分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; 河川洄游 (Ref. 51243). 熱帶
Asia: Thailand (Bang Pakong, Chao Phraya, Mae Klong, and Phetchaburi
basins) and Mekong basin in Cambodia, Lao PDR, Thailand, and Vietnam.
亞洲: 湄公河與湄南河流域。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 20.0 range ? - ? cm
Max length : 20.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 33488)
This species is distinguished from its congeners by the following set of characters: mouth terminal, strongly oblique (35–45° to midline of body); no maxillary barbels; edge of rostral cap is straight, no medial indent; flank immaculate, no longitudinal stripes; caudal peduncle immaculate, no spot; caudal fin mostly clear, with scattered melanophores; in life, pectoral, pelvic, and anal fins hyaline (Ref. 123185).
頭部大而寬的, 寬度 5.5-6.7 標準體長比率; 相當深的身體,3.2-3.4 標準體長比率; 吻不或微弱突出的; 單色的銀色身體.(參考文獻 43281)
Often found in great abundance at midwater to bottoms depths in large and small rivers. Feeds on algae, periphyton and phytoplankton. Not known to prosper in impoundments. Well known for its annual trophic migrations out to the floodplains in wet season. Returns to rivers as water levels begin to fall in October with numbers increasing through December and then slowly declining (Ref. 12693). From just upstream Phnom Penh in Cambodia to the Khone Falls this species is reported to migrate upstream during the period October-February. At Muk Kompul in Kandal Province, it migrates upstream just before the full moon. Further upstream near Kratie, migration occurs during full moon and at Sambor, migration takes place immediately after full moon. Near the Khone Falls, upstream movements continue through March but in April fish are moving in both direction. From May to July, at the start of the rainy season, it migrates downstream from the Khone Falls to the Mekong Delta. Here, the fish is reported to move out of the Mekong into canals and flooded areas in August-September. When water recedes in November-December, fish migrates to the Mekong again. Upstream the Khone Falls near Ubolratchatani in Thailand, this species moves upstream between February and June, consisting mainly of juveniles in February-March and of adults (15-20 cm) in April-June. Further upstream from Xayabouri in Laos to Chiang Khong in Thailand, upstream migrations takes place between March to July, first by juveniles, later by adults (Ref. 37770). Used to make prahoc along the Tonlé Sap, Cambodia. Often seen in the aquarium trade (Ref. 12693).
較大時在中層水域到深底部時常大量發現與小的河。 吃藻類，固著生物與浮游植物。 不知道在圈圍水域興隆。 廣為人知的出自在濕季中的到洪泛區的它的一年一次的覓食迴游。 回到河當水位開始在十月落下數目然後慢慢地衰退增加過十二月.(參考文獻 12693) 在柬埔寨到 Khone 瀑布這種從正好向上游的金邊被報告在此期間向上游移動十月-二月。 在 Kandal 省的 Muk Kompul ，它就在月圓之前溯河迴游。 進一步向上游在 Kratie 的附近，遷移發生於月圓而在 Sambor, 遷移在月圓之後緊鄰發生。 在 Khone 瀑布的附近，向上游的運動繼續過三月，但是魚正在移動上下兩個方向四月時。 從五月到七月, 在那雨季的初始, 它移動向下游的從 Khone 瀑布到湄公河三角州。 在這裡，魚被報告在八月到九月移出湄公河進入管與洪泛區。 當水在十一月到十二月後退的時候，魚再一次迴游到湄公河。 向上游在 Ubolratchatani 的附近在泰國的 Khone 瀑布, 這種在二月與六月之間向上游移動, 主要為稚魚在二月-三月與成魚 (15-20 公分) 四月時-六月。 進一步從對泰國的清孔縣的在寮國的 Xayabouri 游向上游, 向上游的迴游在三月到七月之間發生,第一個藉著稚魚, 稍後藉著成魚。 (參考文獻 37770) 用來製造了 prahoc 沿著柬埔寨的 Tonle Sap。 在水族貿易中的時常出現.(參考文獻 12693)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 湄公河與湄南河流域。
Ciccotto, P.J. and L.M. Page, 2020. Revision of the genus Henicorhynchus, with a revised diagnosis of Gymnostomus (Cyprinidae: Labeoninae). Copeia 108 (3):485-502. (Ref. 123185)
人類使用
漁業: 商業性; 水族館: 商業性
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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 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00544 - 0.01757), b=2.99 (2.84 - 3.14), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 2.0 ±0.00 se; based on food items.
Generation time: 1.5 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).
Nutrients (Ref.
124155): Calcium = 107 [58, 253] mg/100g; Iron = 2.16 [1.43, 3.31] mg/100g; Protein = 17.8 [16.1, 19.2] %; Omega3 = 0.494 [0.207, 1.168] g/100g; Selenium = 73.6 [30.7, 165.7] μg/100g; VitaminA = 63.2 [16.6, 244.7] μg/100g; Zinc = 3.01 [2.14, 4.21] mg/100g (wet weight); based on
nutrient studies.
