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) > Loricariinae
Etymology:
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶; 22°C - 24°C (Ref. 13614)
South America: Ribeira de Iguape River basin in Brazil.
南美洲: Ribeira de Iguape 河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 36389)
Inhabits streams with rocky and sandy bottom; in shallow and deeper (up to 0.7 m) areas with water flow up to 70 cm per second. Forages at night, although occasional diurnal activity is also recorded. Grazes on microscopic algae, mostly diatoms and green algae growing on rugged and light-colored rocks, and submersed vegetation. Chironomid and simuliid larvae, as well as tiny crustaceans, are recorded in its diet. Before grazing on a patch with dense sediment, the fish makes wiggling head-down movements, which raise sediment and blown away by the water current. When scraping algae off the substrate, the fish makes vigorous mouth movements and jerky movements, probably related to its mouth making alternate grazing and attaching to the substrate. Density may reach about 0.1 fish per square meter both in shaded and sunned stream stretches (Ref. 26630).
棲息於溪流有岩石的與沙質底部; 在淺灘中而且更深地 (向上到 0.7 公尺) 水流大於 70 公分每秒。 覓食在晚上,雖然偶然的日行性活動也被記錄。 啃食生長在微小的藻類，大部分是矽藻與綠藻上的高低不平的與顏色較淡岩石 , 與生長水中的植物。 寶刀魚與 simuliid 仔魚, 以及極小的甲殼動物,在它的食性被記錄。 在有密集沉澱物的地方上的啃食之前，魚頭部向下製造擺動運動, 蓄養沉澱物而且吹走藉由水流。 當啃食藻類的時候在底部上, 魚作強有力的嘴運動與急動的運動, 可能與製造交互的啃食而且吸附到底部的它的嘴有關。 密度可能達到大約每平方公尺 0.1個魚在陰暗而有日照的水流支流中.(參考文獻 26630)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: Ribeira de Iguape 河流域。
Ferraris, C.J. Jr., 2003. Loricariidae - Loricariinae (Armored catfishes). p. 330-350. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre EDIPUCRS, Brasil. (Ref. 36389)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 November 2018
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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=0.00347 (0.00159 - 0.00757), b=3.14 (2.96 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.2 ±0.13 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 (10 of 100).
