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Teleostei >
Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Eponymy: Dr Stephen Hamar Midgley (1918–2014) was an amateur ichthyologist and limnologist whose honorary doctorate was awarded by the University of Queensland (1994). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 底中水层性. 熱帶
Oceania: northern Australia.
大洋洲: 澳洲北部。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 140 cm SL 雄鱼/尚未辨别雌雄; (Ref. 44894); common length : 50.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 44894)
简单描述
检索表 | 型态特徵 | 形态测量图
臀鳍软条: 16 - 19; 脊椎骨: 55 - 57. Eye size 12.9-21.8% HL. Because of its similarity to A. paucus, the remaining diagnosis refers to both A. midgleyi and A. paucus: a sleek body; strong jaws; jaws upturned slightly at symphyses, mouth broad; snout truncate in profile; head oblong, its width averaging 66% HL. Supraoccipital process narrow with parallel margins. Numerous fine, sharp teeth on palate in transverse band of four oblong groups. No rakers on posterior aspect of gill arches. Barbels thin and short, rarely reaching beyond pectoral fin base and less than 25% SL (Ref. 40908).
眼睛大小 12.9-21.8% HL。 由于它的类似 A. paucus, 剩余的鉴别参考依据为 A. midgleyi 和 A. paucus: 一个光滑的身体; 强的颚; 颚朝上的些微地在愈合处, 嘴宽的; 吻截形的轮廓; 头部长方形, 它的宽度平均 66% HL。 上枕骨突起狭窄的有平行的边缘。 很多的细, 锐利的在四个长方形群的横跨条纹中牙齿在上颚。 没有耙鳃弓的在后部面。 触须细又短的, 很少地超过胸鳍基底而且少于 25% SL.(参考文献 40908)
Inhabits in lakes, billabongs, rivers and to a lesser extent brackish estuaries and the tidal portion of rivers. Found in clear or turbid fresh water reservoirs and waterholes. Water is typically warm (23-35°C), with pH between 7.0-8.7 (Ref. 44894). Feeds mainly on fishes, prawns and crayfish. Various arthropods are also consumed. Breeds early in the wet season, sometimes extending into the late wet (November to March). Eggs are incubated orally by the male for 5-6 weeks; brooding males form groups in deeper water. Juveniles grow quickly, attaining 20-30 centimeters by the end of the first year, and sexual maturity is reached after 3 years. An excellent eating fish, rapidly growing in popularity (Ref. 44894).
栖息在湖，死水潭，河中与对一个较少的范围半咸淡水河口与河的潮汐部分。 发现于清澈或混浊的淡水水库与水坑了。 水典型温暖的 (23-35 °C), 酸碱值在 7.0-8.7之间.(参考文献 44894) 主要吃鱼，虾与小龙虾。 各种不同的节肢动物也被消费。 早在湿季的繁殖, 有时延伸到迟者内变湿。 (十一月到三月) 卵被口部地孵化藉由雄鱼 5-6 数个星期; 孵雄性形式聚集在深水中。 稚鱼生长得很快,达到 20-30个公分藉由第一个年的末端，而且性成熟在 3 年之后被达成。 一个很好吃鱼,快速地在名聲方面生長.(參考文獻 44894)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
大洋洲: 澳洲北部。
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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): 4.1 ±0.61 se; based on food items.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
