Maldives country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: highly commercial | Ref: Randall, J.E. and C. Anderson, 1993
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Museum: MRS 75/86 (13 cm SL). A species of major importance to the country.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mv.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Randall, J.E. and C. Anderson, 1993
National Database:

Common names from other countries

Thonine orientale, Bacoreta oriental, Dwarf bonito, ... more

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Euthynnus: Greek, eu = good + Greek, thynnos = tunna (Ref. 45335).

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

marino; oceanodromo (Ref. 51243); rango de profundidad 0 - 200 m (Ref. 54439). Tropical; 18°C - 29°C (Ref. 168); 35°N - 38°S, 19°E - 137°W (Ref. 54439)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | 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.

Length at first maturity / Tamaño / Peso / Age

Maturity: L_m 42.3, range 40 - 65 cm
Max length : 100.0 cm FL macho / no sexado; (Ref. 168); common length : 60.0 cm FL macho / no sexado; (Ref. 168); peso máximo publicado: 14.0 kg (Ref. 30874); edad máxima reportada: 6 años (Ref. 121508)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 10 - 15; Radios blandos dorsales (total) : 11 - 15; Espinas anales: 0; Radios blandos anales: 11 - 15; Vértebra: 39. This species is distinguished by the following characters: medium-sized fish with a robust, elongate and fusiform body; teeth small and conical, in a single series; total gill rakers on first gill arch 29-34; D1 XI-XIV with both dorsal fins separated by only a narrow interspace (not wider than eye), anterior spines of first fin much higher than those midway, giving fin a strongly concave outline; D2 much lower than first and followed by 8-10 finlets; anal fin followed by 6-8 finlets; pectoral fins short, never reaching interspace between dorsal fins; 2 flaps (interpelvic process) between pelvic fins; very slender caudal peduncle with a prominent lateral keel between 2 small keels at base of caudal fin; body naked except for corselet and lateral line. Colour of back dark blue with a complicated striped pattern which does not extend forward beyond middle of first dorsal fin; lower sides and belly silvery white; several characteristic dark spots between pelvic and pectoral fins (but may not always be present) (Ref. 9684, 90102).

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. Caught in multispecies fisheries, mainly by surface trolling; also with gill nets. Generally marketed canned and frozen; also utilized dried, salted, smoked and fresh (Ref. 9684).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Main reference Upload your references | Referencias | Coordinador : Collette, Bruce B. | Colaboradores

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

Reports of ciguatera poisoning (Ref. 30911)

Human uses

Pesquerías: muy comercial; pesca deportiva: si

FAO(pesquerías: producción, species profile; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

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Trophic ecology
componentes alimenticios
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Ecology
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Population dynamics
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Length-weight rel.
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Life cycle
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

Estimates based on models

Preferred temperature (Ref. 115969): 20.7 - 28.5, mean 26.9 (based on 1384 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00862 - 0.01160), b=3.05 (3.01 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Nivel trófico (Ref. 69278): 4.5 ±0.0 se; based on diet studies.

Resiliencia (Ref. 120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.4-0.5; tm=3; Fec=210,000).

Prior r = 0.88, 95% CL = 0.58 - 1.32, Based on 5 full stock assessments.

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (36 of 100).

Climate Vulnerability (Ref. 125649): High to very high vulnerability (75 of 100).

Price category (Ref. 80766): Medium.

Euthynnus affinis (Cantor, 1849)