...

Gonad development, seasonal changes in gonad activity, and size at maturity were investigated in female and male yellowtail kingfish ( Seriola lalandi; Carangidae) collected from New South Wales, Australia between August 1995 and June 1996. Kingfish displayed peak gonad activity in December suggesting a summer spawning period. Males matured at smaller sizes than females. Females first matured at 698 mm fork length (FL) and 3+...