分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
Africa: River Ruo and several of its tributaries above Zoa Falls in Malawi.
非洲: 在馬拉威的在 Zoa 瀑布上面的河 Ruo 與一些它的支流。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 24.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 33082); 最大體重: 400.00 g (Ref. 33082)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 12 - 13; 臀鰭軟條: 8 - 9. Its dark olive dorsal surface and light golden ventral surface are sharply divided at the lower edge of the lateral line scale row. Its has relatively narrow mouth without barbels or with one pair of minute posterior barbels. The unbranched dorsal ray is flexible.
它的深色橄欖色背面與淡金色的腹面銳利地在側線鱗片列的下面邊緣被分開。 它的有相當沒有觸鬚的狹窄的嘴或和一對細小的在後部的觸鬚。 不分枝的背鰭鰭條是柔韌有彈性的。
Occurs in fast flowing stretches of river and deeper pools. Common particularly in rocky pools. Feeds by scraping algae off rocks with its horny lower jaw. Varicorhinus xyrocheilus occurs sympatrically and syntopically with V. dimidiatus.
出現於快速地流動河與較深的水池的支流。 普遍的特別地在岩石的水池中。 刮食藻類外海的岩石用它的角下頜。 Varicorhinus xyrocheilus 分佈區重疊而且有鄰接關係 V. dimidiatus 。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 在馬拉威的在 Zoa 瀑布上面的河 Ruo 與一些它的支流。
Tweddle, D. and P.H. Skelton, 1998. Two new species of Varicorhinus (Teleostei: Cyprinidae) from the Ruo River, Malawi, Africa, with a review of other southern African Varicorhinus species. Ichthyol. Explor. Freshwat. 8(4):369-384. (Ref. 33082)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 沒有興趣
工具
特別的報告
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網路資源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00430 - 0.02123), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (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 (20 of 100).
