分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Loricariidae (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
生态学
; 淡水 居于水底的. 亞熱帶的
South America: southeastern Brazil.
南美洲: 巴西東南方。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL 雄鱼/尚未辨别雌雄; (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).
栖息于溪流有岩石的与沙质底部, 大部份在浅滩与洄水区向上到 30 公分深中, 水流缓慢的地方.(0.510 公分/sec 的) 大部分在白天期间觅食有一些夜晚也被记录的活动。 啃食生长在岩石与生长水中的植物上的微小的藻类，大部分是硅藻与绿藻; 偶而吃宝刀鱼与 simuliid 仔鱼。 在有密集沉淀物的地方上的啃食之前，它头部向下制造摆动运动逐出沉淀物。 当啃食藻类的时候在底部上, 它作强有力的嘴运动，而且急动运动的移动可能与制造交互的啃食而且吸附到底部的它的嘴有关了。 啃食在底部上离开独特的，平行的与瘦长的标志。 密度可能达到被有日照的支流的森林覆盖与 0.15 fish.m-2 遮蔽的水流支流的大约 0.09 fish.m-2 。 (参考文献 26630)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
人类利用
渔业: 没有兴趣
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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).
营养阶层 (Ref.
69278): 2.2 ±0.08 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
