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Scombriformes (Mackerels) >
Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Allothunnus: Greek, allos = other + Greek, thynnos = tunna (Ref. 45335).
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser pelagic-oceanic; ozeanodrom (Ref. 51243); tiefenbereich 0 - 20 m (Ref. 86942). Subtropical; 10°S - 50°S, 180°W - 180°E (Ref. 168)
Southern Ocean: circumglobal. One individual taken in Los Angeles Harbor.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 105 cm FL Männchen/unbestimmt; (Ref. 5313); common length : 86.0 cm TL Männchen/unbestimmt; (Ref. 9684); max. veröff. Gewicht: 13.7 kg (Ref. 5313)
Rückenflossenstacheln (insgesamt) : 15 - 18; Rückenflossenweichstrahlen (insgesamt) : 12 - 13; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 13 - 14; Wirbelzahl: 40. Interpelvic process small and bifid. Body naked ventrally behind the long anterior corselet. Dorsal half of body to lateral line covered with scales. Swim bladder absent. The back is bluish, turning to deep purple or almost black on the head; the belly is white, without stripes or spots; the pectoral and pelvic fins purple, their inner sides black.
Body shape (shape guide): fusiform / normal; Cross section: oval.
An occasionally schooling species which feeds mainly on krill (euphausiids), and also on squids and small fishes. Juveniles are found between 20 and 35°S at surface temperatures ranging from 19 to 24°C. Its flesh is paler than that of most true tunas and is very oily, but the cooked meat has fine eating qualities. Mainly marketed fresh.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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 Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell; Sportfisch: ja
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Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 15.8 - 24.6, mean 18.4 °C (based on 182 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00458 - 0.01993), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.7 ±0.1 se; based on diet studies.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): High to very high vulnerability (70 of 100).
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Nährstoffe (Ref.
124155): Calcium = 47.8 [25.9, 89.1] mg/100g; Iron = 1.57 [0.92, 2.77] mg/100g; Protein = 21.7 [20.5, 22.9] %; Omega3 = 0.3 [0.2, 0.5] g/100g; Selenium = 19.6 [10.4, 39.2] μg/100g; VitaminA = 13.3 [4.8, 40.7] μg/100g; Zinc = 0.618 [0.430, 0.904] mg/100g (wet weight);