Material in a mechanical or biological filter trapping suspended particles or providing a suitable surface for colonisation by beneficial organisms.
Glossary: filter medium
Glossary: fimbria
Thread, fringelike, or filamentous projection.
Glossary: fimbriae
Plural of fimbria.
Glossary: fimbriate
Possessing a fringed edge, usually consisting of fimbriae.
Glossary: fin
Membranous appendage supported by cartilage or bony rays. Used for locomotion, steering, and balance by fishes and some other aquatic organisms.
Glossary: fin rot
See Columnaris.
Glossary: fin-spine
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.
Glossary: fishery
Specified area or region in which fish are caught or collected; place where fishes are reared.
Glossary: fitness
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.
Glossary: flagellae
Plural of flagellum.
Glossary: flagellate
Of, relating to, or possessing a flagellum or flagellae.
Glossary: flagellum
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.
Glossary: flank
The side of an animal's body.
Glossary: flare
To expand or open outwards; to spread.
Responsive design
it is a complete malfunctioning horror on iphone and ipad.
10th Nov 2024
Major Changes in New World Cichlid Taxonomy
Reclassification of Genera: Several genera have been reclassified or merged. For example, the genus Cichlasoma has been split into multiple genera, an...
6th Nov 2024
Aphyosemion rectogoense
Many thanks cyprin, the image has now been removed.
31st Oct 2024
Product reviewers wanted
Hello! Very much interested in writing for you, please include me in the info. Thank you for the opportunity!
6th Sep 2020
Product reviewers wanted
I would be interested in reviewing products. Before retiring I was a technical writer and managed a Quality Management Program.
30th Aug 2020