Indonesia country information

Common names: Ajong ajong, Ajong-ajong, Alaliu
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: From southwest Sumatra to Bali Strait (Ref. 5978). Also Ref. 6567.
National Checklist:
Country Information: httpss://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:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Thazard ponctué indo-pacifique, Carite del Indo-Pacífico, Spotted seerfish, ... more

Main reference

Collette, B.B. and C.E. Nauen. 1983. (Ref. 168)
References | Biblio | Coordinator : Collette, Bruce B. | Collaborators

Size / Weight / Age

Max length : 76.0 cm FL male/unsexed; (Ref. 168); common length : 55.0 cm FL male/unsexed; (Ref. 9684)

Length at first maturity
L_m 40.0, range 33 - 46.5 cm

Environment

Marine; brackish; pelagic-neritic; oceanodromous (Ref. 51243); depth range 15 - 200 m (Ref. 9684), usually 20 - 90 m (Ref. 12260)

Climate / Range

Tropical, preferred 28°C (Ref. 107945); 38°N - 7°S, 49°E - 134°E (Ref. 54881)

Distribution

Indo-West Pacific: Persian Gulf, India and Sri Lanka (Ref. 9684) to southeast Asia, north to Hong Kong and Wakasa Bay, Sea of Japan.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 15 - 18; Dorsal soft rays (total): 18-24; Anal spines: 0; Anal soft rays: 19 - 23; Vertebrae: 47 - 52. Interpelvic process small and bifid. Swim bladder absent. Body entirely covered with small scales. Lateral line with many auxiliary branches extending dorsally and ventrally in anterior third, curving down toward caudal peduncle. Intestine with 2 folds and 3 limbs. Sides silvery white with several rows of round dark brownish spots scattered in about three irregular rows along the lateral line. First dorsal fin membrane black.

A pelagic migratory fish inhabiting coastal waters at depths between 15-200 m; sometimes entering turbid estuarine waters; usually found in small schools (Ref. 9684). Feeds mainly on small schooling fishes (especially sardines and anchovies), squids and crustaceans (Ref. 9684). Fishing peaks in the months of November and December in Eastern Thailand, late Dec and January in the northern part of the Gulf and January to March in its western part. Caught with midwater trawls, purse seines, bamboo stake traps, and by trolling (Ref. 9684). Marketed mainly fresh; also dried-salted (Ref. 9684), smoked and frozen (Ref. 9987). Small quantities of frozen product are exported to Europe and North America (Ref. 9987).

IUCN Red List Status (Ref. 115185)

Data deficient (DD)

Threat to humans

Harmless

Human uses

Fisheries: highly commercial; gamefish: yes

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

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

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.3 ±0.67 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18; Fec=385,000)

Vulnerability (Ref. 59153)
Moderate vulnerability (42 of 100)

Price category (Ref. 80766)
Very high

Scomberomorus guttatus (Bloch & Schneider, 1801)