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) >
Loricariidae (Armored catfishes)
甲鯰科 (Armored catfishes) > Hypostominae
Etymology: Guyanancistrus: Composed from Guyana + see under Ancistrus.
More on authors: Heitmans, Nijssen & Isbrücker.
Issue
See Le Bail et al. (2000:236, fig.) for complementary description with biological observations and geographical distribution; 12S and 16S mitochondrial rRNA gene sequences used in a molecular phylogeny of Loricariidae by Montoya-Burgos et al. (1998: figs. 3,4,6 as Lasiancistrus niger).
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 居於水底的. 熱帶
South America: Atlantic coastal drainages of the Guianas, from Nickerie to Oyapock River basins.
南美洲: 圭亞那的大西洋海岸流域, 從 Nickerie 到 Oyapock 河流域。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 14.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 36713)
The most ubiquitous, frequently occurring and abundant species of this genus. Occurs in all kinds of streams where the substrate is rocky and the water is flowing (Ref. 35381). Found in great numbers in zones of plunging waters (Ref. 27188). May be found together with Lithoxus in little forest creeks as well as in rapids (Ref. 35381).
最到處存在的, 時常出現與這一個屬的豐富種。 出現於底部是岩石的各種的溪流與水正在流動的地方。 (參考文獻 35381) 在急流地區中大量發現了。 (參考文獻 27188) 可能被發現在小森林小溪中伴隨著 Lithoxus 以及在急流中.(參考文獻 35381)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 圭亞那的大西洋海岸流域, 從 Nickerie 到 Oyapock 河流域。
Silva, G.S.C., F.F. Roxo and C. Oliveira, 2015. Two new species of Pseudancistrus (Siluriformes: Loricariidae) from the Amazon basin, northern Brazil. ZooKeys 482:21-34. (Ref. 99871)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
無危 (LC) ; Date assessed: 27 October 2020
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00866 - 0.02902), b=3.02 (2.87 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
回復力 (參考文獻
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 (10 of 100).
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