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Hemibrycon sierraensis García-Alzate, Román-Valencia & Taphorn, 2015

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drawing shows typical species in Characidae.

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) > Characidae (Characins; tetras) 脂鯉科 (Characins; tetras) > Stevardiinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335);  sierraensis: Named for the collection locality, in the Sierra Nevada of Santa Marta drainage, north from Colombia (Ref. 118119).

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

; 淡水 底中水層性.

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South America, Colombia

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 7.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 118119)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背的軟條 (總數) : 10; 臀鰭軟條: 29 - 30; 脊椎骨: 40 - 41. Diagnosis: Hemibrycon sierraensis n. sp. is distinguished from all other species of the genus by having an iridescent red adipose fin in life (vs. hyaline or transparent in life, except H. divisorensis that has a reddish adipose fin) and by having a dark brown adipose fin in alcohol (vs. hyaline or transparent in alcohol); it differs from H. divisorensis, H. pautensis and H. santamartae in having the last dorsal-fin ray unbranched; it further differs from H. beni, H. boquiae, H. brevispini, H. colombianus, H. mikrostiktos, H. microformaa, H. metae, H. palomae and H. rafaelense in having a vertically elongate humeral spot that extends 3 to 4 scale rows below the lateral line series (vs. humeral spot roughly circular not extending ventrally 3 to 4 scales rows below lateral line series, or with inconspicuous, diffuse vertical extensions); it differs from H. pautensis by the number of scale series between the lateral line and the pelvic-fin insertions (4-5 vs. 6-7); it differs from H. divisorensis in the number of unbranched anal-fin rays (iii vs. iv), number of dentary teeth (10 vs. 13-16) and the number of maxillary teeth (6-7 vs. ten-13); in addition to the above characters, we found the following differences that distinguish this new species from those that occur in the same basin (and in allopatry with H. santamartae): fewer supraneurals (6 vs. 8), greater caudal peduncle depth (16.5-17.7 vs. 8.7-15.6% SL), longer head length (25.0-29.6 vs.18.4-25.2% SL) and smaller orbital diameter (23.9-34.8 vs. 33.1-45.7% SL) (Ref. 118119).

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

García-Alzate, C.A., C. Román-Valencia and D.C. Taphorn, 2015. A new species of Hemibrycon (Characiformes: Characidae), a freshwater fish from the Sierra Nevada of Santa Marta, Caribbean drainage, Colombia. Cuadernos de Investigación UNED 7(1):89-97. (Ref. 118119)

IUCN 瀕危狀態 (Ref. 130435)

  未評估 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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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=0.00813 (0.00372 - 0.01775), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (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):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).