Results for “aff.”

aff.

Abbreviation of the word 'affinis', meaning related but not identical to. Used in the fields of systematics and taxonomy when referring to undescribed specimens or populations that resemble, but are clearly different to, a described species.

affinis

See aff..

Used in 20 profiles

affluent

A tributary stream or river.

Used in 58 profiles

Aeromonas

A genus of rod-shaped, gram-negative bacteria found in fresh and salt water, soil, and sewage. Various species affect fishes while others are pathogenic to amphibians, reptiles, and higher animals including humans.

allelopathy

A biological phenomenon by which an organism produces one or more biochemicals that affect the growth, survival, and reproduction of others. Typical in certain plants, algae, bacteria, coral, and fungi.

cutaneous

Of, relating to, or affecting the skin.

head and lateral line erosion

Severe physical condition relatively common to certain fishes in captivity and also known as hole-in-the-head. Sometimes attributed to protozoan parasites of the genus Hexamita or an autoimmune disorder though these theories remains unconfirmed. Certainly associated with and exacerbated by poor water quality and/or nutrition, however. Initially manifests itself as small lesions, normally on the head of an affected individual, but may also extend along the lateral line and into the unpaired fins. If left unchecked these lesions can develop into larger, whitish pits and the condition may prove fatal. Often abbreviated to HLLE and similar to, but not analagous with, neuromastic pitting. Does not appear to occur in nature.

Used in 35 profiles

hydrophilic

Having an affinity for water.

hydrophobic

Lacking an affinity for water.

leucism

Condition in which all types of skin pigment are reduced due to defects in pigment cell differentiation with the normal result a partially (often referred to as 'pied' or 'piebald'), or more rarely, completely white animal. Differs from albinism, which is caused by a lack of melanin only, in several ways, with one of the most apparent being that albino animals typically have red eyes whereas leucism does not normally affect eye colour. Pronounced, and sometimes spelled, leukism.

neurotoxin

A toxin affecting the nervous system.

Used in 12 profiles

pheromone

Chemical secreted by an organism affecting the behaviour or physiology of other individuals of the same species which may function as an alarm or sexual stimulant, for example.

Used in 2 profiles