Dictionary of ichthyology. 2009.
avoidance behaviour — Type of activity, exhibited by animals exposed to adverse stimuli, in which the tendency to flee or to act defensively is stronger than the tendency to attack. Vision is the sense that most often produces avoidance behaviour (e.g., small birds… … Universalium
avoidance — 1) the probability that a fish or fish school will escape capture by swimming out of the path of a ship or trawl, away from or alongside a gill net, or avoid retention by a hook or trap. May be expressed as a function of size or age (avoidance… … Dictionary of ichthyology
Fish diseases and parasites — This gizzard shad has VHS, a deadly infectious disease which causes bleeding. It afflicts over 50 species of freshwater and marine fish in the northern hemisphere.[1] Like humans and other animals, fish suffer from diseases and parasites. Fish… … Wikipedia
fish guide — 1) any device used to direct fish to a certain place for capture or avoidance of danger, e.g. lights, bubbles, sound, electricity 2) a professional fishing guide who directs the angler to spots where trophy fish can be found and advises on tackle … Dictionary of ichthyology
fish-guide — 1) any device used to direct fish to a certain place for capture or avoidance of danger, e.g. lights, bubbles, sound, electricity 2) a professional fishing guide who directs the angler to spots where trophy fish can be found and advises on tackle … Dictionary of ichthyology
avoidance curve — the relationship between a fish size or age and its probability of being retained by fishing gear after coming in contact with it … Dictionary of ichthyology
avoidance response — the actions of a fish to avoid concentrations of chemicals or other factors. Active or passive movement occurs … Dictionary of ichthyology
avoidance threshold — the lowest concentration of a substance that causes a fish to move actively away from it … Dictionary of ichthyology
avoidance — Synonyms and related words: Encratism, Friday, Lenten fare, Pythagoreanism, Pythagorism, Rechabitism, Shakerism, Spartan fare, Stoicism, abstainment, abstemiousness, abstention, abstinence, asceticism, banyan day, celibacy, chastity, continence,… … Moby Thesaurus
Electric fish — Electric eels are fish capable of generating an electrical field. An electric fish is a fish that can generate electric fields. It is said to be electrogenic; a fish that has the ability to detect electric fields is said to be electroreceptive.… … Wikipedia
