Genus of Gram-positive, mostly rod-shaped, bacteria including both free-living and pathogenic species.
Glossary: Bacillus
Glossary: backwater
Quiet, often stagnant body of water connected to a larger body but held back in some way, e.g. by a naturally-occurring dam or tide.
Glossary: bacteria
Large group of prokaryotic microorganisms representing one of the three domains of living organisms. Present in the majority of Earth's habitats as well as organic matter and the bodies of live animals. Most are harmless, some beneficial and others pathogenic.
Glossary: bactericide
An agent with the ability to destroy bacteria.
Glossary: ball valve
Type of shutoff valve comprising a free-floating ball with a cylindrical-shaped hole in it that sits in a concave-shaped depression over an opening.
Glossary: bar
Used in ichthyology to describe a vertical or diagonal marking, normally with well-defined margins, often located on the flank of a fish.
Glossary: barb
In zoology, used to refer to a small spine projecting from a larger one; alternative name for spinule and, sometimes, barbel. Also used to refer to cyprinid fishes of the genera Barbus, Puntius, Systomus and related species.
Glossary: barbel
A slender, whiskerlike, external process on the jaw or other part of the head of certain fishes used for touch and taste. Also used to refer to European members of the cyprinid genus Barbus.
Glossary: basal
At, towards or constituting a base; primitive. Opposite of derived. In cladistics, used to in reference to a clade within which other clades are nested.
Glossary: base
The bottom or lowest part of something. Biology. The point of attachment of a part or organ, e.g., a fin. Chemistry. A substance that can accept protons or donate pairs of electrons. The chemical opposite of an acid. Bases have a pH greater than 7.0 and a solution containing one or more bases is often referred […]
Glossary: basibranchial
Of, being, or relating to a median ventral cartilage or bony element located at the ventral point of a branchial arch, behind the tongue if the latter is present.
Glossary: basibranchial teeth
Teeth on the median ventral plate (base of the tongue) overlying the basibranchial bones between the gill arches in some fishes.
Glossary: basic
Of, relating to, forming, or being a base.
Glossary: basicaudal
At or on the base of the caudal fin.
Glossary: basicity
Being a base, or the extent to which a substance is basic.
Glossary: basin
Used to denote a region drained by a single river system, e.g., the Amazon basin.
Glossary: basipterygium
Basal bone or cartilage located at the base of the paired fins in some fishes.
Glossary: batch fecundity
The number of eggs released by a serial spawner during a single spawning event.
Glossary: batch spawner
A fish species which deposite eggs on more than a single occasion throughout a particular spawning season rather than within a short period.
Glossary: batesian mimicry
A form of protective mimicry whereby a harmless species closely resembles an unpalatable or harmful species thus reducing the potential of predation.
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
Product reviewers wanted
I'm interested and can write reviews from the perspective of someone new to the hobby. I'm only 3-4 months in, but hopefully I can help someone that's...
23rd Aug 2020
Product reviewers wanted
I’m interested in doing this if there is still availability, it sounds like fun! Thanks
19th Aug 2020
Barbodes semifasciolatus – Golden Barb* (Barbus sachsii, Puntius schuberti)
I simply had a question (please forgive if this is not allowed, I read the FAQ but I was not sure). I was wondering if there is any evidence of offsp...
12th Aug 2020