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Gymnotus carapo  Linnaeus, 1758

Banded knifefish
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Native range | All suitable habitat
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Gymnotus carapo   AquaMaps   Data sources: GBIF OBIS
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Image of Gymnotus carapo (Banded knifefish)
Gymnotus carapo
Picture by Landines, M.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 辐鳍鱼纲 (条鳍鱼) > Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes)
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335).   More on author: Linnaeus.

环境 / 气候 / 范围 生态学

; 淡水 底中水层性; pH range: 6.0 - 7.5; dH range: ? - 15; 河川洄游 (Ref. 51243).    22°C - 28°C (Ref. 1672), preferred ?

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Central and South America: southern Mexico to Paraguay, including Trinidad.

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm 19.4, range 25 - ? cm
Max length : 76.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 79585); 最大体重: 1.2 kg (Ref. 79585)

生物学特性     字汇 (例如 epibenthic)

Aggressive (Ref. 27188). Inhabits turbid slow moving or standing waters (Ref. 11225). Found also in shallow edges of streams (Ref. 75964). Can survive when ditches, canals and small ponds dry out. (Ref. 11225). Feeds mainly at night on worms, insects (e.g. odonate larvae), shrimps, fish (preferably small characids, e.g. Ctenobrycon and Curimata) and plant matter (Ref. 7020; 10011). Oviparous (Ref. 205). Mouth brooding by males is observed in this species (Ref. 55570). Males provide parental care in nests excavated for eggs and larvae (Ref. 55570). Uses its long anal fin for locomotion. Can distinguish between a `friendly neighbor' and a potentially `threatening stranger' based on electric organ discharge (EOD) waveform alone (Ref. 10011). Relationship between EOD pattern and agonistic behavior in this species has been demonstrated (Refs. 10531, 10532, 10533). Shows auditory abilities, responding best to a frequency of 1000 Hz, with an upper limit above 5000 Hz (Ref. 10831). Also responds to vibratory stimuli (water waves: 125-250 Hz) with transient increase in EOD rate (Ref. 10834). 'Prefers' temperatures of 24-25°C (Ref. 10836).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Parental care is provided by the male. The male sits on a depression with its anal fin expanded horizontally guarding a cluster of larvae. More larvae are spread out in leaf litter up to 2 m away (Ref. 55570).

主要参考文献 Upload your references | 参考文献 | 合作者 : Campos-da-Paz, Ricardo | 合作者

Campos-da-Paz, R., 2003. Gymnotidae (Naked-back knifefishes). p. 483-486. 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. 36692)

世界自然保护联盟红皮书 (Ref. 115185)

  不评价 

CITES (Ref. 94142)

Not Evaluated

对人类的威胁

 




人类利用

渔业: 没有兴趣; 水族馆: 商业性
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俗名
同种异名
新陈代谢
捕食者
生态毒物学
繁殖
成熟度
产卵场
孕卵数

卵的发育
年龄范围
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体长-体长
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Mass conversion
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声音
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Otoliths
脑重体重比
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