分类 / Names
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Teleostei >
Carangaria/misc (Various families in series Carangaria) >
Polynemidae (Threadfins)
Etymology: Polynemus: Greek, poly = a lot of + Greek,nema = filament (Ref. 45335); aquilonaris: From the Latin for northern, in reference to the northern distribution (Indochina) of the species, compared with that of the related Polynemus dubius (Ref. 49954).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 居于水底的. 热带
Asia: Chao Phraya and Mekong River systems and from Lake Tonle Sap and related rivers.
亚洲: 湄南河与湄公河流域与从湖 Tonle Sap 与相关的河。
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 15.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 49954)
背棘 (总数) : 9; 背的软条 (总数) : 15 - 19; 臀棘: 3; 臀鳍软条: 11 - 13; 脊椎骨: 25. Eight first dorsal fin spines; 7 pectoral filaments, upper 2 filaments longer than TL; vomer with villiform teeth; orbit diameter 4% of SL; posterior portion of maxilla less than orbit diameter (Ref. 49954).
八根第一背鳍棘; 7个胸的丝状突起, 上面的 2个丝状突起长度超过 TL; 犁骨有绒毛状的齿; 眼窝直径 4% 的 SL; 颚骨的在后部部分少于眼窝直径。 (参考文献 49954)
Found on sandy or muddy bottoms of freshwater rivers and estuaries (Ref. 49954). Feeds on small crustaceans, small fishes, and benthic organisms (Ref. 57343). Exported to Japan as an ornamental fish (Ref. 57343). Esteemed food fish in the Chao Phraya and Mekong rivers and at Tonle Sap Lake (Ref. 57343).
栖息于淡水河与河口的沙底或泥底了。 (参考文献 49954) 吃小型甲壳动物,小鱼与底栖的生物。 (参考文献 57343) 作为一个观赏鱼输出了至日本。 (参考文献 57343) 在湄南河中赞赏食用鱼,而且湄公河而在 Tonle Sap 湖。 (参考文献 57343)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
亚洲: 湄南河与湄公河流域与从湖 Tonle Sap 与相关的河。
Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)
人类利用
渔业: 商业性; 水族馆: 商业性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00308 - 0.01483), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.8 ±0.56 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 (10 of 100).