分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶; 1°S - 6°S
Asia and Oceania: Indonesia (Mamberamo river system in Irian Jaya) and Papua New Guinea (Ramu and Sepik river system). Often misidentified as Arius leptaspis, a closely related species from southern New Guinea.
亞洲與大洋洲: 印尼 (在伊裡安加亞的 Mamberamo 河流域) 與巴布亞新幾內亞 (Ramu 與 Sepik 河流域). 時常被誤鑑成 Arius leptaspis, 來自新幾內亞南部的一個近親魚種。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 25 - ? cm
Max length : 55.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2847); common length : 30.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 9233); common length :30 cm SL (female); 最大体重: 1.7 kg (Ref. 9233); 最大体重: 1.7 kg
背棘 (总数): 1; 背的软条 (总数): 7; 臀棘 0; 臀鳍软条: 18 - 22
Prefers main river channels, but also occurs in lakes and on the floodplain. Feeds mainly on large crustaceans (Macrobrachium and Caridina), fishes, aquatic and terrestrial insects, nymphs and detritus. Occurs at temperatures ranging from 26 to 32°C. Mainly diurnal.
偏爱主要的河道, 也出现于湖中与在洪泛区上。 主要吃大的甲壳动物 ( Macrobrachium 与 Caridina) ，鱼，水生与陆栖的昆虫，蛹与碎屑。 生存在温度范围从 26 到 32个 ° C. 主要日行性。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Mouthbrooders. Ovary or brood mass contains 15 to 75 ripe eggs (Ref. 2847).亞洲與大洋洲: 印尼 (在伊裡安加亞的 Mamberamo 河流域) 與巴布亞新幾內亞 (Ramu 與 Sepik 河流域). 時常被誤鑑成 Arius leptaspis, 來自新幾內亞南部的一個近親魚種。
Allen, G.R., 1991. Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)
人类利用
渔业: 自给性渔业
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00269 - 0.01023), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.0 ±0.47 se; based on food items.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
