分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes)
電鰻目 (Knifefishes) >
Sternopygidae (Glass knifefishes)
胸肛魚科 (Glass knifefishes)
Etymology: Sternopygus: Greek, sternon = sternon, + Greek, pyge = tail (Ref. 45335).
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 3.0 - 6.0. 熱帶
South America: main stem of Amazon River, lower Negro River basin in Brazil.
南美洲: 亞馬遜河的主流, 在巴西的尼格羅河流域下游與中游。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 56.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 39524); 最大體重: 250.00 g (Ref. 52797)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 0; 臀鰭軟條: 195 - 312. Body and head of living specimens uniformly black or very dark purple-brown with no humeral spot or patch; juveniles undergo striking pigmentation change from uniformly black by day to very pale with two distinct vertical saddle-like markings at night; dorsal margin of head well rounded (very convex) in adults (Ref. 52797).
身體與活標本的頭部均勻黑色或非常深紫色的-褐色的有沒有肩部的斑點或小區塊; 稚魚歷經顯著的顏色改變從均勻黑色白天到非常灰白的有兩個明顯的垂直像鞍狀斑一樣的斑紋在晚上; 當成魚時的頭部相當圓的 (非常中凸的) 的上緣.(參考文獻 52797)
描述: 尾鰭不存在。
Inhabits blackwater rivers and their seasonally inundated floodplain lakes and forests (Ref. 52797). Feeds on invertebrates (Ref. 52797).
棲息於死水的河與他們的季節性浸水洪泛區湖與森林。 (參考文獻 52797) 吃無脊椎動物。 (參考文獻 52797)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 亞馬遜河的主流, 在巴西的尼格羅河流域下游與中游。
Crampton, W.G.R., K.G. Hulen and J.S. Albert, 2004. Redescription of Sternopygus obtusirostris (Gymnotiformes: Sternopygidae) from the Amazon basin, with description of osteology, ecology and electric organ discharges. Ichthyol. Explor. Freshwat. 15(2):121-134. (Ref. 52797)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 03 December 2020
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.42 se; based on food items.
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
