分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Carangaria/misc (Various families in series Carangaria)
鱸形目 (Various families in series Carangaria) >
Polynemidae (Threadfins)
馬鮁科 (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
生態學
; 淡水 居於水底的. 熱帶
Asia: Kapuas River, Kalimantan and the Musi and Batanghari rivers, Sumatra, Indonesia.
亞洲: 卡普阿斯河，加里曼丹與 Musi 與 Batanghari 河，印尼的蘇門答臘。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 52.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9685)
簡短描述
型態特徵 | 形態測量圖
背棘 (總數): 9; 背的軟條 (總數): 13-14; 臀棘 3; 臀鰭軟條: 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).
後頭骨輪廓凹曲當成魚時。 胸的絲狀突起 7 有三個延伸超過尾鰭基底與第五個延伸超過尾鰭葉的頂端的絲狀突起。 長的胸鰭鰭條,24-26% 的 SL.(參考文獻 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).
在二個印尼的島上已知只來自三條河了: 卡普阿斯河，加里曼丹與 Musi 與 Batanghari 河，蘇門答臘。 這些河是一條大的河，遠古時期的中央或 Sunda 河北方部的部份, 在 Sundaland 上在更新世的時候, 最後的寒冷時期大約在 12,000 年以前。 地理的證據指出此魚種在這條廣泛的更新世河中是適應良好的到淡水流域,然而其他的 Polydactylus 種通常海洋。 藉由 Sundaland 水下大約 100 公尺, 這種現在在目前被侷限於 3 知道地點。 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 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 卡普阿斯河，加里曼丹與 Musi 與 Batanghari 河，印尼的蘇門答臘。
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)
人類使用
水族館: 商業性
更多資訊
俗名同種異名新陳代謝捕食者生態毒物學繁殖成熟度產卵場產卵群集孕卵數卵卵發育
年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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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).
營養階層 (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
