分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Eponymy: Dr David Coates is a marine biologist and limnologist whose bachelor’s and master’s degrees were awarded by the University of Newcastle-upon-Tyne, England. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶; 3°S - 6°S
Oceania: endemic to Sepik and Ramu rivers in Papua New Guinea.
大洋洲: 在巴布亞新幾內亞的 Sepik 的特有種與 Ramu 河。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 36 - ? cm
Max length : 75.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2847); common length : 45.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 9233); common length :45 cm SL (female); 最大体重: 5.0 kg (Ref. 9233)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 1; 背的软条 (总数) : 7; 臀棘: 0; 臀鳍软条: 19 - 21.
Found in rivers only. Occurs at temperatures ranging from 26 to 32°C. Mainly diurnal. Feeds mainly on fine and coarse detritus, other plant material (particularly seeds and small pieces of bark), and especially prawns. Also preys on aquatic insects and nymphs, fishes, worms and leeches (Ref. 2847).
只有发现于河了。 生存在温度范围从 26 到 32个 ° C. 主要日行性。 主要吃细而粗糙的碎屑，其他的植物 (特别地种子与小片的吠声), 与尤其虾。 也捕食水生昆虫与蛹，鱼，蠕虫与水蛭。 (参考文献 2847)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Mouthbrooder.大洋洲: 在巴布亞新幾內亞的 Sepik 的特有種與 Ramu 河。
Coates, D., 1991. Biology of fork-tailed catfishes from the Sepik River, Papua New Guinea. Environ. Biol. Fishes 31(1):55-74. (Ref. 9233)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.0 ±0.41 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (57 of 100).
![Image of Potamosilurus coatesi (Coates\](/images/thumbnails/gif/tn_ARIIDAT0.gif "Image of Potamosilurus coatesi (Coates\")