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Fish that can generate electric fields
An electric fish is any fish that can generate electric fields, whether to sense things around them, for defence, or to stun prey. Most fish able to produce
Electric_fish
Organ in electric fish
In biology, the electric organ is an organ that an electric fish uses to create an electric field. Electric organs are derived from modified muscle or
Electric_organ_(fish)
Genus of fishes in South America
The electric eels are a genus, Electrophorus, of neotropical freshwater fish from South America in the family Gymnotidae, of which they are the only members
Electric_eel
Order of cartilaginous fishes
The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, composing the order Torpediniformes /tɔːrˈpɛdɪnɪfɔːrmiːz/
Electric_ray
Order of bony fishes
nocturnal fish have long bodies and swim using undulations of their elongated anal fin. They are electric fish, are capable of producing electric fields
Gymnotiformes
Biological electricity-related abilities
generate electric fields. Both are used to locate prey; stronger electric discharges are used in a few groups of fishes, such as the electric eel, to stun
Electroreception and electrogenesis
Electroreception_and_electrogenesis
Gill-bearing non-tetrapod aquatic vertebrates
Strongly electric fish like the electric eel can in addition use their electric organs to generate shocks powerful enough to stun their prey. Most fish are
Fish
Family of ray-finned fishes
bioelectrogenesis. They are unique among electric fish in not possessing electroreceptors, meaning that they do not use an electric sense to locate prey. Stargazers
Stargazer_(fish)
Species of fish
to find a mate. Peters's elephantnose fish live to about 6–10 years. The elephant nose fish is weakly electric, meaning that it can detect moving prey
Peters's_elephantnose_fish
Behavior of some weakly electric fishes
weakly electric fish. It occurs when two electric fish with wave discharges meet – if their discharge frequencies are very similar, each fish shifts its
Jamming_avoidance_response
List of common names used to refer to fish
Eeltail catfish Elasmobranch Electric catfish Electric eel Electric knifefish Electric ray Elephant fish Elephantnose fish Elver Ember parrotfish Emerald
List_of_fish_by_common_name
Family of fishes
other fish, incapacitating their prey with electric discharges, but others are generalist bottom foragers, feeding on things like invertebrates, fish eggs
Electric_catfish
Concept in physiology
stability. They have a role in the perception of self and nonself electric fields in electric fish. They also underlie the phenomenon of tickling. A motor signal
Efference_copy
Phenomena related to electric charge
shocks from electric fish. Ancient Egyptian texts dating from 2750 BCE described them as the "protectors" of all other fish. Electric fish were again reported
Electricity
Fish that can leave water for periods of time
Amphibious fish are fish that are able to leave water for extended periods of time. About 11 distantly related genera of fish are considered amphibious
Amphibious_fish
Species of cartilaginous fish
feeds almost exclusively on small bony fishes, which it ambushes from the bottom and subdues with strong electric bursts. It defends itself by turning towards
Marbled_electric_ray
Species of fish
Black ghost knifefish are nocturnal. They are a weakly electric fish which use an electric organ and receptors distributed over the length of their
Black_ghost_knifefish
German neurophysiologist (1938–1994)
understood behavioral patterns in a vertebrate, Eigenmannia. This weakly electric fish and the neural basis for its jamming avoidance response behavioral process
Walter_Heiligenberg
South American electric fish
Electrophorus electricus is the best-known species of electric eel. It is a South American electric fish. Until the discovery of two additional species in
Electrophorus_electricus
Bluffing imitation of a species with strong defenses
bat predators, while some weakly electric fish appear to mimic the electrolocation signals of strongly electric fish, constituting electrical mimicry
Batesian_mimicry
Family of ray-finned fishes
elephantfish (more properly freshwater elephantfish), are a family of weakly electric fish in the order Osteoglossiformes native to Africa. It is by far the largest
Mormyridae
American serial killer and rapist (1870–1936)
Fish was apprehended on December 13, 1934, and put on trial for the kidnapping and murder of Grace Budd. He was convicted and executed by electric chair
Albert_Fish
Nervous system stimuli filtration process
dominates. Weakly electric fish generate electric fields for the purpose of object location and communication. They have a specialized electric sense made up
Feature detection (nervous system)
Feature_detection_(nervous_system)
Species of cartilaginous fish
Pacific electric ray can generate up to 45 volts of electricity for the purposes of subduing prey or self-defense. It feeds mainly on bony fishes, ambushing
Pacific_electric_ray
Genus of ray-finned fishes
Gymnarchus niloticus – the aba, aba aba or frankfish – is an electric fish, living at the bottoms of rivers and lakes. It is the only species in the genus
Gymnarchus
Independent evolution of similar features
weak electric fields to help them detect prey. Convergence of weakly electric fishes A gymnotiform electrolocation waveform A gymnotiform electric fish of
Convergent_evolution
Division or infraclass of fishes
as electric eels, can produce powerful electric currents, strong enough to stun prey. Other fish, such as knifefish, generate and sense weak electric fields
Teleost
Raising fish commercially in enclosures
Fish farming or pisciculture involves commercial breeding of fish, most often for food, in fish tanks or artificial enclosures such as fish ponds. It
Fish_farming
Division of cartilaginous fishes
cartilaginous fishes, commonly known as rays; this taxon is sometimes considered as the superorder Batoidea, but the 5th edition of Fishes of the World
Batomorphi
Fish that have the ability to produce toxins
deliver electric shocks as well as venom. It is a delicacy in some cultures (cooking destroys the venom), and can be found for sale in some fish markets
Venomous_fish
Fish found in aquatic tropical environments
Tropical fish are fish found in aquatic tropical environments around the world. Fishkeepers often keep tropical fish in freshwater and saltwater aquariums
Tropical_fish
Fauna found in deep-sea areas
Deep-sea fish are fish that live in the darkness below the sunlit surface waters, that is below the epipelagic or photic zone of the sea. The lanternfish
Deep-sea_fish
American actress and singer
Song)" and was played in the season two episode "Does Kyle Dream of Electric Fish?". A non-acoustic version of this song is available on the Kyle XY soundtrack
April_Matson
In biology, any group of fish that stay together for social reasons
Shoaling and schooling In biology, any group of fish that stay together for social reasons are shoaling, and if the group is swimming in the same direction
Shoaling_and_schooling
Species of fish endemic to part of Lake Malawi
fishbase.ca. FishBase. Retrieved 1 July 2025. "Electric Yellow – Labidochromis caeruleus". www.aquariumfishparadise.com.au. Rob — Aquarium Fish Paradise.
Labidochromis_caeruleus
Movement of fishes from one part of a water body to another on a regular basis
Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging
Fish_migration
Type of animal communication
be exerted in low visibility conditions. In electric fish (Sternarchorhynchus), the frequency of electric organ discharge signals the dominance status
Dominance_signal
Fish in the pelagic zone of ocean waters
Pelagic fish live in the pelagic zone of ocean or lake waters—being neither close to the bottom nor near the shore—in contrast with demersal fish that live
Pelagic_fish
Order of fishes
African knifefish) and the Mormyridae are weakly electric fish able to sense their prey using electric fields. The mooneyes (Hiodontidae) are often classified
Osteoglossiformes
Family of marine fish that can make powerful, self-propelled leaps out of water
Exocoetidae are a family of saltwater ray-finned fish in the order Beloniformes, known colloquially as flying fish or flying cod, with about 64 species in seven
Flying_fish
Origin and diversification of fish through geologic time
Fish began evolving about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and
Evolution_of_fish
Organ that allows fish to breathe underwater
Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills on both sides of the pharynx
Fish_gill
Study of the form or morphology of fishes
Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts
Fish_anatomy
A Knollenorgan is an electroreceptor in the skin of weakly electric fish of the family Mormyridae (Elephantfish) from Africa. The structure was first
Knollenorgan
Fish species with the ability to travel over land for extended period of time
walking fish, or ambulatory fish, is a fish that is able to travel over land for extended periods of time. Some other modes of non-standard fish locomotion
Walking_fish
Young fish
Juvenile fish Fish go through various life stages between fertilization and adulthood. The life of fish start as spawned eggs which hatch into immotile
Juvenile_fish
Family of fishes
electric organs are the electric ray and the skates. Unlike many other electrogenic fishes, skates are unique in having paired electric organs which run longitudinally
Skate_(fish)
Fish species with oils in their tissues and coelom
Oily fish, also known as blue fish, greasy fish or fatty fish, are species of fish with oil (fats) in soft tissues and in the coelomic cavity around the
Oily_fish
Species of cartilaginous fish
The onefin electric ray or Cape numbfish (Narke capensis) is a common but little-known species of electric ray in the family Narkidae, native to South
Onefin_electric_ray
Type of sensory system
Examples include echolocation of bats and electrosensory detection of electric fish. Contact active sensory systems use physical contact between stimuli
Active_sensory_systems
Family of fishes
fish have small eyes, and some species may exhibit sexual dimorphism in their snout shape and jaws. Like all gymnotiformes, Apteronotids are electric
Ghost_knifefish
Bones in a fish protecting the gills
interoperculum posteriorly. The suboperculum is rectangular in shape in most bony fish and is located ventral to the preoperculum and operculum components. It is
Operculum_(fish)
Species of fish
species, as with all Gymnotiformes, is an electric fish that has the capability to generate weak electric charges, and then measure the disturbance in
Banded_knifefish
Family of knifefishes in the order Gymnotiformes
family of fishes in the order Gymnotiformes known as the bluntnose knifefish. They may also be called grass or leaf knifefishes. These electric fish are not
Hypopomidae
Most fish possess highly developed sense organs. Nearly all fish that are primarily active during daylight have colour vision that is at least as good
Sensory_systems_in_fish
Species of cartilaginous fish
also known as the coffin ray or Australian numbfish, is a species of electric ray endemic to Australia, where it is common in inshore waters shallower
Coffin_ray
Scientific study of how the component parts of fish function together in the living fish
Fish physiology is the scientific study of how the component parts of fish function together in the living fish. It can be contrasted with fish anatomy
Fish_physiology
American psychedelic rock band
Alec (2013). Electric Music for the Mind and Body (CD booklet). Country Joe and the Fish. Ace Vanguard Masters. Unterberger, Richie. "Electric Music for
Country_Joe_and_the_Fish
Species of cartilaginous fish
can deliver a strong electric shock of up to 200 volts. It is a solitary, nocturnal ambush predator that feeds mainly on bony fishes and crustaceans. This
Common_torpedo
Reproductive physiology of fishes
Fish reproductive organs include testes and ovaries. In most species, gonads are paired organs of similar size, which can be partially or totally fused
Fish_reproduction
Fish that live and feed on or near the bottom of seas or lakes
Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone). They occupy the sea floors and lake
Demersal_fish
Species of fish
standing water. Active at night, feeding mainly on fish stunned by electric shocks. The electric organ, capable of discharging 300–400 V, is derived
Malapterurus_electricus
Species of cartilaginous fish
The ocellated electric ray or bullseye electric ray (Diplobatis ommata) is a species of electric ray in the family Narcinidae, native to the shallow inshore
Ocellated_electric_ray
Ways that fish move around
many small fish use their pectoral fins for swimming as well as for steering and dynamic lift. Fish in the order Gymnotiformes possess electric organs along
Fish_locomotion
Hard skeletal covering of fish
A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which
Fish_scale
Genus of fishes
crustaceans, small fish and other small animals, but may also take plant material. Being electric fish, they generate weak electric fields used for navigation
Gymnotus
Species of fish
basin of Brazil and Peru. Like other gymnotiform knifefish, it is an electric fish. It exhibits pronounced sexual dimorphism in which mature males develop
Compsaraia_samueli
Species of fish
The Colombian electric ray (Diplobatis colombiensis) is a species of fish in the family Narcinidae endemic to Colombia. Its natural habitat is open seas
Colombian_electric_ray
German zoologist
from electric fish. Sachs studied the electric eel's seeming immunity to its own shocks, and to electricity applied to it. He found that electric eel muscles
Carl_Sachs
Hypercarnivorous fish that sometimes actively prey upon other fish
Predatory fish are hypercarnivorous fish that actively prey upon other fish or aquatic animals, with examples including shark, billfish, barracuda, alligator
Predatory_fish
Genus of ray-finned fishes
fish in the family Mormyridae. They are weakly electric, enabling them to navigate, to find their prey, and to communicate with other electric fish.
Mormyrus
Bony skin-covered spines or rays protruding from the body of a fish
the body of fish that interact with water to generate thrust and lift, which help the fish swim. Apart from the tail or caudal fin, fish fins have no
Fish_fin
Species of cartilaginous fish
it, while delivering strong electric shocks. This strategy allows the sluggish ray to capture relatively fast-moving fish. Once subdued, the prey is maneuvered
Atlantic_torpedo
people were aware of shocks from electric fish. Ancient Egyptian texts dating from 2750 BCE referred to these fish as the "Thunderer of the Nile", and
History of electrical engineering
History_of_electrical_engineering
Fish that mostly live in freshwater
Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes, ponds and inland wetlands, where
Freshwater_fish
Fish which can produce hallucinogenic effects when eaten
Several species of fish are claimed to produce hallucinogenic effects when consumed, a condition known as ichthyoallyeinotoxism. For example, Sarpa salpa
Hallucinogenic_fish
Species of cartilaginous fish
Rainer; Pauly, Daniel (eds.). "Diplobatis picta". FishBase. May 2018 version. "Painted Electric Ray (Diplobatis picta)". iNaturalist. Retrieved 18 May
Painted_electric_ray
Species of fish
Petrocephalus boboto is a species of electric fish in the genus Petrocephalus. It is so far only known from the holotype collected from Congo River at
Petrocephalus_boboto
Species of electric eel
Electrophorus voltai, or Volta's electric eel, is a species of electric eel found in South America. It is the strongest known bioelectricity generator
Electrophorus_voltai
Several species of demersal fish with fins
Whitefish or white fish is a fisheries term for several species of demersal fish with fins, particularly Atlantic cod (Gadus morhua), whiting (Merluccius
Whitefish_(fisheries_term)
Species of fish
Like the rest of its genus, it is exclusively a freshwater fish. It generates a weak electric field used for both navigation and communication. It possesses
Gymnotus_tiquie
Fear of traditional and non traditional fish
Fear of fish or ichthyophobia ranges from cultural phenomena such as fear of eating fish, fear of touching raw fish, or fear of dead fish, up to irrational
Fear_of_fish
Species of fish
the size and electric signal intensity of males. Males take shelter alone while female fish group together within retreat sites. Electric organ discharges
Brown_ghost_knifefish
Fish that remove parasites and dead tissue from other species
Cleaner fish are fish that show a specialist feeding strategy by providing a service to other species, referred to as clients, by removing dead skin,
Cleaner_fish
Species of cartilaginous fish
The oval electric ray (Typhlonarke tarakea) is a little-known species of sleeper ray in the family Narkidae. It is endemic to New Zealand, where it is
Oval_electric_ray
Species of fish
Mormyridae family contains weakly electric fish, all of which have an electric discharge organ located near the tail. This electric discharge organ can be used
Marcusenius_macrolepidotus
Largest known fish species
Fish vary greatly in size. The extant whale shark and basking shark exceed all other fish by a considerable margin in weight and length. The extinct Otodus
List_of_largest_fish
Fish without functional eyes
A blind fish is a fish without functional eyes. Most blind fish species are found in dark habitats such as the deep ocean, deep river channels and underground
Blind_fish
The world's smallest fish depends on the measurement used. Based on minimum standard length at maturity the main contenders are Paedocypris progenetica
List_of_smallest_fish
Topics referred to by the same term
Overshoot Day, in humanity's consumption of resources Electric organ discharge, by electric fish End of data, a control character in telecommunications
EOD
1967 studio album by Country Joe and the Fish
Electric Music for the Mind and Body is the debut album by the American psychedelic rock band Country Joe and the Fish. Released in May 1967 on the Vanguard
Electric Music for the Mind and Body
Electric_Music_for_the_Mind_and_Body
pacemaker nucleus, is a group of nerve cells found in the bodies of weakly electric fish. It controls the function of electrocytes by regulating the frequency
Medullary_command_nucleus
Family of freshwater fishes
knifefishes are a family, the Gymnotidae, of ray-finned fishes belonging to the order Gymnotiformes. The fishes in this family are found only in fresh waters of
Naked-back_knifefish
would use only smaller fish, as a large fish may generate an electric shock from 300 to 400 volts. The Egyptians depicted the fish in their mural paintings
History_of_bioelectricity
Family of fishes
gymnotiform. These fish have a tone-like electric organ discharge (EOD) that occurs monophasically. Some of these species are aquarium fishes. There are 30
Glass_knifefish
Fish that prefer cooler water temperatures
The term coldwater fish can have different meanings in different contexts. In the context of fishkeeping, it refers to ornamental fish species that tolerate
Coldwater_fish
Species of fish
C.D.; William G. R. Crampton (2007). "Revision of The Deep-channel Electric Fish Genus Sternarchogiton (Gymnotiformes: Apteronotidae)". Copeia. 2007
Tenebrosternarchus
Sensory organs in some fish that detect electrical fields
electric fields. They form a network of mucus-filled pores in the skin of cartilaginous fish (sharks, rays, and chimaeras) and of basal bony fishes such
Ampullae_of_Lorenzini
Species of cartilaginous fish
The blind electric ray (Typhlonarke aysoni) is a little-known species of sleeper ray in the family Narkidae, endemic to New Zealand. It is found on the
Blind_electric_ray
Species of cartilaginous fish
sleeper ray". FishBase. Retrieved May 31, 2013. Compagno, L.J.V.; Heemstra, P.C. (2007). "Electrolux addisoni, a new genus and species of electric ray from
Japanese_sleeper_ray
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