分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Carangaria/misc (Various families in series Carangaria) >
Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 热带
Asia: Kapuas River, Kalimantan and the Musi and Batanghari rivers, Sumatra, Indonesia.
亚洲: 卡普阿斯河, 加里曼丹与 Musi 与 Batanghari 河，印度尼西亚的苏门答腊。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 52.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 9685)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 9; 背的软条 (总数): 13-14; 臀棘 3; 臀鳍软条: 11. Occipital profile concave in adults. Pectoral filaments 7 with 3 filaments extending beyond caudal fin base and the fifth extending beyond tip of caudal fin lobe. Long pectoral fin rays, 24-26% of SL (Ref. 40968, 41110).
后头骨轮廓凹曲当成鱼时。 胸的丝状突起 7 有三个延伸超过尾鳍基底与第五个延伸超过尾鳍叶的顶端的丝状突起。 长的胸鳍鳍条,24-26% 的 SL.(参考文献 40968,41110)
Known only from three rivers on two Indonesian islands: Kapuas River, Kalimantan and Musi and Batanghari rivers, Sumatra. These rivers were part of one large river, the ancient Central or North Sunda River, on the Sundaland during the Pleistocene, the last cold period about 12,000 years ago. Geographic evidence indicates that the species was well adapted to the freshwater basins in this extensive Pleistocene river, whereas other Polydactylus species are generally marine. With Sundaland submerged to about 100 m, this species is now restricted to the 3 presently known localities. The longer pectoral filaments and a more slender body have been considered as an adaptation to its freshwater existence. The long pectoral filaments are useful as a sense organ to search for food in muddy waters (Ref. 40968). A food fish along the Kapuas River, Borneo (Ref. 9685).
在二个印度尼西亚的岛上已知只来自三条河了: 卡普阿斯河，加里曼丹与 Musi 与 Batanghari 河，苏门答腊。 这些河是一条大的河，远古时期的中央或 Sunda 河北方部的部份, 在 Sundaland 上在更新世的时候, 最后的寒冷时期大约在 12,000 年以前。 地理的证据指出此鱼种在这条广泛的更新世河中是适应良好的到淡水流域,然而其他的 Polydactylus 种通常海洋。 藉由 Sundaland 水下大约 100 公尺, 这种现在在目前被局限于 3 知道地点。 比較長的胸絲狀突起與一個更細長的身體曾經被當作適應它的淡水生存。 長的胸絲狀突起是有用的作為一個感覺器官在泥濘的水域中尋找食物.(參考文獻 40968) 一個食用魚沿著卡普阿斯河，婆羅洲。 (參考文獻 9685)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亚洲: 卡普阿斯河, 加里曼丹与 Musi 与 Batanghari 河，印度尼西亚的苏门答腊。
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
水族馆: 商业性
更多信息
俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.00751 - 0.04023), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
