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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); divaricatus: Specific epithet is from the Latin 'divaricatus', meaning spread apart, in reference to the relatively large distance between the dorsal and adipose fins of this species.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の. Tropical
Asia: Perak River drainage in western Peninsular Malaysia.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 30.8 cm SL オス/雌雄の選別がない; (Ref. 93057)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 2; 背鰭 (合計) : 7; 臀鰭: 12 - 13; 脊つい: 51. Distinguished from all members in this species group except Hemibagrus gracilis and Hemibagrus velox in possessing a shorter adipose-fin base (11.1-15.5% SL vs. 15.1-21.1); the adipose fin is also relatively deeper compared to all species except Hemibagrus planiceps (maximum height 1.9-3.2 times in length of base vs. 2.9-6.0). Can be diagnosed from Hemibagrus gracilis in having a deeper caudal peduncle (7.3-8.0% SL vs. 6.2-7.5) and a smaller eye (11-17% HL vs. 17-21); from Hemibagrus velox in having a deeper caudal peduncle (7.3-8.0% SL vs. 6.2-7.6) and shorter inner mandibular barbels (37-44% HL vs. 42-57); from Hemibagrus bongan in having a smaller eye (11-17% HL vs. 16-20); from Hemibagrus lacustrinus in having a shorter adipose-fin base (11.1-15.5% SL vs. 18.8-20.4), a longer dorsal to adipose distance (15.4-17.6% SL vs. 7.6-10.9; adpressed dorsal fin not reaching vs. reaching origin of adipose fi n), and smaller eye (11-17% HL vs. 17-19); and from Hemibagrus planiceps in having a smaller interorbital distance (28-32% HL vs. 32-37), longer dorsal spine (12.3-12.9% SL vs. 8.3-11.7) and maxillary barbels (214-250% HL vs. 148-220) (Ref. 93057).
Body shape (shape guide): fusiform / normal.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Ng, H.H. and M. Kottelat, 2013. Revision of the asian catfish genus Hemibragus Bleeker, 1862 (Teleostei: Siluriformes: Bagridae). Raffles Bull. Zool. 61(1):205-291. (Ref. 93057)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00493 - 0.02437), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
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 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low to moderate vulnerability (28 of 100).
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