- Longitudinal scale rows above lateral line mostly horizontal
- Large black spot usually present below dorsal-fin soft rays, mainly above lateral line
Sides yellowish or silvery with reddish brown spot on each scale.
Up to 70 cm TL.
Indo-West Pacific in tropical waters.
Coral and rocky reefs, tolerating brackish waters in estuaries; from the surface to at least 80 m depth.
Feeds primarily on fishes, but also crustaceans and cephalopods. Juveniles occur in mangrove areas and estuaries1, while adults have been observed schooling in turbid waters. Females grow to larger sizes than males. Size and age of maturity estimates vary depending on latitude and ageing techniques.2 In the coastal waters of northern Australia females reached first maturity between 54.9 and 69.0 cm FL, and between 6 and 9 years. Males reached first maturity between 59.0 and 62.0 cm FL, and between 6 and 10 years.3 In northern Australia, maximum age is estimated at 28 years.2
Caught mainly with handlines, bottom longlines, traps, and bottom trawls.
- 1.Kiso K, Mahyam M. Distribution and feeding habits of juvenile and young John’s snapper Lutjanus johnii in the Matang mangrove estuary, west coast of Peninsular Malaysia. Fisheries science [Internet]. 2003;69(3):563–8. Available from: https://doi.org/10.1046/j.1444-2906.2003.00657.x
- 2.Marriott R, Cappo M. Comparative precision and bias of five different ageing methods for the large tropical snapper Lutjanus johnii. Asian fisheries science [Internet]. 2000;13(2):149–60. Available from: http://epubs.aims.gov.au/11068/1477
- 3.Cappo M, Marriott RJ, Newman SJ. James’s rule and causes and consequences of a latitudinal cline in the demography of John’s Snapper Lutjanus johnii in coastal waters of Australia. Fishery Bulletin [Internet]. 2013;111(4):309–24. Available from: https://doi.org/10.7755/FB.111.4.2