New Zealand country information

Common names: Slender tuna
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found mainly off the east coast of the South Island (Ref. 9258). Small foreign longline catch (Ref. 9258). Voucher specimen(s) held at the NMNZ. Also Ref. 168, 45493.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: http://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Paulin, C., A. Stewart, C. Roberts and P. McMillan, 1989
National Database:

Common names from other countries

Thon élégant, Atún lanzón, Тунец южный, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Allothunnus: Greek, allos = other + Greek, thynnos = tunna (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 20 m (Ref. 86942). Subtropical; 10°S - 50°S, 180°W - 180°E (Ref. 168)

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

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

Size / Weight / Age

Maturity: L_m ? 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 Identification keys | 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.

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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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. 130435)

Least Concern (LC) ; Date assessed: 01 March 2022

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: minor commercial

FAO(Fisheries: production; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

More information

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

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 15.8 - 24.6, mean 18.4 (based on 182 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00464 - 0.01966), b=3.05 (2.88 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.7 ±0.1 se; based on diet studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (70 of 100).

Price category (Ref. 80766): Very high.

Allothunnus fallai Serventy, 1948