Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού; Υφάλμυρο βενθικό(ς); αμφίδρομο (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).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 22.4 cm TL αρσενικό/απροσδιόριστο; (Ref. 57413)
Ραχιαίες άκανθες (συνολικά) : 6 - 7; Μαλακές ραχιαίες ακτίνες (συνολικά) : 8 - 9; Εδρικές άκανθες: 1; Μαλακές εδρικές ακτίνες: 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
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
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: Version 2024-2)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
Εργαλεία
Special reports
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Διαδικτυακές πηγές
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=0.00776 (0.00407 - 0.01480), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.7 ±0.3 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
