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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.

分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

条鰭類 > Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes)
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335).   More on author: Linnaeus.

環境 / 気候 / 範囲 生態学

; 新鮮な水 底生の漂泳性; pH range: 6.0 - 7.5; dH range: ? - 15; potamodromous (Ref. 51243).   Subtropical; 22°C - 28°C (Ref. 1672), preferred ?

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

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

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 19.4, range 25 - ? cm
Max length : 76.0 cm TL オス/雌雄の選別がない; (Ref. 79585); 最大公表体重: 1.2 kg (Ref. 79585)

生物学     用語集 (例 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 | 繁殖 | 放精 | | 生産力 | 幼生

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).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Campos-da-Paz, Ricardo | 協力者

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)

IUCNのレッドリストの状況は (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 興味がない; 水族館・水槽: 商業
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