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) > Hypoptopomatinae
Etymology: Schizolecis: Greek, schizein = to divide + Greek, lekis, -idos = a little plate (Ref. 45335).
Eponymy: Francisco Günther (d: 1912) collected specimens for the Museu Paulista, São Paulo, including the holotype of this species. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 亞熱帶的
South America: southeastern Brazil.
南美洲: 巴西東南方。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 36885); 3.1 cm SL (female)
Inhabits streams with rocky and sandy bottom, mostly in shallows and backwaters up to 30 cm deep, with slow water flow (0.5-10 cm/sec). Forages mostly during the day with some night activity also recorded. Grazes on microscopic algae, mostly diatoms and green algae growing on rocks and submersed vegetation; occasionally takes chironomid and simuliid larvae. Before grazing on a patch with dense sediment, it makes wiggling head-down movements to dislodge sediment. When scrapping algae off the substrate, it makes vigorous mouth movements, and moves by jerky movements probably related to its mouth making alternate grazing and attaching to the substrate. Grazing leaves characteristic, parallel and elongated marks on the substrate. Density may reach about 0.09 fish.m-2 in stream stretches shaded by forest canopy and 0.15 fish.m-2 in sunned stretches (Ref. 26630).
棲息於溪流有岩石的與沙質底部, 大部份在淺灘與洄水區向上到 30 公分深中, 水流緩慢的地方.(0.510 公分/sec 的) 大部分在白天期間覓食有一些夜晚也被記錄的活動。 啃食生長在岩石與生長水中的植物上的微小的藻類，大部分是矽藻與綠藻; 偶而吃寶刀魚與 simuliid 仔魚。 在有密集沉澱物的地方上的啃食之前，它頭部向下製造擺動運動逐出沉澱物。 當啃食藻類的時候在底部上, 它作強有力的嘴運動，而且急動運動的移動可能與製造交互的啃食而且吸附到底部的它的嘴有關了。 啃食在底部上離開獨特的﹐平行的與瘦長的標誌。 密度可能達到被有日照的支流的森林覆蓋與 0.15 fish.m-2 遮蔽的水流支流的大約 0.09 fish.m-2 。 (參考文獻 26630)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 巴西東南方。
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)
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00413 - 0.01600), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 2.2 ±0.08 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
