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. ; 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.
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.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Mouthbrooders. Ovary or brood mass contains 15 to 75 ripe eggs (Ref. 2847).
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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特别资料
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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).