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.
Liver
The liver is a large digestive gland. Most fish have two-, three—lobed, carp - seven-lobed. It produ..
Lobster
Lobsters (Nephropidae) are a division of the suborder Reptantia of the order Decapoda. In appearance..
Lotidae
Lotidae is a family of fishes of the order Gadiformes. There are two dorsal fins. The second dorsal ..
Lower mouth
Lower mouth - the lower jaw is shorter than the upper jaw. The mouth is located on the lower side of..
Lymphatic system of fish
Lymphatic system of fish - does not have lymph glands and is represented by a number of paired and u..
Macrobenthos
Macrobenthos - organisms larger than 2 mm. These are higher crustaceans, echinoderms, polychaetes, l..
Macroplankton
From the Greek πλανκτόν - wandering, a set of organisms inhabiting the water column of continental a..
Mariculture
Mariculture – marine cultivation or aquaculture of organisms in tanks, pens, ponds or cages (onshore..
Marine fish
Marine fish are fish that live in the salt water of oceans, seas or salt lakes. There are about 11.6..
Marital changes
Reversible phenomena are associated with spawning and appear in the form of mating attire.A temporar..
Marlin
Marlin (Istiophoridae) is a family of fishes of the order Perciformes. 3 genera - Istiophorus, Makai..
Mating games
Behaviour of males before or during spawning.Mating games can be observed in fish during spawning, w..
Mating outfit of pisces
The change in the appearance of fish in the pre-spawning and spawning period is manifested in the ch..
Mating rash
Horny growths on the head and body of male carp, whitefish and salmonids during the spawning season...
Maximum depth
Maximum depth - vertical distance from the water surface in a river, lake, etc. to the bottom. Deter..