分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Parodontidae (Scrapetooths)
下口半脂鯉科 (Scrapetooths)
Etymology: Parodon: Latin, par = two + Latin, dens = teeth (Ref. 45335); magdalenensis: The name magdalenensis refers to the Magdalena River, Colombia, in which this species is endemic (Ref. 88955).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 大洋性. ; 6°N - 4°N, 74°W - 77°W
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: Colombia. Known from the La Miel River and its tributaries in middle Magdalena drainage, the Paila River system and tributaries of the upper Cauca River, Colombia (Ref. 88955).
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 13.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 125980); 最大體重: 49.10 g (Ref. 125980)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Parodon magdalenensis differs from all congeners by presenting a completely dark ground portion above black lateral stripe that lacks projections or spots extending dorsally, in adults (vs. base color white to yellow above lateral stripe which often has projections or spots extending dorsally); base color below lateral stripe to level of axillary scale gray (vs. body below lateral stripe same color as base color of rest of body, usually white or yellow); adults with well defined black spot from middle of pectoral fin to its tip (not reaching base), absent in juveniles (vs. chromatophores present on pectoral fin not forming well-defined spot, nor bar and often present in juveniles); no dark brown spots on dorsal part of sides above lateral stripe (vs. dark brown spots present); branched pectoralfin rays 11-14 (vs. 14-16; except P. buckleyi which has 13-15 branched pectoral rays). Parodon magdalenensis differs from P. bifasciatus by the higher number of cusps in premaxillary teeth (11-15 vs. 7-12) and the lower number of post-adipose scales (6-8 vs. 7-10, as well as from P. hilarii and P. nasus which have the same count as P. bifasciatus). It is differentiated from P. guyanensis by the number of teeth on the premaxilla (4 vs. 5) and can be distinguished from P. pongoensis and P. moreirai by the presence of a lateral band with projections above and below (vs. absence of projections in such band) and the number of scales in the lateral line (35-38 vs. 40-42 in P. moreirai), and normal sized teeth in the maxilla (vs. teeth minute or absent). It can be distinguished from most P. carrikeri by the number of scales in the lateral line (35-38 vs. 38-39), and the dark coloration along the body including most of the head (vs. ground and general color of body light in P. magdalenensis). It differs from P. suborbitalis by the lower number of cusps in premaxillary teeth (11-15 vs. 15-17) (Ref. 88955).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Londoño-Burbano, A., C. Román-Valencia and D.C. Taphorn, 2011. Taxonomic review of Colombian Parodon (Characiformes: Parodontidae), with descriptions of three new species. Neotrop. Ichthyol. 9(4):709-730. (Ref. 88955)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 10 October 2014
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基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00480 - 0.01580), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (參考文獻
69278): 2.4 ±0.1 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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