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) >
Anostomidae (Headstanders)
小口脂鯉科 (Headstanders)
Etymology: Megaleporinus: Name from Greek 'mega' meaning large or largest, plus Leporinus, the genus which most species (now in this genus) were previously assigned; refrring to the large size of most congeners..
More on author: Lütken.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: São Francisco River basin, Brazil.
南美洲: Sao 弗朗西斯科河流域巴西。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 28.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 130067); 最大體重: 450.00 g (Ref. 130067)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Teeth slightly notched, 3/3; 1--11 predorsal scales; 14 peduncular scales.
齒微凹,3/3; 1--11個前背的鱗片; 14個肉梗的鱗片。
Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Distinct pairs breed on densely grown weedy places (Ref. 205).南美洲: Sao 弗朗西斯科河流域巴西。
Ramirez, J.L., J.L.O. Birindelli and P.M. Galetti Jr., 2017. A new genus of Anostomidae (Ostariophysi: Characiformes): Diversity, phylogeny and biogeography based on cytogenetic, molecular and morphological data. Molecular Phylogenetics and Evolution, 107: 308-323. (Ref. 113781)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 November 2018
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00404 - 0.01876), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.6 ±0.1 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 vulnerability (25 of 100).
