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Overview

electrophorus

An early form of electrostatic generator. It consists of a flat dielectric plate and a metal plate with an insulated handle. The dielectric plate is charged by friction and the metal plate ...

electric fish

electric fish  

Fish that are capable of generating electric discharges. A number of species, belonging to different families, have this capability. Some (e.g. Electrophorus electricus (electric eel) and the ...
Electrophoridae

Electrophoridae  

; subclass Actinopterygii, order Cypriniformes)A monospecific family (Electrophorus electricus, electric eel) which has an elongate, eel-like body with a long anal fin confluent with the tail fin. ...
electric organ

electric organ  

An organ occurring on the body or tail of certain fish, such as the electric ray (Torpedo) and electric eel (Electrophorus electricus). It gives an electric shock when touched and is used either to ...
electrolectin

electrolectin   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
25 words

...a lectin of the galaptin family from Electrophorus electricus , and the name of a group of β ‐d‐galactoside‐binding lectins found in teleosts, amphibians, and...

electric organ

electric organ   Quick reference

A Dictionary of Biology (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Life Sciences
Length:
102 words

...electric organ An organ occurring on the body or tail of certain fish, such as the electric ray ( Torpedo ) and electric eel ( Electrophorus electricus ). It gives an electric shock when touched and is used either to stun prey or predators or, in some species, to maintain a weak electric field in the surrounding water that is used in navigation. The organ is composed of modified muscle cells ( electroplate or electroplax cells ), nervous stimulation of which greatly increases the potential difference across the cell. The electroplates are in series so a high...

Electrophoridae

Electrophoridae   Quick reference

A Dictionary of Zoology (5 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Science and technology, Life Sciences
Length:
89 words

... ( electric eel ) ( class Actinopterygii , order Gymnotiformes ) A monospecific family ( Electrophorus electricus , electric eel) which has an elongate, eel-like body with a long anal fin confluent with the tail fin. There are no scales, and the dorsal fin is absent. The long tail region contains the specialized muscles that form the electric organ, which is capable of producing about 600 volts per discharge. It is found only in the Amazon and Orinoco rivers of S. America. See also electric fish...

sodium channel

sodium channel   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
210 words

...integral proteins in the plasma membranes of excitable cells. They sense the membrane electric field, opening channels to permit an inward flux of sodium ions, thereby causing the membrane depolarization that is essential for the propagation of the action potential . The Electrophorus electroplax protein is a single chain of about 2000 amino‐acid residues and contains four homologous repeats, each of which has six putative transmembrane segments with extensive nonmembrane cytosolic and extracellular loops. It shares significant homology with other ion...

electric fish

electric fish   Quick reference

A Dictionary of Zoology (5 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Science and technology, Life Sciences
Length:
105 words

...fish Fish that are capable of generating electric discharges. A number of species, belonging to different families, have this capability. Some (e.g. Electrophorus electricus (electric eel) and the electric rays, such as the Atlantic Torpedo nobiliana ) can produce strong, stunning currents capable of immobilizing potential prey. The electric organs are derived from muscle tissue which is organized as a series of units, each one acting as a type of battery. The electric eel (which is related to the carp, not to the true eel) also uses the electrical...

Characins, Catfishes, Carps, and Allies

Characins, Catfishes, Carps, and Allies   Reference library

The Encyclopedia of Underwater Life

Reference type:
Subject Reference
Current Version:
2007
Subject:
Science and technology, Life Sciences
Length:
9,720 words
Illustration(s):
6

...fox (Epalzeorhynchous kallopterus) is a favored aquarium species; 10 The Razorback sucker (Xyrauchen texanus) has a very limited distribution in the western USA, and is classed as Endangered; 11 Ghost knifefish (Apteronotus albifrons); 12 Electric knifefish (Electrophorus electricus); 13 Milkfish (Chanos chanos) . The shark catfishes (Pangasiidae), numbering about 21 species, are possibly the most economically important of the Southeast Asian catfish families. In Thailand, Pangasius species have been pond-reared on fruit and vegetables...

Tarpons, Bonefishes, and Eels

Tarpons, Bonefishes, and Eels   Reference library

The Encyclopedia of Underwater Life

Reference type:
Subject Reference
Current Version:
2007
Subject:
Science and technology, Life Sciences
Length:
8,106 words
Illustration(s):
13

...testudineus ) and the totally unrelated Walking catfish ( Clarias batrachus ) of the family Clariidae. Both these types of fishes have pouches above the gill chamber, with linings expanded into convoluted shapes that increase the surface area. The Electric eel ( Electrophorus electricus ), which spends only a small part of its life out of water, can use its gills for aerial respiration, while the mudskippers ( Periophthalmus spp.), which spend a lot of their life out of water, can use their skin. Fishes on land have a problem in keeping cool,...

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