longfinned trevally
Atropus armatus
- Usual depth5–76 m
- Water temperature22–30 °C
- Best monthsJune and July
- How commonRare
Photo credit: (c) rcoliveira84, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
The longfin trevally, also known as the longfin kingfish, longfin cavalla or armed trevally, is a species of inshore marine fish in the jack family, Carangidae. The species is common in tropical to subtropical waters of the Indo-Pacific, ranging from South Africa in the west to Japan in the east, typically inhabiting inshore reefs and bays. The species is easily distinguished by its elongate dorsal and anal fin lobes and filamentous dorsal rays, as well as its scaleless breast. Longfin trevally are pelagic predators, taking a variety of small fish, cephalopods and crustaceans, and reach sexual maturity at around 21 cm. The species has a maximum known length of 57 cm and weight of 3.5 kg. The longfin trevally has a very complex taxonomic history which is closely intertwined with another currently valid species, Carangoides ciliarius, which may yet prove to be synonymous. Longfin trevally are of minor importance to fisheries throughout their range and are considered good table fish, and are occasionally taken by anglers.
Text from the Wikipedia article “Longfin trevally”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 11 records
- February: 8 records
- March: 11 records
- April: 6 records
- May: 9 records
- June: 19 records
- July: 29 records
- August: 11 records
- September: 10 records
- October: 6 records
- November: 16 records
- December: 13 records
Depth and water temperature
Depth
Mostly recorded at 5–76 m · Deepest record: 100 m
Water temperature
Recorded in surface water of 22–30 °C
Names and classification
- English
- longfinned trevally, longfin trevally
Names in 5 more languages
- Filipino
- Talakitok
- French
- Carangue sap-sap
- Japanese
- Yoroiaji, ヨロイアジ
- Thai
- ปลากะมงแซ่, ปลาจุ้ยจิน
- Simplified Chinese
- 甲若鰺
Other scientific names: Carangoides armatus, Carangoides ciliarius, Caranx armatus, Caranx ciliaris, Caranx ciliarius, Caranx pescadorensis, Caranx schlegeli, Citula armata, Citula armatus, Citula ciliaria, Citula pescadorensis, Sciaena armata
Similar species
Bump-nosed TrevallyAtropus hedlandensis
Cale Cale TrevallyAtropus mentalis
Giant trevallyCaranx ignobilis
Bluefin trevallyCaranx melampygus
Bigeye trevallyCaranx sexfasciatus
African pompanoAlectis ciliaris
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 136 open-data records from 1775 to 2015.
- Species data updated October 26, 2026.
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