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Hepsetus microlepis (Boulenger, 1901)

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Hepsetus microlepis
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Characiformes (Characins) 脂鯉目 (Characins) > Hepsetidae (African pikes) 擬狗脂鯉科 (African pikes)
Etymology: Hepsetus: Greek, epsetas, -e, -on = boiled, but there is the following sentence: "oí epsetoi" = certain fishes, and also could be related to "psetta" = grouper (Ref. 45335);  microlepis: The species name microlepis is derived from the Greek 'mikros' meaning small, and 'lepis' meaning scale (Ref. 108775).

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 底中水層性.

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Africa: widespread in the lower and middle Congo River basin, excluding the southern part of the Kasai and the Dja; and just upstream of Wagenia rapids in Kisangani (Ref. 108775). Also in the Gribingui River (Lake Chad basin) in Central African Republic (Ref. 108775).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 30.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 124477)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

脊椎骨: 39 - 40. Diagnosis: Hepsetus microlepis is distinguished from H. occidentalis by a larger internasal distance, 23-31% of head length vs. 20-25%, and smaller nostril-lower jaw distance, 35-44% of head length vs. 40-48%, both positively allometric characters; it is distinguished from H. odoe by a generally higher number of lateral line scales, 47-60 vs. 43-51, and by a uniform body colour vs. a vague stripe pattern from the adipose fin to the caudal fin; it is distinguished from H. kingsleyae by a greater internasal distance, 23-31% of head length vs. 16-23%, and a greater head width, 32-46% of head length vs. 26-36%, which are both positively allometric; it is distinguished from H. lineatus by a combination of characters: a higher number of epibranchial gill rakers on the first gill arch, 4-9, exceptionally 13, vs. 0-6, and a smaller distance between dorsal and adipose fin, 9.2-12.8% of standard length vs. 12.6-16.4%; Hepsetus microlepis also has a uniform body colour, whereas H. lineatus has a prominent stripe on its flanks; Hepsetus microlepis is distinguished from H. cuvieri by a higher number of gill rakers on the first arch, 13-14 vs. 8-13, and by a greater head width, 32-46% of head length vs. 29-40%, and also a greater internasal distance, 23-31% of head length vs. 19-26%, with the latter two being positively allometric (Ref. 108775).

生物學特性     字彙 (例如 epibenthic)


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


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Decru, E., J. Snoeks and E. Vreven, 2015. Taxonomic evaluation of the Hepsetus from the Congo basin with the revalidation of H. microlepis (Teleostei: Hepsetidae). Ichthyol. Explor. Freshwat. 26(3):273-287. (Ref. 108775)

IUCN 瀕危狀態 (Ref. 130435)

  未評估 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

 





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00375 - 0.01338), b=3.17 (3.00 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.0   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100).