分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Auchenipteridae (Driftwood catfishes) > Centromochlinae
Etymology: Gelanoglanis: Greek, gelanes, -es, -es = happy, smiling + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性; pH range: 4.0 - 5.0. 熱帶
South America: Asisa River basin in Orinoco drainage and Negro River basin.
南美洲: 在奧里諾科河流域與尼格羅河流域的 Asisa 河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 2.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 37098)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 6; 臀鳍软条: 7 - 8; 脊椎骨: 31. First lepidotrichia of rayed dorsal and pectoral fins present as flexible, unbranched fin rays lacking serrations; structure of adult-male anal fin (seven proximal radials present, two posterior-most smaller than anterior ones); adipose fin absent or, if present, a long, low fin fold; and putative smaller maximum adult body size (1.5-2.2 cm SL).
第一个有鳍条的背鳍与胸鳍的鳞质鳍条呈现成柔韧有弹性又不分枝的鳍条缺乏锯齿; 雄性成鱼臀鳍的结构;(七个近端的动脉存在的, 二个在后部-比前面的一些小的大部分) 脂鳍不存在或, 如果有的话, 一个长的，低鳍褶; 而且想像的比较小的最大成鱼身体大小 (1.5-2.2 公分 SL).
Nocturnally active, inhabiting open waters of black-water streams and rivers. Taken near the surface in or near the main channels of rivers with moderate flow. The stomach contents of one specimen taken from the Rio Asisa include adult dipterans, including one whole individual of Sciaridae and large wing fragment of a Ceratopogonidae. Matures at 1.5-2.2 cm SL.
夜行活跃, 居住于黑水溪流与河川的开放水域。 在河的主水道里或附近带接近水表面有中等的水流。 取自 Rio Asisa 的一件标本的胃内含物包括成鱼双翅类昆虫,包括蠓科昆虫的一个整个 Sciaridae 的个体与大翼碎片。 在 1.5-2.2 公分 SL 时成熟。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在奧里諾科河流域與尼格羅河流域的 Asisa 河流域。
Soares-Porto, L.M., S.J. Walsh, L.G. Nico and J.M. Netto, 1999. A new species of Gelanoglanis from the Orinoco and Amazon river basins, with comments on miniaturization within the genus (Siluriformes: Auchenipteridae: Centromochlinae). Ichthyol. Explor. Freshwat. 10(1):63-72. (Ref. 32901)
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 = 0.5625 [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): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
