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.
Fall spawning fish
Fall spawning fish are a group of fish that breed in the fall - whitefish, many salmonids, etc.Fall ..
Fat content of fish
Fish fat content is the amount of fat contained in the body of fish. Determination of fish fatness i..
Fauna
From Latin Fauna - goddess of forests and fields, patroness of animal herds.Fauna is a historically ..
Fecundity
Fecundity - the ability to produce offspring and compensate for natural loss. It is expressed by the..
Fertile individual
Latin fertilis, "fertile, fertile."A fertile individual is a mature individual capable of producing ..
Fertility
Fertility is the property of a population to increase its number by reproduction. A distinction is m..
Filling with fish
Stocking is a method of economic activity providing for regular release of young fish for feeding in..
Fins
The fins are organs of fish movement and regulation of body position in space. The skeleton of the f..
Fish adaptation
Fish adaptation is an adaptation that ensures their existence in changed environmental conditions. I..
Fish behavior
Fish behavior is a complex of active actions provided by a combination of unconditional reflex activ..
Fish biolocation
Biolocation (from Greek βίος - life and Latin locatio - position) is the ability of animals to deter..
Fish body length
Measurement of fish is the determination of the size of individual fish, different parts of their an..
Fish body shape
The shape of a fish's body - the external appearance resulting from adaptation to a particular way o..
Fish colony
Latin colonia.Fish colony - temporary protective groupings of fish, predominantly of the same sex, f..
Fish feeding
Fish feeding is a period of intensive feeding after spawning (pike, yaz, perch, roach, etc.) or befo..