Indonesia country information

Common names: Au au, Au-au, Kembung perempuan
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Museum: LPPL JIF141, from southwest Sumatra to Timor Sea (Ref. 5978). Also Ref. 6567.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/id.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Collette, B.B. and C.E. Nauen, 1983
National Database:

Common names from other countries

Maquereau trapu, Caballa rechoncha, Indo Pacific mackerel, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Rastrelliger: Latin, rastra = rake + Latin, gero = to carry.
More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; brackish; pelagic-neritic; oceanodromous (Ref. 51243); depth range 15 - 200 m (Ref. 28016). Tropical; 20°C - 30°C (Ref. 54858); 18°N - 18°S, 93°E - 180°E (Ref. 54858)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Pacific Ocean: Andaman Sea to Thailand, Indonesia, Papua New Guinea, Philippines, Solomon Islands and Fiji.

Length at first maturity / Size / Weight / Age

Maturity: L_m 17.3 range ? - ? cm
Max length : 34.5 cm FL male/unsexed; (Ref. 168); common length : 20.0 cm FL male/unsexed; (Ref. 168); max. reported age: 2.00 years (Ref. 796)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 8 - 11; Dorsal soft rays (total): 12; Anal spines: 0; Anal soft rays: 12; Vertebrae: 31. This species is distinguished by the following characters: body very deep, its depth at posterior margin of opercle 3.7-4.3 times in fork length; head equal to or less than body depth; maxilla covered by lacrimal bone but extending nearly to end of lacrimal; gill rakers very long, visible when mouth is opened, 30-48 on lower limb of first gill arch; numerous bristles on longest gill raker, about 150 on one side in specimens of 12.7 cm, 210 in specimens of 16 cm, and 240 at 19 cm fork length; intestine very long, 3.2-3.6 times fork length; snout pointed; swim bladder present; vertebrae 13 + 18 = 31; interpelvic process small and single; anal spine rudimentary. Colour of spinous dorsal fin yellowish with a black edge, pectoral and pelvic fins dusky, other fins yellowish (Ref. 168, 9684).

An epipelagic, neritic species that tolerates slightly reduced salinities in estuarine habitats and in areas where surface temperature range between 20° and 30°C. It forms schools of equally sized individuals. Batch spawning is believed to extend from March through September. Feeds chiefly on microzooplankton with a high phytoplankton component. Marketed fresh, frozen, canned, dried salted and smoked (Ref. 168, 9684).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Collette, Bruce B. | Collaborators

Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)

IUCN Red List Status (Ref. 130435)

Vulnerable (VU) (A2bd); Date assessed: 01 March 2022

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: highly commercial; gamefish: yes

FAO(Fisheries: production, species profile; publication : search) | FishSource | Sea Around Us

More information

Trophic ecology
Food items
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Food consumptions
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Ecology
Ecology
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Population dynamics
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Length-weight rel.
Length-length rel.
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Life cycle
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Egg(s)
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Distribution
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BRUVS - Videos

Anatomy
Gill areas
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Otoliths

Physiology
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Swimming type
Swimming speeds
Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetics
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Human related
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Aquaculture profiles
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Stamps, coins, misc.

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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 23.3 - 28.4, mean 27.2 (based on 781 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00815 - 0.01119), b=3.06 (3.02 - 3.10), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 2.7 ±0.31 se; based on food items.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (K=0.6-1.6; tmax=2).

Prior r = 1.19, 95% CL = 0.79 - 1.79, Based on 3 data-limited stock assessments.

Fishing Vulnerability (Ref. 59153): Low vulnerability (18 of 100).

Climate Vulnerability (Ref. 125649): High to very high vulnerability (69 of 100).

Price category (Ref. 80766): Very high.

Rastrelliger brachysoma (Bleeker, 1851)