分类 / 名称
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Teleostei >
Siluriformes (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Pseudoplatystoma: Greek, pseudes = false + Greek, platys = flat + Greek, stoma = mouth (Ref. 45335).
More on author: Linnaeus.
Taxonomic Remarks
Considered as species inquirenda by some authors. Junior synonym Platystoma punctifer (Buitrago-Suárez, 2006:120) is considered valid by Buitrago-Suárez & Burr, 2007 (Ref. 59362). This species record will be modified.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 居于水底的; pH range: 6.0 - 8.0; dH range: 4 - 30; 河川洄游 (Ref. 138143); 深度上下限 5 - ? m. 熱帶; 24°C - 28°C (Ref. 1672); 8°N - 11°S
South America: Amazon, Corantijn, Essequibo, Orinoco and Paraná River basins.
南美洲: 亞馬遜河, Corintijns , Essequibo ,奧里諾科河與巴拉納河流域。
首次成熟时的长度 / 大小 / 重量 / 年龄
成熟度: Lm ?, range 53 - ? cm
Max length : 105 cm SL 雄鱼/尚未辨别雌雄; (Ref. 111728); 最大体重: 70.0 kg (Ref. 35381)
简单描述
检索表 | 型态特徵 | 形态测量图
Adults occur throughout the principal riverbeds and sometimes in the flooded areas of forests. Their biology is similar to that of P. tigrinum but appear to be more fond of shady streams. They feed at night on fish (loricariids, cichlids and characoids) as well as crabs (Ref. 6868). Foraging activities are comfined to riverbeds. The yellowish flesh is succulent and like that of other silurids, it is without bones (Ref. 27188). Females reach a more notable size. They become sexually mature at 56 cm, males at 45 cm. Fecundity is estimated at 8 million eggs per kg (Ref. 35381). Utilized for human consumption. See Loubens and Panfili, 2000 (Ref. 34213) for reproductive biology and ecology.
在主要的河床各处发生与有时在森林的洪泛区中。 它的生物学特性是类似 P. tigrinum 但是它状似更喜欢的暗溪流。 晚上捕食鱼 (甲鲶科,慈鲷科鱼类与脂鲤类) 以及螃蟹.(参考文献 6868) 觅食活动局限于河床。 它的淡黄色肉其他鲶鱼是多汁而相似的那, 它没有硬骨。 (参考文献 27188) 雌性达到一个比较显着的大小。 他们在 56 公分时性成熟了, 在 45 cm 的雄性。 孕卵数被估计每公斤八百万个卵。 (参考文献 35381) 供人类食用。
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 亞馬遜河, Corintijns , Essequibo ,奧里諾科河與巴拉納河流域。
Lundberg, J.G. and M.W. Littmann, 2003. Pimelodidae (Long-whiskered catfishes). p. 432-446. 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. 36506)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 商业性; 游钓鱼种: 是的; 水族馆: 公众的水族馆
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特别资料
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基于模型的估算
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00794 (0.00506 - 0.01247), b=3.07 (2.94 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
营养阶层 (参考文献 69278) |
4.4 ±0.78 se; based on food items. |
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (K=0.31-0.47; tm=3-5; Tmax=8.7). |
渔业脆弱性 (Ref. 59153) |
Moderate vulnerability (43 of 100). 🛈 |
价格分类 (Ref. 80766) |
Unknown.
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营养素 (Ref. 124155) |
Calcium = 33.1 [16.2, 135.9] mg/100g; Iron = 2.28 [0.77, 5.23] mg/100g; Protein = 19.2 [17.6, 20.6] %; Omega3 = 0.443 [0.172, 1.148] g/100g; Selenium = 85.6 [34.3, 188.9] μg/100g; VitaminA = 33.3 [10.0, 109.6] μg/100g; Zinc = 0.937 [0.615, 1.398] mg/100g (wet weight); based on nutrient studies. |