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> 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).

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal. 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).

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 57.5 cm SL Männchen/unbestimmt; (Ref. 26644)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 8 - 11; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 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).

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

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | 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)

IUCN Rote Liste Status (Ref. 130435)

gefährdet, siehe IUCN Red List (VU) (D2); Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (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).

Trophic level (Ref. 69278): 2.0 ±0.00 se; based on food items.

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (48 of 100).

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Kneria ruaha Seegers, 1995