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Euthynnus affinis (Cantor, 1849)

Kawakawa
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Euthynnus affinis   AquaMaps   Data sources: GBIF OBIS
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Image of Euthynnus affinis (Kawakawa)
Euthynnus affinis
Picture by Field, R.


Reunion Island [La] (La Réunion) country information

Common names: Bonite d'Inde, Bonite la côte
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/re.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Letourneur, Y., P. Chabanet, P. Durville, M. Taquet, E. Teissier, M. Parmentier, J.-C. Quéro and K. Pothin, 2004
National Database:

Common names from other countries

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | 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 Ökologie

seewasser; ozeanodrom (Ref. 51243); tiefenbereich 0 - 200 m (Ref. 54439).   Tropical; 18°C - 29°C (Ref. 168); 35°N - 38°S, 19°E - 137°W (Ref. 54439)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | 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 / Gewicht / Alter

Maturity: Lm 42.3, range 40 - 65 cm
Max length : 100.0 cm FL Männchen/unbestimmt; (Ref. 168); common length : 60.0 cm FL Männchen/unbestimmt; (Ref. 168); max. veröff. Gewicht: 14.0 kg (Ref. 30874); max. veröff. Alter: 6 Jahre (Ref. 121508)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 10 - 15; Rückenflossenweichstrahlen (insgesamt) : 11 - 15; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 11 - 15; Wirbelzahl: 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).

Biologie     Fachlexikon (Englisch) (z.B. 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 Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Collette, Bruce B. | Partner

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 Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 01 March 2022

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Reports of ciguatera poisoning (Ref. 30911)




Nutzung durch Menschen

Fischereien: hoch kommerziell; Sportfisch: ja
FAO(Fischereien: production, Artbeschreibung; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

Mehr Information

Trophic ecology
Nahrungsorganismen
Diet compositions
Food consumptions
Food rations
Räuber
Ecology
Ökologie
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversions
Recruitments
Abundances
Life cycle
Fortpflanzung
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larven
Larven Pop.Dyn.
Anatomy
Gill areas
Gehirngröße
Otoliths
Genetics
Genetik
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquakultur Profile
Zuchtlinien
Ciguatera cases
Stamps, coins, misc.
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References
Referenzen

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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).
Trophic level (Ref. 69278):  4.5   ±0.0 se; based on diet studies.
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (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).
Preiskategorie (Ref. 80766):   Medium.