Rastrelliger kanagurta

Mouth Mackerel | Chub Mackerel | Indian Mackerel | Long-jawed Mackerel | Rake-gilled Mackerel | Striped Mackerel
Rastrelliger kanagurta
Rastrelliger kanagurta, Bali, Indonesia, Photo: Ian Shaw
Rastrelliger kanagurta
Rastrelliger kanagurta, Photo: Rick Stuart-Smith
Rastrelliger kanagurta
Rastrelliger kanagurta, Naigani Is, Fiji, Photo: Andrew Green
Rastrelliger kanagurta
Rastrelliger kanagurta, Raja Ampat, Indonesia, Photo: Andrew Green
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Rastrelliger kanagurta
Rastrelliger kanagurta
Rastrelliger kanagurta
Rastrelliger kanagurta


Tropical Indo-Pacific


Extremely large mouth is an obvious distinctive feature when feeding on plankton. Black spot behind pectoral fin also distinctive. Large schools.


Max Size: 35 cm

Sea Temperature Range: 23.8-30.7°C

Depth: 20-90m

Habitat Generalization Index: N/A

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: Data Deficient

Occurrence: Rare (1.0% 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 (25 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