Fishionary

A blog about fish words!

By Abigail Lynch

A blog about fish words!

taxonomy

Gill rakers

December 1, 2017 by abby

While gill rakers have no role in gas exchange, the predominant function of gills,  they do perform an equally important function for filter-feeding fish – food acquisition.  These bony projections serve as a sieve to trap food particles.  They vary greatly in length and number and these characteristic differences have evolved with different feeding strategies … [Read more…]

Posted in: G Tagged: filter feeding, gills, taxonomy

Meristics and Morphometrics

October 17, 2014 by abby Leave a Comment

A meristic is a countable trait, such as number of gill rakers or number of dorsal fin spines.  Morphometrics examines the size and shape using a measurable trait, such as standard length or wet weight, which can be gauged as a length, mass, angle or ratio of other measurements.  Meristic traits and morphometrics are often used … [Read more…]

Posted in: M Tagged: classification, dichotomous key, meristics, morphometrics, taxonomy

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