Who is a "Fisherman"

The term fisherman has now been perceived in more ways than what the lexicon would interpret. From the innocuous poor rod wielding person to a multimillionaire entrepreneur all in a way come under the gamut of the meaning conveyed by the term "fisher". The arguments targeting this issue always end up inconclusive. But they always throw up defining assumptions and purposes which brings some finiteness to the whole exercise. It would always be helpful if we could initiate healthy debate on who all should be labelled as a fisherman if the information seeker happens to be a state/ government which has welfare motive as its primary focus.