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Pangasius polyuranodon Bleeker, 1852

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Pangasius polyuranodon
Picture by Baird, I.G.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Siluriformes (Catfishes) > Pangasiidae (Shark catfishes)
Etymology: Pangasius: The Vietnamese name of a fish (Ref. 45335).
More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水; 半咸淡水 底中水层性; 河川洄游 (Ref. 51243). 熱帶

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Asia.
亞洲。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - 20 cm
Max length : 80.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 46915)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 2; 背的软条 (总数) : 6 - 8; 臀棘: 0; 臀鳍软条: 33 - 43. Body somewhat elongated with short predorsal length (25.2-29.2% SL); a long caudal peduncle (17.2-21.8% SL); short head length (16.1-20.1% SL); and, short mandibular barbels (length 11.7-42.2% HL). Swim bladder 3-chambered, extending to above anal-fin base (Ref. 46915). Dorsum dark blue to blue-black; 3-4 lowermost principal caudal rays white; vomerine teeth appearing as 2 joined patches in juveniles (Ref. 12693); vomerine teeth united into quadrangular patch, 1.5 times broader than long, not confluent with palatine teeth patch; anal fin base elongate, its length 3.1-3.6 times in SL; dorsal and pectoral fin spines slender; snout blunt (Ref. 43281).
身体略微瘦长的有短前背的长度 (25.2-29.2% SL); 一个长的尾柄 (17.2-21.8% SL); 短头长 (16.1-20.1% SL); 并且, 短的颚触须 (长度 11.7-42.2% HL). 泳鳔 3-腔室的, 延伸至臀鳍基底上方.(参考文献 46915) 背面深蓝色到蓝黑色的; 3-4 最低的主要尾鳍鳍条白色; 犁骨齿在稚鱼中呈现 2个融合的区块;(参考文献 12693) 犁骨齿结合成四边形的小区块了,1.5 倍宽度大于长度, 不与颚齿小区块汇合; 臀鳍基底延长, 它的长度 3.1-3.6 标准体长比率; 背部的与胸鳍棘细长的; 吻钝的.(参考文献 43281)

生物学特性     字汇 (例如 epibenthic)

Facultative air-breathing (Ref. 126274); Found in lakes and rivers (Ref. 56749). Occurs in estuaries and lower reaches but has also been observed in the upper reaches during the rainy season. Species is omnivorous with a tendency to opportunism (Ref. 46915).

栖息于河口与下游但是已经也被在上游在雨季的时候观察。 种是杂食性的具有一个投机主义的趋向.(参考文献 46915)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

亞洲。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Pouyaud, L., R. Gustiano and G.G. Teugels, 2002. Systematic revision of Pangasius polyuranodon (Siluriformes, Pangasiidae) with description of two new species. Cybium 26(4):243-252. (Ref. 46915)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)

  最不相关 (LC) ; Date assessed: 07 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

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网络资源

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00216 - 0.00967), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.8   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  High vulnerability (59 of 100).