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> 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 पारिस्थितिकी

समुद्री; औशिनोड़िरोमस (Ref. 51243); गहराई सीमा 0 - 200 m (Ref. 54439). Tropical; 18°C - 29°C (Ref. 168); 35°N - 38°S, 19°E - 137°W (Ref. 54439)

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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 / आकार / वज़न / Age

Maturity: L_m 42.3, range 40 - 65 cm
Max length : 100.0 cm FL पुल्लिंग / अलिंग; (Ref. 168); common length : 60.0 cm FL पुल्लिंग / अलिंग; (Ref. 168); अधिकतम प्रकाशित वज़न: 14.0 kg (Ref. 30874); अधिकतम सूचित उम्र: 6 वर्षो (Ref. 121508)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 10 - 15; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 11 - 15; गुदा कांटा: 0; ऐनल सौफट रेज़: 11 - 15; जानवरों की रीड़ का जोड़: 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 | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Main reference Upload your references | संदर्भ | संयोजक : Collette, Bruce B. | सहयोगीयो

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

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Reports of ciguatera poisoning (Ref. 30911)

Human uses

मात्स्यिकी: उच्च वाणिज्य; आखेट मत्स्य: हां

FAO - मात्स्यिकी: landings, species profile; Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 123201): 20.7 - 28.5, mean 26.9 °C (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).

Trophic level (Ref. 69278): 4.5 ±0.0 se; based on diet studies.

Generation time: 1.6 (1.2 - 2.5) years. Estimated as median ln(3)/K based on 11 growth studies.

लौटाव (Ref. 120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (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.

Nutrients (Ref. 124155): Calcium = 20.9 [9.6, 171.3] mg/100g; Iron = 2.28 [0.88, 5.97] mg/100g; Protein = 23.1 [21.1, 24.7] %; Omega3 = 0.235 [0.129, 0.428] g/100g; Selenium = 70.6 [35.4, 143.5] μg/100g; VitaminA = 20.2 [5.4, 77.8] μg/100g; Zinc = 0.408 [0.211, 1.643] mg/100g (wet weight); based on nutrient studies.

Euthynnus affinis (Cantor, 1849)