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: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335).
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 6.0 - 7.0; dH range: 2 - 15. 亞熱帶的; 20°C - 30°C (Ref. 12468)
South America: widely distributed east of the Andes from the Orinoco to the La Plata River basins.
南美洲: 廣泛地分佈了安迪斯山脈從奧里諾科河到 La Plata 河流域以東。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 11.0, range 11 - ? cm
Max length : 44.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 96624); 最大體重: 113.60 g (Ref. 111130)
Known to be gregarious, timid and nocturnal (Ref. 27188). Prefers deep still waters (Ref. 75964). Found in ponds (Ref. 11229) and creeks with a substrate rich in plant debris (Ref. 12225). This gymnotiform fish can be found in colder waters of 18°C (Ref. 10011). Electric organ discharge (EOD) frequency cues have been experimentally shown to play a role in species and sex recognition in this species (Ref. 10598). Playback of a conspecific male's electric courtship display elicited spawning in ripe females. Diel rhythmic change in EOD may be manifested by the increase in EOD amplitude at night among dominant breeding males as they compete with other conspecifics (Ref. 10599). A fractional spawner; fecundity reported at 905 eggs (Ref. 10605). Males reportedly reach 45 cm TL, females to 20 cm TL (Ref. 1672).
已知是群居的﹐膽小的與夜行的.(參考文獻 27188) 發現於池塘 (參考文獻 11229)了，而且小溪具有一個底部豐富的在植物殘枝.(參考文獻 12225) 這一個 gymnotiform 魚在 18 °C 的較寒冷的水域中被發現於。 (參考文獻 10011) 發電器放電 (EOD) 頻率開端實驗式地曾經顯示扮演種的一個角色而且扮演這種的性別辨認.(參考文獻 10598) 同種雄魚的電求偶期顯現的錄音再生引出產卵在成熟的雌性中。 當他們競爭的時候，日週期性的 EOD 方面的旋律改變在優勢的繁殖期的雄性之中可能是藉由顯示 EOD 廣闊的增加在晚上與其它的同種在一起.(參考文獻 10599) 一個少產的魚種; 孕卵數在 905個卵報告。 (參考文獻 10605) 雄性據報告達到 45 cm TL ，雌性到 20 公分TL 。 (參考文獻 1672)
Lays 100-200 eggs which adhere to leaves of aquatic plants (Ref. 27188).南美洲: 廣泛地分佈了安迪斯山脈從奧里諾科河到 La Plata 河流域以東。
Albert, J.S., 2003. Sternopygidae (Glass knifefishes,Rattail knifefishes). p. 487-491. 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. 39524)
人類使用
漁業: 沒有興趣; 水族館: 商業性
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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=0.00229 (0.00178 - 0.00295), b=2.89 (2.82 - 2.96), in cm total length, based on LWR estimates for this species (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Fec=40-160 (per batch)).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
