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Allothunnus fallai  Serventy, 1948

Slender tuna
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Allothunnus fallai
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Allothunnus: Greek, allos = other + Greek, thynnos = tunna (Ref. 45335).

Environment / Climate / Range Ecology

Marine; pelagic-oceanic; oceanodromous (Ref. 51243).   Subtropical; 10°S - 50°S, 180°W - 180°E (Ref. 168)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 105 cm FL male/unsexed; (Ref. 5313); common length : 86.0 cm TL male/unsexed; (Ref. 9684); max. published weight: 13.7 kg (Ref. 5313)

Short description Morphology | Morphometrics

Dorsal spines (total): 15 - 18; Dorsal soft rays (total): 12-13; Anal spines: 0; Anal soft rays: 13 - 14; Vertebrae: 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.

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

Southern Ocean: circumglobal. One individual taken in Los Angeles Harbor.

Biology     Glossary (e.g. epibenthic)

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.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | 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. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(fisheries: production; publication : search) | FIRMS (Stock assessments) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278):  3.7   ±0.1 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High vulnerability (57 of 100) .
Price category (Ref. 80766):   Very high.