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) >
Trichomycteridae (Pencil or parasitic catfishes)
毛鼻鯰科 (Pencil or parasitic catfishes) > Vandelliinae
Eponymy: Dr Domenico Agostino Vandelli (1735–1816) was an Italian naturalist who maintained a lengthy correspondence with Linnaeus. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Paraná, Paraguay and Uruguay River basins.
南美洲: Parana-巴拉圭-烏拉圭的流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 2.8 cm NG 雄魚/尚未辨別雌雄; (Ref. 39970)
Found to exhibit parasitic traits (Ref. 6868). Inhabits rivers with sandy to muddy bottom.
Forages both during the day and at night seeks the gill chambers of larger fishes, especially catfishes. Enters and leaves the gill chamber during the host's ventilating movements: feeds on blood drawn from the gill filaments and may stay in the gill chamber for 1-3 min; when gorged with blood, moves to the bottom and buries itself in the sand. A single large catfish tethered on the river bank may feed thousand of these parasitic catfish over a period of up to 6 hours. Two females, 1.8 cm TL, caught in January (wet season) had about 150 mature oocytes each, and one male 2.0 cm TL had well-developed testes. Large numbers of this fish may kill fishes tethered by fishermen (Ref. 40386).
發現展現寄生的特徵。 (參考文獻 6868) 棲息於河底部為砂質或泥質的地方。
覓食兩者在白天期間而在夜晚尋找較大的魚的鰓室, 尤其鯰魚。 在寄主的換氣運動的時候進入而且離開鰓室: 吃被取自鰓絲的血液而且可能停留在鰓室中在 1-3 分鐘之中; 當吃飽血液, 移動到底部而且掩藏於沙子中。 在河岸上被鍊栓的一個大的鯰魚可能吃成千的這些個寄生的鯰魚超過 6 小時。 二個雌性 , 1.8 公分TL,在有大約 150個成熟的卵母細胞的一月 (濕季) 捕獲了每個, 與一個雄魚 2.0 公分TL 有了發展良好的睪丸。 許多的這一個魚可能殺被漁夫鍊栓的魚。 (參考文獻 40386)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Parana-巴拉圭-烏拉圭的流域。
Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p. (Ref. 6868)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 08 December 2020
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
