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Teleostei (teleosts) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Torinae
Etymology: osseensis: Named in honour of Prof. Dr. J.W.M. Osse, who initiated, together with F.A. Sibbing, the research on the Lake Tana Barbus species (Ref. 35836).
Eponymy: Dr Jan W M Osse (d: 1935) is a Dutch zoologist who studied biology at Leiden (1961) and was a member of the scientific staff there (until 1971). [...] (Ref. 128868), visit book page.

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

Freshwater; pelagic; depth range 0 - 3 m (Ref. 35836). Tropical

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Africa: southern parts of Lake Tana (Ref. 35836, 96382, 128753).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 26.4 cm SL male/unsexed; (Ref. 35836)

Short description Identification keys | Morphology | Morphometrics

A small-sized, deep-bodied species, sometimes with a slight nuchal hump (Ref. 35836). A stiff lower jaw, tapering towards a narrow, hypertrophied distal tip, covered with thick skin (Ref. 35836). The protruded mouth does not form a cylindrical tube (Ref. 35836). Long dorsal spine, 19-27% of SL (Ref. 35836). Anal and ventral fins are rather long, 19-24% and 18-21% of SL respectively, with a rather short pectoral-ventral length, 22-26% of SL (Ref. 35836). The caudal peduncle is deep, 11-12% of standard length (Ref. 35836). Scales: 12-14 predorsal scales (Ref. 35836). Live specimens are rather dark greenish brown, the back being darker, with usually greenish fins (Ref. 35836). In alcohol the basic color is a dull yellowish brown, the back being darker (Ref. 35836).

Labeobarbus osseensis especially occurs near rocky substrates in water of less than 3 m deep (Ref. 35836). It feeds on adult insects and macrophytes (Ref. 35836).

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

Main reference Upload your references | References | Coordinator | Collaborators

Nagelkerke, L.A.J. and F.A. Sibbing, 2000. The large barbs (Barbus spp., Cyprinidae, Teleostei) of Lake Tana (Ethiopia), with a description of a new species, Barbus osseensis. Neth. J. Zool. 50(2):179-214. (Ref. 35836)

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

Vulnerable (VU) (B2ab(i,v)); Date assessed: 01 May 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00430 - 0.02123), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.6 ±0.27 se; based on food items.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (22 of 100).

Labeobarbus osseensis (Nagelkerke & Sibbing, 2000)