Classificatie / Names
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Siluriformes (Catfishes) >
Amphiliidae (Loach catfishes) > Amphiliinae
Etymology: Amphilius: Greek, amphi = on both sides + Greek, leios = fat; athiensis: The specific name athiensis refers to the Athi River system, where the species appears to be endemic; used as a noun in apposition (Ref. 85045).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
Africa: known only from the Athi River system, Galana River basin in Kenya (Ref. 85045).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 16.0 cm SL mannelijk / geslacht onbekend; (Ref. 85045)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 7; Anale stekels: 0; Anale zachte stralen: 8 - 10; Wervels: 38 - 40. Diagnosis: Amphilius athiensis is distinguished from all other species of the A. uranoscopus group by its distinctive colouration consisting of many small dark spots on its head, body, and fins, vs. head, body, and fins not finely spotted; it also differs from A. grandis by having longer inner mandibular barbels, 33.3-42.0% of head length vs. 20.2-33.6%, from A. chalei, A. cryptobullatus, A. krefftii, and A. uranoscopus by the absence of distinct pale patches at the origin and insertion of the dorsal fin, and from A. cryptobullatus and A. krefftii by its forked caudal fin vs. emarginate; it also differs from A. krefftii by its more elongate body with 38-40 total vertebrae, vs. short body with usually 36 total vertebrae; it also differs from A. chalei by having a deeper body, body depth at anus 11.1-15.3% of standard length vs. 8.9-10.8%, a deeper caudal peduncle, caudal peduncle depth 10.1-12.6% of standard length vs. 7.1-9.7%, and shorter caudal peduncle, caudal peduncle length 14.6-18.3% of standard length vs. 19.0-21.9%; it also differs from A. cryptobullatus by having normally developed bilateral bony swimbladder capsules, vs. bilateral bony swimbladder capsules extremely large (Ref. 85045).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Thomson, A.W. and L.M. Page, 2010. Taxonomic revision of the Amphilius uranoscopus group (Teleostei: Siluriformes) in Kenya, with the description of a new species from the Athi River. Bull. Flor. Mus. Nat. Hist. 49(2):45-66. (Ref. 85045)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00173 - 0.01152), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
