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Teleostei >
Siluriformes (Catfishes) >
Clariidae (Airbreathing catfishes)
Etymology: Xenoclarias: Greek, xenos = strange + Latin, clarias, -a, -um = shining (Ref. 45335).
More on author: Norman.
Issue
Xenoclarias holobranchus Greenwood, 1958 is considered valid in Eschmeyer (CofF ver. Jul. 2011: Ref. 87661) following Ferraris (2007: Ref. 58032). It is treated here a synonym of Xenoclarias eupogon (Norman, 1928) following Gee (1975: Ref. 104726) and Teugels (1986: Ref. 3820).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 深度上下限 10 - 79 m (Ref. 104726). 熱帶; 1°N - 3°S
Africa: endemic to Lake Victoria, occuring in the deeper waters (Ref. 78218, 104723, 104726).
非洲: 維多利亞湖的較深的水域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 20.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 104726)
Absence of suprabranchial respiratory organs and reduction of suprabranchial chamber as adaptation to deep-water habitat (Ref. 104723, 104726). Inhabits deeper areas of Lake Victoria (10 to 79 m); mostly found over muddy bottoms, not far from steep, rocky zones where it is believed to breed; sexual maturity is reached at ca. 11 cm SL (Ref. 104726). Entirely insectivorous, with preference of Chironomidae over Chaoboridae larvae (Ref. 1047726), but fish remains have also been found (Ref. 78218).
Xenoclarias eupogon is an endemic species of Lake Victoria which is threatened with extinction or has already disappeared due to predation by Nile perch and other recent ecological impacts (Ref. 35948).
栖息于湖的较深的区域 (12 对 20 公尺.) (参考文献 4967). 真须奇胡鲶〔Xenoclarias eupogon〕 是被尼罗河栖木与其他的最近生态冲击捕食的由于的和灭绝威胁，或者已经消失了的，那是的一个维多利亚湖的本地种。 (参考文献 35948,参考文献 52331)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 維多利亞湖的較深的水域。
Gee, J.M., 1975. The genus Xenoclarias (Pisces, Siluriformes) in Lake Victoria, with a redescription of Xenoclarias eupogon and notes on the biology of the species. J. Zool., Lond., 175:201-217. (Ref. 104726)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
极度濒危 (CR) (A2acde); Date assessed: 30 September 2015
人类利用
渔业: 没有兴趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [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): 3.4 ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
