分類 / Names
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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Hemibagrus: Greek, hemi = the half + Mozarabic, bagre, Greek, pagros = a fish, Dentex sp. (Ref. 45335).
Eponymy: Dr Herman Constantijn Van der Wijck (1815–1889) was Regent of the Preanger Regencies, Java, Indonesia (which is the type locality) and invited Bleeker to a fishing party during which the river was poisoned with ‘akar toeba’ (the roots of which plant [...] (Ref. 128868), visit book page.
More on author: Bleeker.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
; 新鮮な水 底生の; potamodromous (Ref. 51243). Tropical; 22°C - 25°C (Ref. 2059)
Asia: Thailand to Indonesia.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 90.0 cm TL オス/雌雄の選別がない; (Ref. 130031)
背面の脊椎 (合計) : 1; 背鰭 (合計) : 7; 臀鰭: 10 - 13; 脊つい: 50 - 51. Can be differentiated from its congeners by the unique combination of the following characters: head extremely depressed and broad; dorsal spine well ossified, long (11.9-14.8% SL), and with 10-12 serrations on the posterior edge; cream-colored coracoidal region; caudal fin dark grey, with cream procurrent and first principal caudal rays; maxillary barbels reaching to middle of dorsal-fin base (143.7-195.4% HL) (Ref. 38441). Smooth flat skull roof; occipital process reaches basal bone of dorsal fin; 10-11 soft pectoral-fin rays; no stripe on body (Ref. 12693). Presence of white markings on pectoral fin and dorsal fin tips, anterior edge of adipose, upper and lower margins of caudal peduncle and caudal, including filaments (Ref. 43281).
Body shape (shape guide): elongated.
Lives in large rivers with fast flowing water over muddy substrate (Ref. 56749). Appears to be restricted in the middle reaches of rivers (Ref. 40801). Feeds on insects, prawns and fishes. Sold fresh in the markets (Ref. 33813).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Ng, H.H. and W.J. Rainboth, 1999. The bagrid catfish genus Hemibagrus (Teleostei: Siluriformes) in central Indochina with a new species from the Mekong River. Raffles Bull. Zool. 47(2):555-576. (Ref. 38441)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
水産業: 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=0.00776 (0.00440 - 0.01371), b=2.92 (2.77 - 3.07), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (参照
69278): 3.8 ±0.61 se; based on food items.
回復力 (参照
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Fec = 8,000).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
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