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Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Nannocharax: Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335); maculicauda: Named for its caudal spot.
More on authors: Vari & Géry.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού Πελαγικό(ά). Tropical
Africa: Lower Guinea endemic, known from the Ntem, Mbini [=Woleu] and the Ogowe River basins (Ref. 81638).
Μέγεθος / Βάρος / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 7094)
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 11 - 14; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 12 - 13. Diagnosis: distinct, large round spot on posterior portion of caudal peduncle and mid-basal caudal fin rays (Ref. 81638).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Daget, J. and J.-P. Gosse, 1984. Distichodontidae. p. 184-211. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 7094)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
αλιεία: με δυνητικό ενδιαφέρον
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00189 - 0.01058), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).