Ichthyological terms, not general ones.
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.
Used in ichthyology to describe dilations in the semicircular ear canals of some fishes.
Used in ichthyology to describe a vertical or diagonal marking, normally with well-defined margins, often located on the flank of a fish.
Used in 399 profiles
In ichthyological and aquarium literature typically refers to water rich in humic acids and poor in nutrients such as that associated with ancient peat swamps or parts of the Amazon river drainage, and thus differs from clearwater and whitewater. Fish species inhabiting such environments typically require similar conditions in captivity, especially if wild caught.
Used in 169 profiles
Arranged like a series of combs or the wire bristles on a wool card. In ichthyology used most commonly to describe the form and arrangement of teeth in certain species.
In ichthyology, any characteristic or its attributes used for recognising, describing, defining, or differentiating species, genera or higher taxa. Also used in phylogenetic analyses whereby ancestral (primitive) characters are termed plesiomorphic and derived (novel) characters apomorphic.
Used in 843 profiles
In ichthyological and aquarium literature typically refers to habitats containing transparent water with no material in suspension or staining by organic material, thus differing from whitewater or blackwater environments.
Used in 11 profiles
Used in ichthyology to refer to the number of eggs deposited in a single spawning event, particularly when some form of nest is used.
Used in 10 profiles
Used in ichthyology in reference to a written description of a new species, usually in the form of a scientifically-published paper though many have been also appeared in aquarium literature, particularly in the late twentieth century. Also referred to as 'type description' or 'original description'.
Used in 283 profiles
In ichthyology, the greatest distance between the margins of the eye.
Used in 38 profiles
Narrow strip of land connecting two larger areas, or a narrow strip of tissue connecting two larger body parts. In ichthyology often used in reference to the fleshy throat region of a fish which externally separates the two gill chambers.
Used in 26 profiles
In ichthyology, the counting of quantitative characters, such as the number of fins, fin rays or scales.
Used in 8 profiles
In ichthyology, scaleless or smooth skin.
Used in 72 profiles
In ichthyology, a bony or cartilaginous support for a fin ray or spine.
Used in 15 profiles
In ichthyology, a collection of fishes made from a particular locality or specified area.
Used in 8 profiles
In ichthyology, situated at or forming the end of, e.g., a 'terminal' mouth is located at the anterior-most part of the head.
Used in 25 profiles
See ich.
In ichthyological and aquarium literature typically refers to habitats with turbid water containing material in suspension and often rich in nutrients and dissolved ions, thus differing from clearwater or blackwater environments. Not to be confused with the term 'white water' which refers to turbulent water typically formed in rapids.
Used in 17 profiles
An organism which naturally dwells in an acidic environment.
Used in 1 profile
An antiseptic used to treat external fungal plus general bacterial and protozoan infections in ornamental fishes and disinfect fish eggs in aquaculture. Also known as Acriflavinium chloride, ie., the chemical compound from which it is formed.