分類 / Names
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Cypriniformes (Carps) >
Cyprinidae (Minnows or carps) > Labeoninae
Etymology: Labeo: Latin, labeo = one who has large lips (Ref. 45335); nunensis: Named after the River Noun where the type material was collected (Ref. 26190). Considered a synonym of Labeo parvus (Ref. 2801).
More on author: Pellegrin.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical; 10°N - 15°S
Africa: Lower Guinea endemic, found in north-western Cameroon in following rivers: Noun, Djerem, Sanaga, Kelle, Mape, Assamba, Mbam, Mekay, Meng, Nchi, Nkoup, Mvi, Mevobo , tributary of Kim and northern Mifi (Ref. 81639). Records of Labeo chariensis from Cameroon may in fact refer to Labeo nunensis.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 29.1 cm SL オス/雌雄の選別がない; (Ref. 26190)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 11 - 12; 臀鰭: 8; 脊つい: 32 - 34. Diagnosis: snout very prominent and with a more or less deep transverse furrow and numerous tubercles; some specimens additionally have numerous small, wart-like tubercles dorsally on head; small fleshy appendage at anterior end of snout; interocular profile flattened; scale formula: 38-40 (39 commonly observed); 4.5-6.5 (5.5 commonly observed, exceptionally 4.5); 3.0-4.5 (4.0 commonly observed); 16-19 (16 commonly observed); dorsal fin with 11-12 (11 commonly observed) branched rays; upper edge of dorsal fin falciform (or deeply concave); 33-34 (33 commonly observed) vertebrae; ventral fin origin located under the 4th branched dorsal ray; genital orifice situated distant from anal fin origin; sometimes a dark brown longitudinal band is present (Ref. 81639).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Reid, G.M., 1985. A revision of African species of Labeo (Pisces: Cyprinidae) and a re-definition of the genus. Verlag von J. Cramer, Braunschweig. 322 p. (Ref. 1440)
Human uses
用具
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).
