FERDAUIA FERDAU - (FABRICIUS, 1775)
Picture courtesy of: Alain Daoulas
Actinopterygii (Gigaclass) > Actinopteri (Class) > Teleostei (Subclass) > Carangiformes (Order) > Carangoidei (Suborder) > Carangidae (Family) > Caranginae (Subfamily) > Ferdauia (Genus)
Carangue à barres, Carangue tachetée, Carangue la nation, Blue trevally, Banded trevally, Barred trevally, Bar juack, Striped jack, Querstreifen-makrele, Blou koningvis, Jurel manchado, Nanyô-kaiwari, Kurohira-aji, クロヒラアジ, 흑전갱이, 半裸胸鰺, 印度平鰺, Cá Khế chấm vàng,
Color
The body is a blue-green to yellow-green above, becoming silvery below, with adults having five or six dusky vertical bands which usually persist after death. Numerous, inconspicuous golden spots often are present on the sides, mostly above the level of the pectoral fins. The soft dorsal and anal fins are pale yellowish-green, and the anterior lobes of both often have white to blue tips. The caudal fin is yellow green, having a dark trailing edge and tips, while the pelvic fins are whitish to hyaline. The barred pattern is more pronounced in juveniles.
Etymology
Ferdauia: Arabic vernacular for Carangoides ferdau (Forsskål, 1775).
ferdau: Arabic vernacular name for this species.
Original description: Scomber ferdau Fabricius (ex Forsskål), 1775 - Type locality: Jeddah, Saudi Arabia, Red Sea.
Distribution
Red Sea; Indo-West Pacific: South Africa, East Africa, Socotra (Yemen), Persian Gulf, Seychelles, Madagascar and Mascarenes (La Réunion, Mauritius, Rodrigues) east to Hawaiian Islands (U.S.A.), Line Islands (Kiribati) and Pitcairn Group, north to Kyoto Prefecture (central Japan), south to Western Australia, New Caledonia, Norfolk Island (Australia) and Rapa (French Polynesia).
Biology
Adults are found in coastal waters adjacent to sandy beaches, also often near reefs. Pelagic. Singly or in small groups. They feed mainly on mollusks, benthic crustaceans, and occasionally on small fish that are abundant in the lagoons. Excellent food fish, the flesh is rarely poisonous (ciguatera poisoning). A popular game and an excellent food fish. Also taken in commercial fisheries in many parts of its range. The juveniles sometimes shelter among the tentacles of large pelagic jellyfish.
Similar species
Ferdauia orthogrammus (Jordan & Gilbert, 1882) - Reported from New Caledonia - Link to the species (here). Ferdauia orthogrammus is similar to Ferdauia ferdau, but adults differ in having several relatively large oblong yellow spots, including some below lateral line; No dark banks on sides; Lower gill rakes on the 1st arch (including rudiments) more than 20.
Last update: 7, March 2023
Actinopterygii (Gigaclass) > Actinopteri (Class) > Teleostei (Subclass) > Carangiformes (Order) > Carangoidei (Suborder) > Carangidae (Family) > Caranginae (Subfamily) > Ferdauia (Genus)
Carangue à barres, Carangue tachetée, Carangue la nation, Blue trevally, Banded trevally, Barred trevally, Bar juack, Striped jack, Querstreifen-makrele, Blou koningvis, Jurel manchado, Nanyô-kaiwari, Kurohira-aji, クロヒラアジ, 흑전갱이, 半裸胸鰺, 印度平鰺, Cá Khế chấm vàng,
Synonymes
Carangoides ferdan (Fabricius, 1775)
Carangoides gilberti (Jordan & Seale, 1906)
Carangoides hemigymnostethus (Bleeker, 1851)
Carangoides laticaudis (Alleyne & MacLeay, 1877)
Caranx ferdau (Fabricius, 1775)
Caranx gilberti (Jordan & Seale, 1906)
Caranx hemigymnostethus (Bleeker, 1851)
Caranx laticaudis (Alleyne & MacLeay, 1877)
Ferdauia lindemanensis (Whitley, 1951)
Scomber ferdau (Fabricius, 1775)
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Description
Dorsal spines (total): 9; Dorsal soft rays (total): 26-34; Anal spines: 3; Anal soft rays: 21-26; Pectoral fin rays: 18-21; Gill rakers: 7-9 + 17-20 = 24-29; Vertebrae: 10 + 14 = 24; Lateral line scales: 82-90 (curved part) + 12-17 (straight part) + 26-31 (scutes). Snout bluntly rounded; Upper jaw highly protractile; Both jaws with narrow bands of villiform teeth. Curved section of lateral line only slightly arched, longer than straight section, junction of curved and straight sections below 15-20th soft dorsal-fin rays. Naked area on breast extending less than one third of distance to naked pectoral-fin base. Lips never papillose; Snout: 6.9-8.1 %; Eye: 6.2-8.1 %; Upper jaw length to snout ratio: 1.2-1.4; Snout to eye ratio: 0.95-1.22; Curved lateral line segment only slightly arched, longer than straigh. Max. length: 70.0 cm TL, common length: 30.0 cm TL. Max. published weight: 8.0 kg. Depth range: 1 - 60 m.
Carangoides ferdan (Fabricius, 1775)
Carangoides gilberti (Jordan & Seale, 1906)
Carangoides hemigymnostethus (Bleeker, 1851)
Carangoides laticaudis (Alleyne & MacLeay, 1877)
Caranx ferdau (Fabricius, 1775)
Caranx gilberti (Jordan & Seale, 1906)
Caranx hemigymnostethus (Bleeker, 1851)
Caranx laticaudis (Alleyne & MacLeay, 1877)
Ferdauia lindemanensis (Whitley, 1951)
Scomber ferdau (Fabricius, 1775)
--------------------------
Description
Dorsal spines (total): 9; Dorsal soft rays (total): 26-34; Anal spines: 3; Anal soft rays: 21-26; Pectoral fin rays: 18-21; Gill rakers: 7-9 + 17-20 = 24-29; Vertebrae: 10 + 14 = 24; Lateral line scales: 82-90 (curved part) + 12-17 (straight part) + 26-31 (scutes). Snout bluntly rounded; Upper jaw highly protractile; Both jaws with narrow bands of villiform teeth. Curved section of lateral line only slightly arched, longer than straight section, junction of curved and straight sections below 15-20th soft dorsal-fin rays. Naked area on breast extending less than one third of distance to naked pectoral-fin base. Lips never papillose; Snout: 6.9-8.1 %; Eye: 6.2-8.1 %; Upper jaw length to snout ratio: 1.2-1.4; Snout to eye ratio: 0.95-1.22; Curved lateral line segment only slightly arched, longer than straigh. Max. length: 70.0 cm TL, common length: 30.0 cm TL. Max. published weight: 8.0 kg. Depth range: 1 - 60 m.
Color
The body is a blue-green to yellow-green above, becoming silvery below, with adults having five or six dusky vertical bands which usually persist after death. Numerous, inconspicuous golden spots often are present on the sides, mostly above the level of the pectoral fins. The soft dorsal and anal fins are pale yellowish-green, and the anterior lobes of both often have white to blue tips. The caudal fin is yellow green, having a dark trailing edge and tips, while the pelvic fins are whitish to hyaline. The barred pattern is more pronounced in juveniles.
Etymology
Ferdauia: Arabic vernacular for Carangoides ferdau (Forsskål, 1775).
ferdau: Arabic vernacular name for this species.
Original description: Scomber ferdau Fabricius (ex Forsskål), 1775 - Type locality: Jeddah, Saudi Arabia, Red Sea.
Distribution
Red Sea; Indo-West Pacific: South Africa, East Africa, Socotra (Yemen), Persian Gulf, Seychelles, Madagascar and Mascarenes (La Réunion, Mauritius, Rodrigues) east to Hawaiian Islands (U.S.A.), Line Islands (Kiribati) and Pitcairn Group, north to Kyoto Prefecture (central Japan), south to Western Australia, New Caledonia, Norfolk Island (Australia) and Rapa (French Polynesia).
Biology
Adults are found in coastal waters adjacent to sandy beaches, also often near reefs. Pelagic. Singly or in small groups. They feed mainly on mollusks, benthic crustaceans, and occasionally on small fish that are abundant in the lagoons. Excellent food fish, the flesh is rarely poisonous (ciguatera poisoning). A popular game and an excellent food fish. Also taken in commercial fisheries in many parts of its range. The juveniles sometimes shelter among the tentacles of large pelagic jellyfish.
Similar species
Ferdauia orthogrammus (Jordan & Gilbert, 1882) - Reported from New Caledonia - Link to the species (here). Ferdauia orthogrammus is similar to Ferdauia ferdau, but adults differ in having several relatively large oblong yellow spots, including some below lateral line; No dark banks on sides; Lower gill rakes on the 1st arch (including rudiments) more than 20.
Last update: 7, March 2023