分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gonorynchiformes (Milkfishes)
鼠□目 (Milkfishes) >
Kneriidae (Shellears)
克奈魚科 (Shellears)
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335); uluguru: Named for the Uluguru Mountains, Tanzania, where the fish have first been collected; a noun in apposition (Ref. 26644).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: 7.2 - 7.2. 熱帶
Africa: restricted to the Upper Ruvu drainage on the eastern and possibly southeastern slopes of the Uluguru mountains, Tanzania (Ref. 26644).
非洲: Ruvu 流域， Uluguru 山，坦尚尼亞上游。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 26644)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 9 - 10; 臀棘: 0; 臀鰭軟條: 9 - 11. Diagnosis: small species with long head, 18.8-25.0% SL; snout relatively long, 28.6-37.0% SL, with narrow cleft and peculiar structure of the inferior positioned mouth; opercular disc of males shallow, with rounded outer edge; pectoral fin long, 14.9-17.7% SL; preanal length relatively short, 65.0-71.9% SL; 79-87 lateral line scales, which tends to increase with increasing length of the fish; distinct blackish streak from tip of snout to caudal fin, which may be coverd by dark bluish spots; dorsal fin origin clearly behind pelvic fin origin (Ref. 26644).
Maximum total length recorded is 5.31cm TL; inhabits clear streams and rivers with very fast current to more gentle waterflow, but more numerous in the quieter stretches; omnivorous, but feeds mainly on algae and aufwuchs rasped off from stones; apparently no marked spawning season (Ref. 26644).
用對比較溫和的水水流的很快速的水流棲息於清澈溪流與河。 眾多的在較安靜的支流。 主要吃藻類與附著生物從石頭上銼下來的。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
非洲: Ruvu 流域， Uluguru 山，坦尚尼亞上游。
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)
人類使用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
營養階層 (Ref.
69278): 2.0 ±0.00 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
