分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Auchenipteridae (Driftwood catfishes) > Auchenipterinae
Etymology: Pseudauchenipterus: Greek, pseudes = false + Greek, auchen = neck + Greek, pteron = wing, fin (Ref. 45335).
More on author: Bloch.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 居于水底的; pH range: 6.5 - 8.0; dH range: ? - 30. 熱帶; 20°C - 25°C (Ref. 2060)
South America: Lower reaches of rivers and into estuaries from Venezuela to Brazil, at least to Bahia, including southern Trinidad.
南美洲: 河川下游與進入來自委內瑞拉到巴西，至少到 Bahia 的河口之內, 包括千里達南部。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 22.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 37098); common length : 25.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3270)
背棘 (总数) : 1; 背的软条 (总数) : 6; 臀棘: 0; 臀鳍软条: 20 - 25. Body is thick compared to that of Auchenipterus. Snout is very rounded, with a recessed lower jaw. The moderately large eyes are lateral in position. The zigzag lateral line is complete. The branchiospines are short and numerous. The caudal fin has 17 spines (Ref. 35381).
身体是厚的被相较于的 Auchenipterus 。 吻非常圆形, 具有一个隐藏下颌。 普通大的眼是侧面的位置。 曲折的侧线是完全的。 鳃刺是短与很多的。 尾鳍有 17根棘。 (参考文献 35381)
Found over muddy bottoms in brackish river mouths. Probably prefers large rivers and slightly brackish waters (Ref. 11225, 27188). Occurs in very thick schools over muddy bottoms. Omnivorous, with a tendency towards detritivorous feeding. Searches for food in the zones of the village waste waters. During reproduction, towards the month of December, the ventral fins and the mandible turn pink. At this time, the weight of the male and female's mature gonads account for 10% and 25%, respectively, of the body weight (Ref. 35381). Marketed fresh.
在半咸淡的河口中发现在泥底部上了。 可能偏爱大河与些微地半咸淡水域.(参考文献 11225,27188) 形成非常密集的鱼群在泥沙底上面。 杂食性, 具有一个趋向食碎屑的食性。 在村落废水的区域中搜寻食物。 在繁殖的时候, 向十二月, 腹鳍与下颚变成粉红色。 此时，分别地，雄鱼与雌鱼的成熟生殖腺的重量占 10% 与 25%, 体重。 (参考文献 35381) 在市场上销售生鲜地了。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 河川下游與進入來自委內瑞拉到巴西，至少到 Bahia 的河口之內, 包括千里達南部。
Ferraris, C.J. Jr., 2003. Auchenipteridae (Driftwood catfishes). p. 470-482. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37098)
人类利用
渔业: 低经济; 诱饵: usually
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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=0.01259 (0.00903 - 0.01756), b=2.89 (2.80 - 2.98), in cm total length, based on LWR estimates for this species (Ref.
93245).
营养阶层 (Ref.
69278): 2.0 ±0.00 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): Low vulnerability (17 of 100).
