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Euthynnus alletteratus  (Rafinesque, 1810)

Little tunny
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Native range | All suitable habitat | Point map | Year 2100
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Euthynnus alletteratus   AquaMaps   Data sources: GBIF OBIS
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Image of Euthynnus alletteratus (Little tunny)
Euthynnus alletteratus
Picture by JAMARC


Senegal country information

Common names: Deleu deleu, Kiri kiri, Oualass
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: minor commercial | Ref: FAO, 1992
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/sg.html
National Fisheries Authority: https://www.refer.sn/sngal_ct/eco/oeps/
Occurrences: Occurrences Point map
Main Ref: Collette, B.B. and C.E. Nauen, 1983
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Main reference

Size / Weight / Age

Max length : 122 cm TL male/unsexed; (Ref. 26340); common length : 80.0 cm TL male/unsexed; (Ref. 5217); max. published weight: 16.5 kg (Ref. 40637); max. reported age: 10 years (Ref. 28173)

Length at first maturity
Lm 41.8  range ? - 60 cm

Environment

Marine; brackish; reef-associated; oceanodromous (Ref. 51243); depth range 1 - 150 m (Ref. 28173)

Climate / Range

Tropical, preferred 24°C (Ref. 107945); 56°N - 30°S, 92°W - 42°E

Distribution

Atlantic Ocean: in tropical and subtropical waters, including the Mediterranean, Black Sea, Caribbean Sea and Gulf of Mexico. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 15 - 16; Dorsal soft rays (total): 11-13; Anal spines: 0; Anal soft rays: 11 - 15; Vertebrae: 39. Anterior spines of first dorsal fin much higher than the those mid-way, giving the fin a strongly concave outline. Interpelvic process small and bifid. Body naked except for corselet and lateral line. Swim bladder absent. Incipient protuberances on 33rd and 34th vertebrae. Back with broken oblique stripes (Ref. 168). Caudal peduncle with 7-8 finlets. Dark stripes on the back and with 3-7 dark spots between pelvic and pectoral fins (Ref. 35388).

Biology     Glossary (e.g. epibenthic)

Found in neritic waters close inshore (Ref. 13628). This schooling species is an opportunistic predator which feeds on virtually everything within its range, i.e. crustaceans, fishes (mainly clupeoid), squids, heteropods and tunicates. Eggs and larvae are pelagic (Ref. 6769). Specialized traps (madragues) are used in Tunisia and Morocco. Diving bird flocks may indicate large schools (Ref. 9710). Utilized fresh, dried-salted, smoked, canned and frozen (Ref. 9987). A popular game fish (Ref. 9710).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Reports of ciguatera poisoning (Ref. 30303)



Human uses

Fisheries: commercial; gamefish: yes

More information

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

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=0.13-0.22; tm=2; tmax=8; Fec=71,000)

Vulnerability (Ref. 59153)
High vulnerability (57 of 100)
Price category (Ref. 80766)
Medium