Environment: milieu / climate zone / depth range / distribution range
Écologie
marin; profondeur ? - 50 m (Ref. 91762). Subtropical
Western Indian Ocean: from northern Red Sea, to the Mediterranean (immigrant).
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 20.8 cm SL mâle / non sexé; (Ref. 91762)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 19 - 22; Rayons mous anaux: 10 - 11; Vertèbres: 52 - 53. This species is distinguished by the following: D 19-22; A 10-11; gill-rakers 13-15 + 33-36 (total 47-51); vertebrae 52-53; origin of pelvic fins about one-third eye diameter posterior to a vertical at rear end of dorsal fin base; colour when preserved in alcohol has the centre of scales on dorsal half of body blackish, the edges pale grey (pale edges progressively narrower posteriorly), ventral half of body abruptly silvery white; colour when fresh is iridescent blue-green dorsally on body, dark pigmentation as in alcohol preserved specimens, shading through bronze to silvery white on abdomen (Ref. 91762).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
DiBattista, J.D., J.E. Randall and B.W. Bowen, 2012. Review of the round herrings of the genus Etrumeus (Clupeidae: Dussumieriinae) of Africa, with descriptions of two new species. Cybium 36(3):447-460. (Ref. 91762)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5098 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00246 - 0.01172), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Generation time: 3.9 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).