Scomber australasicus

Slimy mackerel | Chub Mackerel | Common Mackerel | Japanese Mackerel | Pacific Mackerel | Slimies | Spotted Chub Mackerel
Scomber australasicus
Scomber australasicus, Batemans Bay, NSW, Photo: Andrew Green
Scomber australasicus
Scomber australasicus, QLD, Australia, Photo: Rick Stuart-Smith
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Scomber australasicus
Scomber australasicus

Same Genus


Temperate Australasia, Temperate northern Pacific, Tropical Eastern Pacific, Tropical Indo-Pacific


Streamlined bodies with wavy bars along the back, spots in the lower region of the sides, and five to six finlets in front of the tail. Adults occur in large schools off the southern Australian coastline while small animals are often found inshore. The species has an oily flesh and is generally used as bait or for canning rather than eaten fresh.


Max Size: 44 cm

Sea Temperature Range: 13.8-28.1°C

Depth: 0-200 m

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: Least Concern

Occurrence: Infrequent (2.9% 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: Large aggregations (110 per transect)

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

Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney