Horny, bony external plate or modified scale found in some fishes.
Glossary: secondary pathogen
Pathogenic infection developing as the result of initial infection by some other pathogen.
Glossary: segmented ray
Fin ray divided into short sections.
Type of net designed to hang vertically in the water with the ends being manually drawn together to catch fishes, and which usually has weights at the lower edge and floats at the top; to fish with such a net.
Glossary: selective breeding
Intentional, normally controlled breeding of organisms favouring desirable or improved traits. Common in the ornamental fish hobby and industry.
Glossary: senior homonym
Of two or more homonyms: the earlier established or if established simultaneously the one taking precedence.
Glossary: senior synonym
Of two or more synonyms: the earlier established or if established simultaneously the one taking precedence.
Glossary: sensory canal
See lateral line.
Latin word meaning 'in the sense of'. Often used to refer to the usage of a name by an author in a sense different from that of the original author, another previous author or the current author.
Glossary: sensu lato
Latin term meaning "in the wide sense". Used in conjunction with a taxonomic name to indicate that the name is used more inclusively than sanctioned by current practice
Glossary: sensu stricto
Latin term meaning "in the strict sense". Used in conjunction with a taxonomic name to indicate exclusion of other names typically associated with it, or when referring to a taxon only in terms of its subordinate nominotypical taxon.
Glossary: sequential key
Identification key comprising a series of steps.
Glossary: serial spawner
A fish species spawning in multiple bursts within a given period, typically in response to some environmental stimulus or cue, e.g., rainfall.
A small, sharp notch or organ shaped like the tooth of a saw.
Plural of serra. Usually used in reference to a saw-like edge or margin.
Having a notched or sawlike edge or margin.
Permanently attached to a surface; immobile.
A rigid hair, bristle, or bristlelike process or appendage.
Having, resembling or consisting of bristles.