Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري; نطاق العمق ? - 50 m (Ref. 91762). Subtropical
Western Indian Ocean: from northern Red Sea, to the Mediterranean (immigrant).
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 20.8 cm SL ذكر/ مختلط الجنس; (Ref. 91762)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشعة الظهرية الناعمة (المجموع) : 19 - 22; أشعه شرجية لينه: 10 - 11; فقرات: 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 | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
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)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
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).
مستوى غذائي (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.
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
