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Teleostei (teleosts) > Gonorynchiformes (Milkfishes) > Kneriidae (Shellears)
More on author: Poll.

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

Freshwater; demersal. Tropical; 18°C - 22°C (Ref. 13614)

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Africa: only recorded from 2 affluents of the upper Ruaha (including the Kimani river) in Tanzania (Ref. 26644, 89112).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.4 cm SL male/unsexed; (Ref. 89112)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 10 - 11; Anal spines: 0; Anal soft rays: 8 - 9; Vertebrae: 43. Diagnosis: body relatively slender (Ref. 26644). Dorsal fin origin above or slightly before pelvic fin origin; body depth 6.5-9 times in SL; head length 4.5-5.9 times in SL (Ref. 26644, 89112). Head width 44.9-53.4% HL; snout length 37.7-49.4% HL (Ref. 26644). Pectoral fin length 4.9-6.1 times in SL (Ref. 26644, 89112). Pelvic fin 14.2-18.2% SL (Ref. 26644), with 9-10 rays (Ref. 26644, 89112). 98 to about 120 scales in lateral line (Ref. 26644, 89112). Caudal peduncle 1.8(juv.)-2.2 times longer than deep (Ref. 89112), 72.8-100% HL (Ref. 26644). Eye diameter 4.4(juv.)-5.5 times in HL, 1.7(juv.)-2.2 times in interorbital distance (Ref. 26644, 89112), 1.8-2.25 times in snout length (Ref. 89112). 13-16 pectoral fin rays (Ref. 26644, 89112). Color pattern with many small dark spots with an irregular edge on the back; if larger spots are present, they show light centers (Ref. 26644).

Maximum total length recorded is 76.8mm (Ref. 89112).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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 Red List Status (Ref. 130435: Version 2024-1)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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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).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Parakneria tanzaniae Poll, 1984