Ichthyological terms, not general ones.
Vernacular term for any small, shrimp-like, marine crustacean of the order Euphausiacea. Represent an important, sometimes principal, proportion of the diet of many marine fishes and mammals. Available as food for ornamental fishes, usually in frozen form.
Used in 14 profiles
Selective inbreeding in order to maintain or favour desired traits in organisms. Common in the ornamental fish hobby and industry.
Term introduced by Charles Darwin referring to the nonrandom mechanism of evolution by which certain biological traits become either more or less common in a population due to differential, environmentally-influenced reproduction. Better-adapted individuals tend to produce more offspring, thus the population evolves, and this process can result in populations that gradually become specialised to inhabit particular ecological niches and can eventually result in the emergence of new species.
In biology, able to exist or thrive only under a certain set of environmental conditions, e.g., an obligate peat swamp-dweller.
Used in 148 profiles
The observable physical and biochemical traits of an organism, such as its behaviour, external morphology, colour pattern, phenology, etc. Influenced by both genetic and environmental factors.
Used in 7 profiles
Ability of an organism to change its phenotype in response to environmental change.
Used in 2 profiles
Intentional, normally controlled breeding of organisms favouring desirable or improved traits. Common in the ornamental fish hobby and industry.
Used in 4 profiles
A fish species spawning in multiple bursts within a given period, typically in response to some environmental stimulus or cue, e.g., rainfall.
Able to live only under a certain, narrow range of environmental conditions.
Used in 19 profiles
In ornamental fishes, a group of related individuals developed via selective breeding and sharing common features not present in other strains of the same species.
Used in 44 profiles
Chemical or biological agent, environmental condition, external stimulus or event that causes stress to an organism.
Used in 1 profile
Spawning behaviour in which all individuals of a species spawn in unison, normally as a result of some environmental trigger or cue.
Having a yellow or golden colour; a desirable and selectively-bred mutation in certain ornamental fishes but can also occur naturally.
Used in 5 profiles
Of a yellow or golden colour; a desirable and selectively-bred mutation in certain ornamental fishes but can also occur naturally.