returns species names given FishBase's SpecCodes
species_names(codes, server = NULL)
a vector of speccodes (e.g. column from a table)
can be set to either "fishbase" or "sealifebase" to switch between databases. NOTE: it is usually easier to leave this as NULL and set the source instead using the environmental variable `FISHBASE_API`, e.g. `Sys.setenv(FISHBASE_API="sealifebase")`.
A character vector of species names for the SpecCodes