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Glossary: adventitius roots

February 15th, 2012 — 2:05pm

Roots formed from shoot tissues arising from any part of a plant except another (parent) root, e.g., from stems or leaves.

Glossary: aerate

February 24th, 2012 — 12:14am

To supply with additional air or expose to air circulation.

Glossary: aeration

February 24th, 2012 — 12:09am

The process of supplying with additional air or exposing to air circulation.

Glossary: aerobic

February 15th, 2012 — 2:05pm

Living or occurring only in the presence of oxygen.

Glossary: Aeromonas

February 15th, 2012 — 2:05pm

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.

Glossary: aestivate

February 15th, 2012 — 2:05pm

To pass a hot period of the year in a dormant condition, as seen in African lungfishes for example.

Glossary: aff.

February 15th, 2012 — 2:05pm

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.

Glossary: affinis

February 15th, 2012 — 2:05pm

See aff..

Glossary: affluent

February 15th, 2012 — 2:05pm

A tributary stream or river.

Glossary: African Great Lakes

February 23rd, 2012 — 3:22pm

Series of water bodies mostly located in the East African rift including some of the oldest and deepest in the world, specifically lakes Victoria, Tanganyika, Malawi, Turkana, Albert, Kivu and Edward.

Glossary: agonistic behaviour

February 15th, 2012 — 2:05pm

Social interactions related to fighting. A broader term than 'aggressive behaviour' as it also includes threats, displays, retreats, placation, and conciliation.

Glossary: air pump

February 24th, 2012 — 12:13am

Device used to pump air into an aquarium for aeration or driving of air-powered filters.

Glossary: air stone

February 24th, 2012 — 12:31am

Processed piece of porous stone, glass, limewood, ceramic or synthetic material that is attached to the end of a length of airline and used to diffuse air into an aquarium in order to increase aeration. Available in a large range of shapes and sizes.

Glossary: airline

February 15th, 2012 — 2:05pm

Plastic or silicon tubing used to connect an air pump to a filter, air stone, etc..

Glossary: airline clamp

February 24th, 2012 — 4:03pm

Small, plastic, adjustable clamp used to regulate the flow of air within a length of airline.

Glossary: albino

February 15th, 2012 — 2:05pm

A person or animal lacking or deficient in normal pigmentation due to an absence of melanin. Albino animals typically possess red eyes, unlike leucistic forms which typically have normally-coloured eyes.

Glossary: algae

February 15th, 2012 — 2:05pm

A large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms and including seaweeds, diatoms, and Spirogyra. They’re photosynthetic, like plants, and the majority are aquatic.

Glossary: algae crab

February 15th, 2012 — 2:05pm

Loose term used to describe any type of crab useful in an aquarium because it eats algae and/or diatoms. In marine aquaria this would include Sally Lightfoot, Emerald and various species of hermit crab. In freshwater the micro-crab Limnopilos naiyanetri fills the same role.

Glossary: algae shrimp

February 15th, 2012 — 2:05pm

Somewhat misleading vernacular name for the freshwater shrimp Caridina multidentata Stimpson 1860, a popular addition to freshwater aquaria due to its reputation for consuming algae, though in reality it is unable to survive on a diet of algae alone. Formerly referred to as C. japonica De Man 1892 (that name is now regarded as a […]

Glossary: algal bloom

February 15th, 2012 — 2:05pm

A population explosion of unicellular algae, normally resulting from an increase or excess of available nutrients.