分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Auchenipteridae (Driftwood catfishes)
頸鰭鯰科 (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
生態學
; 淡水; 半鹹淡水 居於水底的; 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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 22.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 37098); common length : 25.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 3270)
背棘 (總數) : 1; 背的軟條 (總數) : 6; 臀棘: 0; 臀鰭軟條: 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).
身體是厚的被相較於的 Auchenipterus 。 吻非常圓形, 具有一個隱藏下頜。 普通大的眼是側面的位置。 曲折的側線是完全的。 鰓刺是短與很多的。 尾鰭有 17根棘。 (參考文獻 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.
在半鹹淡的河口中發現在泥底部上了。 可能偏愛大河與些微地半鹹淡水域.(參考文獻 11225,27188) 形成非常密集的魚群在泥沙底上面。 雜食性, 具有一個趨向食碎屑的食性。 在村落廢水的區域中搜尋食物。 在繁殖的時候, 向十二月, 腹鰭與下顎變成粉紅色。 此時，分別地，雄魚與雌魚的成熟生殖腺的重量佔 10% 與 25%, 體重。 (參考文獻 35381) 在市場上銷售生鮮地了。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
人類使用
漁業: 低經濟; 誘餌: 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).
營養階層 (Ref.
69278): 2.0 ±0.00 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
