Ichthyological terms, not general ones.
Taxonomic group into which a family is divided and which contains one or more species characterised by a shared trait or traits. The generic name is used, either alone or followed by one or two specific epithets, to form a binomen or trinomen.
Used in 1,386 profiles
Each of two or more synonyms referring to nominal taxa with the same name-bearing type, or, in the cases of family-group and genus-group taxa, referring to nominal taxa with name-bearing types whose own names are themselves objectively synonymous.
Can be used to refer to any taxonomic group, the characteristics of which are used for defining related, higher or lower ranking groups. For example, the type of a nominal species is a specimen (type specimen), the type of a nominal genus is the nominal species (type species), and the type of a nominal family is the nominal genus (type genus).
Used in 783 profiles
A salt or ester of nitrous acid. Produced in aquaria via metabolisation of ammonia by nitrifying bacteria of the genus Nitrosomonas, and toxic to fishes if present in sufficient concentrations, but in a mature system is further converted into less-harmful nitrates by other bacteria of the genus Nitrospira.
Used in 1 profile
A genus of rod-shaped, gram-negative bacteria found in fresh and salt water, soil, and sewage. Various species affect fishes while others are pathogenic to amphibians, reptiles, and higher animals including humans.
Member of the copepod crustacean genus Lernaea. Adult females are parasitic on freshwater fishes.
A commonly-occurring genus of fish louse.
Commonly known as brine shrimp; a genus of phyllopod crustacean inhabiting salt lakes and brines. Cultivated as food for aquarium fishes and available live, frozen or freeze-dried. Its newly-hatched nauplii are also a popular food for fish fry.
Used in 1,159 profiles
Genus of isopod crustaceans in the family Asellidae. Contains the well-known 'water louse', Asellus aquaticus.
Used in 8 profiles
Genus of Gram-positive, mostly rod-shaped, bacteria including both free-living and pathogenic species.
A slender, whiskerlike, external process on the jaw or other part of the head of certain fishes used for touch and taste. Also used to refer to European members of the cyprinid genus Barbus.
Used in 319 profiles
Leaf of the deciduous tree genus Fagus. Dried and used in aquaria to simulate certain natural conditions, especially those typical of blackwater habitats.
Used in 5 profiles
The two part name of a species used in zoological nomenclature comprising generic (for the genus) and specific (for the species) names which form the full scientific name when combined, e.g. Carassius auratus.
The scientific system of naming an organism using two terms, the first representing the genus and the second the species. Also referred to as 'scientific name' or, somewhat inaccurately, 'Latin name'.
Coding system used to organise and refer to unidentified catfishes, though not necessarily undescribed or distinct species, of the genus Corydoras. Works in tandem with the similar CW number system. The system was invented by German aquarist Hans-Georg Evers and first appeared in the magazine 'DATZ' but is now in popular use worldwide.
Used in 67 profiles
Genus of unicellular, ciliated protozoa; some species are parasites of the skin and gills in freshwater fishes.
An organism belonging to the same genus as another.
Used in 697 profiles
Belonging to the same genus.
Used in 13 profiles
Disease of freshwater fishes caused by species of parasitic flagellate protozoa from the genus Ichthyobodo and more accurately referred to as ichthyobodiosis. It attacks the gills, fins and skin with symptoms including an increase body mucus secretion giving rise to the vernacular term 'skin slime disease'. Can be treated using proprietary products but frequently fatal otherwise.
Coding system used to organise and refer to unidentified catfishes, though not necessarily undescribed or distinct species, of the genus Corydoras. Works in tandem with the similar C number system. The system was invented by Ian A. M. Fuller in reference to his website 'Corydoras World' but is now in popular use worldwide.
Used in 65 profiles