familySearch            A function to find all fish that are members of
                        a scientific Family
findSpecies             Returns the matching indices in the data given
                        a list of species names
fish.data               A cached copy of extracted FishBase data, 14
                        Febuary 2013.
fish_names              Return the scientific names, families, classes,
                        or orders of the input data
getDepth                Returns available depth range data
getEnviroClimateRange   get the Environment, Climate, and Range of a
                        species.
getIds                  get fishbase id numbers
getLengthWeight         get the length weight table
getMetabolism           get metabolism table (oxygen consumption).
getPictures             getPictures from the fishbase database
getQuantTraits          Returns all quantitative trait values found in
                        the morphology data
getRefs                 Returns the FishBase reference id numbers
                        matching a query.
getSize                 Returns available size data of specified type
                        (length, weight, or age)
getTrophicLevel         get trophic level
habitatSearch           A function to search for the occurances of any
                        keyword in habitat description
labridtree              An example phylogeny of labrid fish
loadCache               Load an updated cache
updateCache             Update the cached copy of fishbase data
which_fish              which_fish is the the generic search function
                        for fishbase a variety of description types
