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.
Sexual system
Sexual system - a set of organs that ensure the production, development and excr..
Shelf
The shelf is an underwater extension of the mainland (mainland shoal) at depths of up to 200 metres...
Shell glands
In the region anterior to the kidneys, the oviducts form small expansions, the shell glands, whose s..
Shoreline
Shoreline - the boundary between land and water around a body of water (sea, lake, reservoir).Define..
Shrimp
Shrimp (Caridea) - suborder Decapoda. The abdomen is muscular, longer than the thorax. Many have cla..
Siltation of the reservoir
Siltation of a water body is the process of accumulation of mineral, plant and animal residues on th..
Siluridae
Siluridae is a family of fishes of the order Siluriformes. The body is naked. Anal fin is long, dors..
Silver carp
Silver carp (Carassius gibelio) is a freshwater fish of the carp family. It inhabits freshwater bodi..
Sirton
From the Greek syrtos - washed, applied and on - being.Sirton is a collection of organisms carried b..
Skeleton
Skeleton - a set of hard and cartilaginous formations in the body of fish, serving as a support for ..
Skin of fish
Skin of fish - delimit the body of fish from the external environment. Perform the functions of defe..
Skin respiration
Skin respiration - is carried out by diffusion through the body coverings of fish. It is characteris..
Sludge
Silt is a fine-grained sediment, mainly of organic origin, deposited in seas, lakes, reservoirs and ..
Smelt
Smelt (Osmeridae) is a genus of fish in the smelt family. The European smelt (Osmerus eperlanus) inh..
Smoltification
Mortality is the property of a population to reduce its number due to the death of individuals; it i..