Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة; مياه مخلوطة القاع; مهاجرة بين الياه الملحه و الحلوة لكن ليس للتزاوج (Ref. 46888). Tropical; 16°N - 18°S, 18°W - 14°E
Africa: Senegal (Ref. 57413, 81660) to Democratic Republic of the Congo (Ref. 57413) and Angola (Ref. 81660). In Lower Guinea found in lower courses of most rivers, though not apparently collected from between the Ogowe and the Kouilou (Ref. 81660). Also reported from Namibia (Ref. 92840).
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 22.4 cm TL ذكر/ مختلط الجنس; (Ref. 57413)
الأشواك الظهرية (المجموع) : 6 - 7; الأشعة الظهرية الناعمة (المجموع) : 8 - 9; شوكة شرجية: 1; أشعه شرجية لينه: 7 - 9. Diagnosis: 33-43 (usually 36-40) scales in longitudinal series on flanks, and 2-5 scales on caudal fin base; 12-17 (usually 13 or 14) in rearward transverse series; body pigmentation usually dark with a broad, dark band on flanks, from pectoral-fin base towards caudal-fin base (Ref. 57413). No prominent dark spot on dorsal part of pectoral fin base (Ref. 57413), if dark pigment present, not distinct from pigment on nape (Ref. 81660). Sensory papillae on upper rear field of opercle form a forked row (Ref. 81660).
Occurs in freshwaters and brackish environments along the coast (Ref. 6802). Maximum reported standard length 165 mm (Ref. 81660).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Harrison, I.J., P.J. Miller and F. Pezold, 2003. Eleotridae. p. 670-690 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57413)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 24.4 - 27.9, mean 26.9 °C (based on 54 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00367 - 0.01569), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.7 ±0.3 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
