分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Platydoras: Greek, platys = flat + Greek, doras = skin (Ref. 45335).
More on author: Linnaeus.
Issue
Widespread and geographically variable species. Le Bail et al. (2000) recognized two distinct species of Platydoras in the Rio Maroni; however, their use of available names is questionable. Accurate determination of available names and the likely discovery of undescribed species await thorough revision.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; pH range: 5.8 - 7.5; dH range: 2 - 20. 熱帶; 24°C - 30°C (Ref. 1672); 9°N - 8°S, 72°W - 50°W
South America: Amazon, Tocantins, Parnaíba, Orinoco, Essequibo River basins and coastal drainages in French Guiana and Suriname (Ref. 37054). Reported from Argentina (Ref. 56308).
南美洲: 在法屬圭亞那與蘇利南的亞馬遜河， Tocantins ， Parnaiba ，奧里諾科河, Essequibo 河流域與海岸的流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 24.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 37054)
背棘 (总数) : 1; 背的软条 (总数) : 6; 臀鳍软条: 10 - 11.
Lives on the bottom and feeds on mollusks, crustaceans, and organic debris. Frequently occurs on sandy bottoms. Often escapes into the sediment where it hides among the anfractuosities of the submerged stocks (Ref. 35381). A juvenile in a stream of the rio Araguaia was recorded to clean the piscivorous characin Hoplias cf. malabaricus (Ref. 50806).
生活在底部并且吃软件动物，甲壳动物与有机的残砾。 时常生存于砂质底部。 经常逃入沉淀物在水面下的植物的弯曲的水道之中他躲在那里中.(参考文献 35381) 在 rio Araguaia 的一个水流的一个稚鱼被记录清理以鱼为食的 characin Hoplias 比较 malabaricus 。 (参考文献 50806)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在法屬圭亞那與蘇利南的亞馬遜河， Tocantins ， Parnaiba ，奧里諾科河, Essequibo 河流域與海岸的流域。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
人类利用
渔业: 低经济; 水族馆: 商业性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.01049 - 0.03156), b=3.02 (2.87 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.0 ±0.40 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
