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.
Clupeonella
Clupeonella is a genus of fish in the family Clupeidae. The body length is 9 - 15 cm. Abdomen with w..
Coastal fish
Coastal fish - live in the coastal zone of a water body (perch, pike, crucian carp, tench, etc.). Th..
Cobitidae
A family of fishes in the family Cypriniformes. Freshwater, benthic, sedentary fish up to 30 cm long..
Coho salmon
An anadromous species of fish in the family Salmoidae.Coho salmon (Oncorhynchus kisutch) is a passag..
Cold-loving fish
Cold-loving fish - a group of fish that live in reservoirs with cold oxygenated water (whitefish, ch..
Comephoridae
Comephoridae is a family of Scorpaeniformes. These fish have no pelvic fins, but their pectoral fins..
Common bleak
The common bleak (Alburnus alburnus) is a freshwater fish of the carp family. It is a small fish - u..
Common nase
Common nase (Chondrostoma nasus) is a freshwater fish of the carp family. The lower jaw is covered w..
Common roach
Common roach (Rutilus rutilus) is a freshwater fish of fresh and brackish waters of Europe and Siber..
Consumers
From the Latin consume, to consume.Consumers are heterotrophic organisms of the second and subsequen..
Consumption index
Consumption index is the total mass of recovered eaten organisms from residues found in the digestiv..
Contagious diseases of fish
Classification of fish diseases is most convenient according to the etiological principle, i.e., dep..
Copepoda
Division Crustacean. Class Crustacean. Body length 0.1 mm to 3 cm. The antennae are long, serve as s..
Coral fish
Coral fishes - fishes of the families Chaetodontidae, Pomacentridae, Scaridae, Acanthuridae and othe..
Coregonidae
Soregonidae is a family of fishes of the Salmoniformes. Body coloration is uniform, silvery, no spot..