Ichthyological terms, not general ones.
Type of seasonally-inundated floodplain forest in the Amazon region. The term is normally used for those forests flooded by whitewater rivers but is sometimes used to refer to blackwater environments for which the more traditional term is igapó.
Used in 9 profiles
Either of the pair of fins, also known as pelvic fins, attached to the pelvic girdle in fishes that help control the direction of movement. Correspond to the hind legs in higher vertebrates and vary in position depending on taxon. Sometimes absent entirely.
Used in 74 profiles
Vernacular nerm used to describe the post-spawning behaviour of cupping or clamping of the ventral fins in order to transport fertilised eggs. Exhibited by females of some Corydoras species, for example.
Having the appearance or form of a villus or series of villi.
Used in 1 profile
Vaguely-defined, generic term for a variably-sized, natural, usually freshwater, watercourse, that empties into an ocean, sea, lake, or another river.
Used in 1,266 profiles
Generic term for any lake formed in a rift valley, but often used in specific reference to a group located in the East African rift, particularly those lying in its western and southern sections, i.e., the African Great Lakes. In the aquarium hobby the meaning of the term is typically restricted even further to include just lakes Malawi, Tanganyika, and Victoria, the latter of which is not in fact a rift lake and is located in a shallow depression between the eastern and western branches of the main rift. These three lakes are famous for the high number of endemic fish species inhabiting them, especially members of the family Cichlidae.
Combining capacity of an atom or ion determined by the number of electrons that it will lose, add, or share when it reacts with other atoms; the bond-forming capacity of a given atom or radical; a numeric value designated to represent this capacity.
A form or version that differs in some respect from other forms of the same thing or deviates from a standard.
Used in 77 profiles
Containing vessels that carry or circulate fluids, especially blood.
Used in 198 profiles
Poisonous fluid secreted by various animals, including some fishes.
Used in 26 profiles
Positioned or orientated between the ventral and lateral surfaces.
Used in 4 profiles
The backbone; the spine; in fishes, the vertebrae running from skull to caudal fin which protect the spinal cord and haemal artery as well as providing attachment for certain muscles used for swimming.
Separation or division of a population by a geographic barrier, such as a mountain or body of water, resulting in evolution into new varieties or species.
Used in reference to any of several closely related species, variants, etc., each of which exists in a distinct geographical area but are assumed to have originated from a single population that became dispersed by geological events; of or relating to such an event.
Plural of villus.
Used in 12 profiles
Slender, abundant, crowded teeth resembling villi or the bristles of a brush present in some fishes.
Used in 4 profiles
In biology, a minute, hairlike process present on certain membranes, such as the mucous membrane in the small intestine of many vertebrates. Typically has a sensory or absorptive function.
Of or relating to the viscera.
Sticky, adhesive; thick; glutinous. Having viscosity.
See viscid.