Egypt country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/eg.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Collette, B.B. and C.E. Nauen, 1983
National Database:

Common names from other countries

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

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | 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 Ecologia

marinhas; oceanódromo (Ref. 51243); intervalo de profundidade 0 - 200 m (Ref. 54439). Tropical; 18°C - 29°C (Ref. 168); 35°N - 38°S, 19°E - 137°W (Ref. 54439)

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | 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 / Tamanho / Peso / Idade

Maturity: L_m 42.3, range 40 - 65 cm
Max length : 100.0 cm FL macho/indeterminado; (Ref. 168); common length : 60.0 cm FL macho/indeterminado; (Ref. 168); peso máx. Publicado: 14.0 kg (Ref. 30874); Idade máx. registada: 6 anos (Ref. 121508)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 10 - 15; Raios dorsais moles (total) : 11 - 15; Espinhos anais: 0; Raios anais moles: 11 - 15; Vértebras: 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 | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador : 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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Preocupação menor (LC) ; Date assessed: 01 March 2022

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Reports of ciguatera poisoning (Ref. 30911)

Utilização humana

Pescarias: altamente comercial; peixe desportivo: sim

FAO(pescarias: produção, perfil da espécie; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

Mais informação

Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
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Predadores

Ecology
Ecologia
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Population dynamics
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Length-weight rel.
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Life cycle
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Physiology
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Tipo de natação
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Toxicities (LC50s)

Genetics
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Stamps, coins, misc.

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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).

Nível Trófico (Ref. 69278): 4.5 ±0.0 se; based on diet studies.

Resiliência (Ref. 120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (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).

Categoria de preço (Ref. 80766): Medium.

Euthynnus affinis (Cantor, 1849)