109:
44:
84:
65:
401:, which hunts the same way, it possesses an unusually large brain, which is believed to help it interpret the electrical signals. It makes its tail negatively charged with respect to its head. This produces a symmetrical
382:
is elongated, running along the back of the fish towards the blunt, finless tail, and is the main source of propulsion. It grows up to 1.6 m (5.2 ft) in length and 19 kg (42 lb) in weight.
405:
around its body, provided it keeps its back straight; it does this by swimming using its fins. Nearby objects distort this field, and it can sense the distortion on its skin.
992:
1031:
1085:
411:
females lay their eggs in floating nests up to 1 m (3.3 ft) across. The adults continue to guard the young after hatching. The sperm cells lack a
393:
in 1950, when he noticed that it could swim equally well forwards or backwards, clearly relying on a sense other than vision. This opened up research into
1100:
966:
1005:
702:
389:
is nocturnal and has a poor vision. Instead, it navigates and hunts smaller fish using a weak electric field, as demonstrated by the zoologist
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Greenwood, P. H.; Wilson, M. V. (1998). Paxton, J. R.; Eschmeyer, W. N. (eds.).
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swims with its back straight, detecting prey by the way they distort the
971:
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322:
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Continuous
Electrical Signals from the Tail of a Fish,
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739:
718:
582:The Mode of Operation of the Electric Receptors in
321:. It is found in swamps, lakes and rivers in the
468:10.2305/IUCN.UK.2020-2.RLTS.T181688A134949091.en
443:; Getahun, A.; Moelants, T.; Vreven, E. (2020).
658:. Fish & Fisheries. Springer. p. 143.
593:37:4 (1960), pp. 801–811. (with Ken E. Machin)
577:, 35 (1958), pp. 451–486. (with Ken E. Machin)
696:
434:
432:
8:
862:
703:
689:
681:
82:
63:
42:
31:
466:
261: Presence Uncertain & Introduced
656:Developmental Biology of Teleost Fishes
621:(2006). "A new sense for muddy water".
428:
510:
508:
506:
366:has a long and slender body, with no
7:
565:The Mechanism of Object Location in
307:, and the only species in the genus
1086:IUCN Red List least concern species
726:Electroreception and electrogenesis
454:IUCN Red List of Threatened Species
395:electroreception and electrogenesis
25:
560:, 167, 4240 (1951), pp. 201–202.
1101:Monotypic ray-finned fish genera
107:
624:Journal of Experimental Biology
590:Journal of Experimental Biology
574:Journal of Experimental Biology
485:; Pauly, Daniel, eds. (2014).
1:
633:10.1242/jeb.10.1242/jeb.02012
1106:Taxa named by Georges Cuvier
606:, 208, pp 50–59, March 1963.
598:Electric Location by Fishes
56:electric field it generates
1122:
786:(S. American knifefishes)
731:Jamming avoidance response
439:Lalèyè, P.; Azeroual, A.;
397:in fish. Like the related
356:
27:Genus of ray-finned fishes
841:History of bioelectricity
627:. 2006 209 (2): 200–201.
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245:
230:
223:
104:Scientific classification
102:
80:
71:
62:
50:
41:
34:
654:Kunz, Yvette W. (2004).
273:– commonly known as the
461:: e.T181688A134949091.
353:Description and biology
255: Extant (resident)
517:Encyclopedia of Fishes
755:Ampullae of Lorenzini
619:Alexander, R. McNeill
357:Further information:
1096:Fish of Lake Turkana
906:Gymnarchus niloticus
876:Gymnarchus niloticus
814:(electric catfishes)
584:Gymnarchus Niloticus
567:Gymnarchus Niloticus
550:Gymnarchus Niloticus
489:Gymnarchus niloticus
447:Gymnarchus niloticus
270:Gymnarchus niloticus
234:Gymnarchus niloticus
36:Gymnarchus niloticus
780:(African knifefish)
603:Scientific American
291:freshwater rat-tail
74:Conservation status
1091:Osteoglossiformes
1073:
1072:
1045:Open Tree of Life
868:Taxon identifiers
859:
858:
751:Electroreceptors
665:978-1-4020-2996-7
441:Entsua-Mensah, M.
415:, moving like an
319:Osteoglossiformes
317:within the order
301:African knifefish
266:
265:
216:G. niloticus
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161:Osteoglossiformes
97:
16:(Redirected from
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851:Magnetoreception
802:(elephantfishes)
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569:and Similar Fish
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359:Electroreception
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820:(electric rays)
818:Torpediniformes
794:(electric eels)
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313:and the family
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250:Aba IUCN range
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747:Electric organ
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544:Lissmann, Hans
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523:. p. 84.
521:Academic Press
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483:Froese, Rainer
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519:. San Diego:
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225:Binomial name
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846:Lateral line
826:(stargazers)
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778:Gymnarchidae
760:Knollenorgan
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409:G. niloticus
408:
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399:elephantfish
387:G. niloticus
386:
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364:G. niloticus
363:
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315:Gymnarchidae
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240:Cuvier, 1829
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181:Gymnarchidae
180:
51:
35:
29:
980:iNaturalist
900:Wikispecies
1080:Categories
806:Rajiformes
800:Mormyridae
719:Physiology
423:References
380:dorsal fin
310:Gymnarchus
196:Gymnarchus
167:Suborder:
52:Gymnarchus
419:instead.
413:flagellum
376:anal fins
287:frankfish
210:Species:
127:Kingdom:
121:Eukaryota
998:10448648
954:FishBase
885:Wikidata
808:(skates)
641:16391343
496:FishBase
349:basins.
303:– is an
177:Family:
141:Chordata
137:Phylum:
131:Animalia
117:Domain:
94:IUCN 3.1
1063:1022677
972:2402253
891:Q283274
834:Related
740:Anatomy
600:", in:
587:", in:
571:", in:
554:", in:
343:Senegal
327:Turkana
282:aba aba
191:Genus:
157:Order:
147:Class:
92: (
18:Aba aba
1050:115490
1024:181688
1011:161927
985:101881
946:988111
920:211171
771:Groups
662:
639:
557:Nature
527:
417:amoeba
378:. The
372:pelvic
368:caudal
347:Gambia
345:, and
259:
253:
204:, 1829
202:Cuvier
1058:WoRMS
1037:42648
993:IRMNG
933:3HPF4
374:, or
339:Volta
335:Niger
299:, or
1032:NCBI
1019:IUCN
1006:ITIS
967:GBIF
959:4519
915:BOLD
660:ISBN
637:PMID
525:ISBN
459:2020
331:Chad
323:Nile
941:EoL
928:CoL
629:doi
552:Cuv
546:. "
463:doi
276:aba
1082::
1060::
1047::
1034::
1021::
1008::
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982::
969::
956::
943::
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917::
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635:.
505:^
493:.
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431:^
370:,
341:,
337:,
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329:,
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293:,
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285:,
279:,
58:.
704:e
697:t
690:v
668:.
643:.
631::
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580:"
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471:.
465::
449:"
445:"
96:)
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
