Originally posted by reefjitsu
I was always taught that you should know scientific as well as all the common vernacular names. A funny thing about common and scientific names, 75% of the time they just state the most obvious feature of the fish, the common name using plain words and the scientific using Latin.
We were taught both, "accepted" common names, and the latin (and you had better know the class, order, family in addition to genus and species). We actually had a little book of accepted common names for the game and food fish of the Southeast. Most species had three or four common names, a few have waaaay more since some fish have different names as juveniles and adults.
As far as the Scientfic names changing, the actual genus and species doesn't always change, sometimes the just change the family or create a new family. There is a concrete set of rules set byu the "holy order of taxonimists"
that prevent changes to genus species classifications under most circumstances. I don't remember much of it as I hated taxonomy like most of my fellow students at the time, even though I appreciated why we use it.
With pretty much 4 accepted way to define the species concept, fish classification will forever be changing as we research more and more into them.
Mike