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) >
Doradidae (Thorny catfishes)
陶樂鯰科 (Thorny catfishes) > Doradinae
Etymology: Doras: Greek, doras = skin (Ref. 45335).
More on author: Linnaeus.
Issue
Forms inhabiting lower Amazonas and lower Orinoco are tentatively identified as D. carinatus and may represent one or more undescribed species.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水; 半鹹淡水 居於水底的. 熱帶
South America: Essequibo River basin and other coastal drainages east to mouth of Amazon River, possibly in lower Amazon and lower Orinoco River basins. Forms inhabiting lower Amazon and lower Orinoco are tentatively identified as Doras carinatus and may represent one or more undescribed species.
南美洲: Essequibo 河流域與其他的海岸流域東至亞馬遜河口, 可能地在亞馬遜河下游與奧里諾科河河流域下游。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 37054)
背棘 (總數) : 1; 背的軟條 (總數) : 6; 臀鰭軟條: 11 - 15. Body elongated, without scales but with a range of 33-35 spiny bony plaque which runs along the length of the lateral, starting from the extreme end of the caudal fin up to the point directly below the origin of the dorsal fin. Head is pointed and laterally compressed, its width being far less than its length. Eyes are high and are situated in the posterior half of the head. Mouth is inferior, provided with a pair of maxillary barbels branching into 12 or 13 branches and 4 short mandibular barbels. Adipose fin short
延長的身體, 沒有鱗片但是有沿著側部的長度的多種的 33-35個刺狀的骨板, 開始尾鰭的從最末端在背鰭起點之下直接地向上到點。 頭部是尖而側扁的, 它的寬度遠少於它的長度。 眼是高的而且被位於頭部的後半段之中。 嘴是下方的,具有一個成對的顎觸鬚分岐進入 12 或 13個分支與 4個短的顎觸鬚。 脂鰭短
Can emit sounds by moving its pectoral spines. Every basic unit of sound emitted lasts for 60-70 millisecond, with a frequency of 60-90 Hertz corresponding to the reply frequency of the muscles utilized (Ref. 35381).
能藉由移動它的胸棘發出聲音。 每一基本的單位聲音發出持續 60-70 毫秒了, 對應到使用的肌肉的答覆頻率的頻率為 60-90 赫茲.(參考文獻 35381)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Essequibo 河流域與其他的海岸流域東至亞馬遜河口, 可能地在亞馬遜河下游與奧里諾科河河流域下游。
Sabaj, M.H. and C.J. Ferraris Jr., 2003. Doradidae (Thorny catfishes). p. 456-469. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37054)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 15 February 2021
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00528 - 0.02384), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.8 ±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).
