Euthynnus affinis, Kawakawa : fisheries, gamefish

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Euthynnus affinis (Cantor, 1849)

Kawakawa
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Native range | All suitable habitat | Point map | Year 2050
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Euthynnus affinis   AquaMaps   Data sources: GBIF OBIS
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Image of Euthynnus affinis (Kawakawa)
Euthynnus affinis
Picture by Field, R.

Jordan country information

Common names: Fatla
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: In range Ref. 168.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/jo.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Khalaf, M.A., 2004
National Database:

Common names from other countries

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

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | 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 / distribuzione batimetrica / distribution range Ecologia

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

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Mappa dei ritrovamenti | Introduzioni | 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 / Size / Peso / Age

Maturità: Lm 42.3, range 40 - 65 cm
Max length : 100.0 cm FL maschio/sesso non determinato; (Ref. 168); common length : 60.0 cm FL maschio/sesso non determinato; (Ref. 168); peso massimo pubblicato: 14.0 kg (Ref. 30874); Età massima riportata: 6 anni (Ref. 121508)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 10 - 15; Raggi dorsali molli (totale) : 11 - 15; Spine anali: 0; Raggi anali molli: 11 - 15; Vertebre: 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).


Body shape (shape guide): fusiform / normal; Cross section: oval.

Biologia     Glossario (es. epibenthic)

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 Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore : Collette, Bruce B. | Collaboratori

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: Version 2025-1)

  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

Pesca: elevato interesse commerciale; Pesce da pesca sportiva: si
FAO - pesca: landings, species profile; Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

Informazioni ulteriori

Trophic ecology
Food items (preys)
Alimentazione
Consumo di cibo
Food rations
Predatori
Ecologia
Ecologia
Home ranges
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamento
Abbondanza
Life cycle
Riproduzione
Maturità
Maturity/Gills rel.
Fecundity
Deposizione
Spawning aggregations
Uova
Egg development
Larve
Dinamica popolazioni larvali
Distribuzione
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
BRUVS - Videos
Anatomy
Area branchiale
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetica
Genome
Genetica
Heterozygosity
Ereditarietà
Human related
Aquaculture systems
Profili di acquacoltura
Varietà
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaboratori
Taxonomy
Nomi Comuni
Sinonimi
Morfologia
Morfometria
Immagini
Bibliografia
Bibliografia

Strumenti

Bio-Quiz | E-book | Giuda pratica | Chiavi di identificazione | Generatore frequenze di lunghezza | Strumento Parametri Biologici | Mappa dei ritrovamenti | Catch-MSY |

Special reports

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

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Genere, Specie | DiscoverLife | ECOTOX | FAO - pesca: landings, species profile; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Database Nazionali | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | RFE Identification | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, ricerca | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Fonte Biblio. 123201): 20.7 - 28.5, mean 26.9 °C (based on 1384 cells).
Phylogenetic diversity index (Fonte Biblio. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00867 - 0.01154), b=3.05 (3.01 - 3.09), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Fonte Biblio. 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.
Resilienza (Fonte Biblio. 120179):  Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (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.