分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
Asia: Chao Phraya and Mekong basins, Malay Peninsula, Sumatra, Java, and Borneo (Ref. 27732). Reported from Myanmar (Ref. 7050), Salween and Maeklong rivers (Ref. 26336).
Length at first maturity / サイズ / 重さ / 年齢
成熟: Lm 67.8, range 61 - 74.9 cm
Max length : 100.0 cm SL オス/雌雄の選別がない; (Ref. 30857)
背面の脊椎 (合計) : 4; 背鰭 (合計) : 8; 肛門の骨: 3; 臀鰭: 5; 脊つい: 39 - 41. Has a long more or less square, median lobe on the lower lip reaching an imaginary line between the corners of the mouth (in specimens > about 7 cm SL); upper lip rolled backwards and upwards and with a median lobe projecting upwards; no dark longitudinal stripe along the side in adults; fins blackish in large adults, yellow in juveniles, and usually 4+1/2 scales between the lateral line and the dorsal-fin origin (Ref. 27732); has 9 branched dorsal-fin rays (Ref. 12693); eyes visible in ventral view; body deep and compressed; isthmus with small distinct scales, about 16 scales between isthmus and origin of pelvic fin; gill rakers 20; supero-posterior margin of dorsal fin deeply concave; pelvic fin tip pointed, posterior margin obviously concave; tip of anal fin pointed, extending to the base of caudal fin (Ref. 13848). Also Ref. 35913.
Body shape (shape guide): fusiform / normal.
Adults inhabit pools and runs over gravel and cobble in rivers flowing through undisturbed forests (Ref. 12693). Juveniles were most commonly collected in or near rapids (Ref. 27732). Found in small rivers and streams during the dry season. Move downstream at the onset of the rainy season, but generally avoid turbid waters. Mature individuals migrate upstream after two months and spawn in July near the mouths of small streams that the young subsequently ascend. Omnivorous, feeding on both animal and vegetable matter, at times consuming toxic fruits in flooded forests, making them temporarily inedible.
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref. 43281)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
水産業: 商業; 水産養殖: 商業
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00430 - 0.02123), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.0 ±0.00 se; based on food items.
回復力 (参照
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Assuming tm>4; Fec=11,150).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (73 of 100).
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