Latitudinal variation in the growth and movement patterns of east-coast Snapper (<em>Chrysophrys auratus</em>). — ASN Events

Latitudinal variation in the growth and movement patterns of east-coast Snapper (Chrysophrys auratus). (#107)

John Stewart 1 , Ash Fowler 1 , Alice Pidd 1 , Wayne Sumpton 2
  1. NSWDPI, Mosman, NSW, Australia
  2. Department of Agriculture and Fisheries, Brisbane, Queensland, Australia

Tagging data spanning 30 years from approximately 25,000 Snapper (Chrysophrys auratus) from Queensland and New South Wales were collated, and recapture data analysed for patterns in growth rates and movements.  Snapper along eastern Australia exhibited significant variation in growth rates, with Snapper growing faster in more northern latitudes.  Patterns of recaptures demonstrated that the majority of Snapper did not move substantially from their locations of tagging; however some individuals moved considerable distances with 10 fish being recaptured more than 500 km from where they were tagged.  The results are discussed in terms of assessment and management of the east-coast Snapper stock.

#ASFB2018