Ichthyological terms, not general ones.
Naked name; a scientific name unavailable for use because it does not have a corresponding description, reference or indication. Can be made available if published in a fashion sufficient to meet the ICZN criteria of availability, in which case the name is attributed to the person making it available rather than the original author.
Used in 4 profiles
Rigid, dermal structure resembling a tooth or bristle found in certain fish taxa, notably many neotropical catfishes. Also known as a dermal tooth and has a structure comparable to that of an oral tooth, with dentine surrounding a central pulp cavity covered by a superficial layer of enamel or similar material. Often more pronounced or extensively-distributed in males than females.
Used in 34 profiles
Of, relating to, or contributing to the sense of smell.
Used in 3 profiles
Any salt or ester of phosphoric acid. The presence or addition of excessive phosphates in aquatic ecosystems can have significant ecological effects such as eutrophication, and they are one of the primary contributors to algal growth in aquaria if allowed to accumulate. Conversely, they may be actively added to heavily-planted set-ups in the form of liquid or other supplements in order to encourage plant growth.
A region that has remained unaltered by a climatic change event and provides an area where relict species are able to survive; in aquaria the term is used to describe an aquarium or other container maintained within a larger system, usually displayed alongside or beneath it, where certain organisms that would not survive in the main aquarium can be maintained.
Total geographic area drained by a river plus all its tributaries.
Used in 338 profiles
Strong; vigorous; sturdy. Often used to describe the general body form of a fish.
Used in 246 profiles
The ratio of males to females in a given population. Often used to describe the same ratio in a batch of captive-bred fishes.
Used in 5 profiles
Name often given to the Amazon River main channel from its confluence with the Rio Negro upstream to the border of Brazil and Peru. Often used interchangeably with 'Amazon' to describe this stretch.
Used in 31 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.