Kneria ruaha

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Kneria ruaha Seegers, 1995

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drawing shows typical species in Kneriidae.

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Gonorynchiformes (Milkfishes) > Kneriidae (Shellears)
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335)ruaha: Named for the Ruaha River drainage, Tanzania, where it occurs; noun in apposition (Ref. 26644).
Eponymy: Dr Rudolf Kner (1810–1869) was an Austrian zoologist specialising in ichthyology. [...] This is a toponym referring to the Ruaha River drainage in Tanzania, the type locality. (Ref. 128868), visit book page.

Environment: milieu / Klimaatzone / Diepte / distribution range Ecologie

; zoet water demersaal. Tropical

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Africa: upper reaches of Ndembera and Idodi Rivers and middle and lower reaches of Little Ruaha River(Ruaha River basin) in Tanzania (Ref. 26644).

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 57.5 cm SL mannelijk / geslacht onbekend; (Ref. 26644)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 8 - 11; Anale stekels: 0; Anale zachte stralen: 8 - 10. Diagnosis: medium sized, robust species with short head (16.4-22.8% SL) and snout (23.3-28.2% HL); dorsal fin origin just opposite to pelvic fin origin; caudal fin shallowly forked, lobes short (112.7-126.0% TL) and rounded; longest dorsal fin ray 92.9-1333.3% HL (Ref. 26644).
Body shape (shape guide): elongated; Cross section: circular.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Maximum total length recorded is 68mm; inhabits cool quiet streams; feeds on detritus; no marked spawning period (Ref. 26644).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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Seegers, L., 1995. Revision of the Kneriidae of Tanzania with description of three new Kneria species (Teleostei: Gonorhynchifromes). Ichthyol. Explor. Freshwat. 6(2):97-128. (Ref. 26644)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)

  Kwetsbaar (VU) (D2); Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: 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).
Trofisch niveau (Ref. 69278):  2.0   ±0.00 se; based on food items.
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (48 of 100). 🛈