Material in a mechanical or biological filter trapping suspended particles or providing a suitable surface for colonisation by beneficial organisms.
Glossary: filter medium
Thread, fringelike, or filamentous projection.
Plural of fimbria.
Possessing a fringed edge, usually consisting of fimbriae.
Membranous appendage supported by cartilage or bony rays. Used for locomotion, steering, and balance by fishes and some other aquatic organisms.
Glossary: fin rot
Unsegmented and unbranched, bony structure supporting the fins in teleosts. Usually hard, rigid and pointed and may have a smooth or serrated edge. Not laterally-paired like rays, and in some species modified to form a protective structure.
Glossary: first order stream
A stream that has no permanent tributaries, often very short.
Glossary: first reviser
The first author to cite different names published on the same date and select one of them to take precedence over the other(s).
Glossary: fish bag
Bag made of plastic or other material. Used for transporting ornamental fishes.
Glossary: fish box
Box used for transporting and storing live fishes. Often made of polystyrene.
Glossary: fish tank
Container used to display live fishes; aquarium.
Specified area or region in which fish are caught or collected; place where fishes are reared.
In biology, Darwinian fitness or simply fitness of a biological trait describes how successful an organism has been at passing on its genes. The more likely that an individual is able to survive and live longer to reproduce, the higher is the fitness of that individual.
Plural of flagellum.
Of, relating to, or possessing a flagellum or flagellae.
Slender, thread or whip-like appendage. Used as an organ of locomotion by some unicellular organisms.
Glossary: flake food
Commercially-produced, dried, artificially manufactured food for fishes maintained in aquaria or ponds. Usually comprises a combination of macro nutrients, trace elements and vitamins and may contain additional colour-enhancing, medicative or vegetable additives.
The side of an animal's body.
To expand or open outwards; to spread.