Classificazione / Nomi
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Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); scorteus: Specific name from the Latin scorteus (leathern), in reference to the leathery skin of Akysis.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale. Tropical
Asia: known only from Way Seputih in Sumatra, Indonesia.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 3.2 cm SL maschio/sesso non determinato; (Ref. 75761)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 1; Raggi dorsali molli (totale) : 5; Raggi anali molli: 9 - 10; Vertebre: 31 - 32. Diagnosed by the following characters: space between anterior nostril and base of nasal barbel about equal to nostril diameter; anterior and posterior nostrils relatively small (diameter less than that of eye); anterior nostril located at end of short tube; jaws subequal (lip of upper jaw projecting past lower jaw); caudal fin emarginate (not strongly forked); eye dorsolateral, not protruding above head when viewed from side; large depression below eye; posterior edge of pectoral spine with three small serrae (much less than half width of spine); and top
of head flat, lacking conspicuous concavity and bony ridges (Ref. 75761).
Body shape (shape guide): elongated.
Inhabits small patch of vegetation in a sandy run in a sand- and gravel-bottomed, clear river with an average width of about 30 m (Ref. 75761).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Page, L.M., R.K. Hadiaty, J.A. López, I. Rachmatika and R.H. Robins, 2007. Two new species of the Akysis variegatus species group (Siluriformes: Akysidae) from Southern Sumatra and a redescription of Akysis variegatus Bleeker, 1846. Copeia 2007(2):292-303. (Ref. 75761)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |