Dictionary of Ichthyology
This dictionary of ichthyology contains specialist terms used in the teaching of undergraduate students. The terms are arranged alphabetically for ease of reference.
In addition to ichthyology, terms from hydrobiology, zoology, anatomy, fish farming and other related disciplines are included.
Where terms have different interpretations, we have assigned the most common interpretation in our view.
This dictionary is constantly being added to and modified.
If you do not agree with the above interpretation of the Terms, please explain your understanding in the comments to these Terms.
We invite you to participate in the development of a modern ichthyological vocabulary.
We will consider any criticism and take it into account when describing dictionary terms.
Donka
Donkey is a fishing tackle for predatory and peaceful fish from the bottom. Donkeys are structurally..
Doppelganger species
The general term for all cases in which two (or more) biological species are found that do not diffe..
Dorsal fin
The dorsal fin is found in such groups of animals asJawless: found in lampreys and most extinct bony..
Dorsoventral flat
From the Latin dorsum - back and venter - stomach.Dorsoventral flat - type of body shape in fish fla..
Dragnet
A trawl used for fishing in ponds and other small bodies of water. It is a 10 to 30 m long and 1 to ..
Drift nets
Drift nets are sea smooth nets, 15 to 75 m long and 10-15 m high, connected (tied up) in one order o..
Dying pond
Dying pond (lake) - a body of water in which freezing events occur continuously (annually) or sporad..
Dystrophy in fish
The process of changing the chemical composition of cells due to metabolic disorders in the body. It..
Echinodermata
Echinodermata are an independent and very peculiar type of the animal world. According to the plan o..
Economic zone
Economic zone - established as a result of delimitation of waters and the bottom of the World Ocean ..
Egg
An egg is the egg cell of a fish. They differ in shape and color. They can be spherical (absolute ma..
Ejaculate
From the Latin ejaculatus, ejected.Ejaculate is the sperm that the male releases into the water to f..
Electrical organs
Electric organs are modified muscle tissue that can generate electric current. They are usually foun..
Eleginus nawaga
Eleginus nawaga is a marine fish of the cod family. The antennae are not large. Three dorsal fins, t..
Eleotridae
Eleotridae is a family of fishes of the order Perciformes. Includes more than 40 genera, more than 3..