分類 / 名前
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Siluriformes (Catfishes) >
Pangasiidae (Shark catfishes)
Etymology: Pangasius: The Vietnamese name of a fish (Ref. 45335); mahakamensis: Named for its type locality, Mahakam basin.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水; 汽水性の 底生の漂泳性. Tropical
Asia: endemic to East Kalimantan, Indonesia.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 18.2 cm SL オス/雌雄の選別がない; (Ref. 46915)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 1; 背鰭 (合計) : 7; 肛門の骨: 0; 臀鰭: 27 - 32. Short caudal peduncle (14-16.7% SL). Large eye diameter (22.8-29.4% HL). Short mandibulary barbel (19.6-45.8% HL). Short predorsal length (30.1-32.7% SL) (Ref. 46915).
Body shape (shape guide): elongated; Cross section: circular.
Facultative air-breathing (Ref. 126274); Small specimens (smaller than 15 cm) were collected in brackish water in the river delta, while larger ones were found in the upper part. No vegetation were found at the banks, relatively strong current, deep and turbid water. An omnivorous fish, feeding mainly on insects and small fruits. Spawning periods unknown (Ref. 46915).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Pouyaud, L., R. Gustiano and G.G. Teugels, 2002. Systematic revision of Pangasius polyuranodon (Siluriformes, Pangasiidae) with description of two new species. Cybium 26(4):243-252. (Ref. 46915)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない
用具
特記事項
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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=0.00457 (0.00217 - 0.00962), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.6 ±0.27 se; based on food items.
漁業の脆弱性 (Ref.
59153): Low vulnerability (12 of 100).
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