Lutjanus argentimaculatus

Mangrove Jack | Creek Red Bream | Dog Bream | Mangrove Red Snapper | Mangrove Snapper | Purple Sea Perch | Red Bream | Red Reef Bream | Red Snapper | River Roman | River Snapper | Rock Barramundi
Lutjanus argentimaculatusLutjanus argentimaculatus, adult, Solitary Is, NSW, Photo: Ian Shaw
Lutjanus argentimaculatusLutjanus argentimaculatus, juvenile, Cardwell, QLD, Photo: Andrew Green
Lutjanus argentimaculatusLutjanus argentimaculatus, Barrow Island, Western Australia, Photo: Graham Edgar
Lutjanus argentimaculatusLutjanus argentimaculatus, adult, Photo: Rick Stuart-Smith
Lutjanus argentimaculatusLutjanus argentimaculatus, adult, Gulf of Carpentaria, NT, Photo: Andrew Green
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Lutjanus argentimaculatus
Lutjanus argentimaculatus
Lutjanus argentimaculatus
Lutjanus argentimaculatus
Lutjanus argentimaculatus


Mediterranean, Temperate Australasia, Tropical Indo-Pacific


Usually reddish tinge to body and dark coloured fins, lacks prominent groove in front of eyes as on L. bohar (Red Bass). Juveniles in estuaries and mangroves, large adults form schools on offshore reefs.


Max Size: 150 cm

Sea Temperature Range: 18.5-30.9°C

Depth: 1-120 m

Habitat Generalization Index: 2.54

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.

Conservation and Rarity

IUCN Status: Not Evaluated

Occurrence: Infrequent (2.0% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Many (12 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.

Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland

Further Information