Classificazione / Nomi
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); sylvaticus: Name 'sylvaticus from the Latin participial adjective formed from ‘sylva’ (forest), and
‘-aticus’ (pertaining to), in reference to the distinctive habitat preference of the species, restricted to
ephemeral pools and seeps associated with seasonal forest-streams.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
Africa: Kenya.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 3.4 cm SL maschio/sesso non determinato; (Ref. 138025)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 14 - 15; Raggi anali molli: 13 - 15. This species is distinguished from its congeners by the following set of characters: scales on trunk iridescent light blue covering the entire caudal peduncle; dorsal portion of head grey with distinct red lobes along supraorbital canal; posterior scale margins on postorbital portion
of opercle creating two pronounced brown-red oblique bars; dorsal and anal fins golden, marked with dark grey dots and stripes proximally and medially, merging into uniform dark grey zone distally; dark red to red colouration of the proximal side of the caudal fin, plain red medially, and with slender black distal band; and colouration of the brown-red scale margins, a series of morphometric and meristic differences, and in the structure of the cephalic sensory system (Ref. 138025)
Body shape (shape guide): elongated; Cross section: compressed.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Bellstedt, D.U., B. Nagy, P.D.W. Van der Merwe, F.P.D. Cotterill, Q. Luke and B.R. Watters, 2025. The description of a critically endangered new species of seasonal killifish, Nothobranchius sylvaticus (Cyprinodontiformes: Nothobranchiidae), a relict species from an East African forest refugium in south-eastern Kenya. Zootaxa 5601(1):086-108. (Ref. 138025)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00250 - 0.01453), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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