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: Euthynnus: Greek, eu = good + Greek, thynnos = tunna (Ref. 45335).

Environment / Climate / Range Ecology

Marine; pelagic-neritic; oceanodromous (Ref. 51243); depth range 0 - 200 m (Ref. 54439). Tropical; 18°C - 29°C (Ref. 168), preferred 28°C (Ref. 107945); 35°N - 38°S, 32°E - 137°W (Ref. 54439)

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

Indo-West Pacific: in warm waters including oceanic islands and archipelagos. A few stray specimens have been collected in the Eastern Central Pacific. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 40 - 65 cm
Max length : 100.0 cm FL male/unsexed; (Ref. 168); common length : 60.0 cm FL male/unsexed; (Ref. 168); max. published weight: 14.0 kg (Ref. 30874)

Short description Morphology | Morphometrics

Dorsal spines (total): 10 - 15; Dorsal soft rays (total): 11-15; Anal spines: 0; Anal soft rays: 11 - 15; Vertebrae: 39. Swim bladder absent. No trace of vertebral protuberances. Anterior spines of first dorsal fin much higher than those mid-way. Interpelvic process small and bifid. Body naked except for corselet and lateral line. Posterior portion of the back with a pattern of broken oblique stripes.

Occurs in open waters but always remains close to the shoreline. The young may enter bays and harbors. Forms multi-species schools by size with other scombrid species comprising from 100 to over 5,000 individuals. A highly opportunistic predator feeding indiscriminately on small fishes, especially on clupeoids and atherinids; also on squids, crustaceans and zooplankton (Ref. 9684). Generally marketed canned and frozen; also utilized dried, salted, smoked (Ref. 9684) and fresh (Ref. 9987).

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. 115185)

Least Concern (LC)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Reports of ciguatera poisoning (Ref. 30911)

Human uses

Fisheries: highly commercial; gamefish: yes

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00912 (0.00489 - 0.01700), b=3.12 (2.97 - 3.27), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic Level (Ref. 69278): 4.5 ±0.0 se; Based on diet studies.

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.4-0.5; tm=3; Fec=210,000).

Prior r = 0.58, 2 SD range = 0.35 - 0.97, log(r) = -0.54, SD log(r) = 0.25, Based on: 1 K, 1 tgen, 2 Fec records

Vulnerability (Ref. 59153): Moderate vulnerability (37 of 100) .

Price category (Ref. 80766): Medium.

Euthynnus affinis (Cantor, 1849)