分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Callichthyidae (Callichthyid armored catfishes)
美鯰科 (Callichthyid armored catfishes) > Callichthyinae
Etymology: Megalechis: Greek, megas, megalos = great + greek, echis, -eos = viper (Ref. 45335).
More on author: Valenciennes.
Issue
See Reis (1997) for phylogeny and Reis (1998) for detailed description.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
South America: Amazon, Orinoco and upper Paraguay River basins, as well as coastal rivers of the Guianas and northern Brazil.
南美洲: 亞馬遜河, 奧里諾科河與上面的巴拉圭河流域, 以及圭亞那與巴西到阿根廷北部的沿海河川.(參考文獻 9086)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 15.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 121647); 最大體重: 140.00 g (Ref. 121647)
Obligate air-breathing (Ref. 126274)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 亞馬遜河, 奧里諾科河與上面的巴拉圭河流域, 以及圭亞那與巴西到阿根廷北部的沿海河川.(參考文獻 9086)
Reis, R.E., P.-Y. Le Bail and J.H.A. Mol, 2005. New arrangement in the synonymy of Megalechis Reis, 1997 (Siluriformes: Callichthyidae). Copeia 2005(3):678-682. (Ref. 57766)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00243 - 0.01493), b=3.11 (2.89 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.9 ±0.3 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).
