This study was carried out with assistance from the Fisheries
Research Development, Project no. 2006/205. We thank Michael
Burke and the staff at the Queensland Department of Primary
Industries (Bribie Island Aquaculture Research Centre), and Matt
Kenway and the staff at the Australian Institute of Marine Science
(Townsville), for their contributions to spawning and rearing of the
experimental families. We thank Matt Hamilton and Sharon Appleyard
for their critical comments on the manuscript