dredger:
(pronunciation: the letters ‘g’ and ‘d’ together are said with a ‘j’ sound as in “jar”)

one of several ways of dredging for fish
a person who dredges something or for something using a dredge;
(according to Urban Dictionary and not to be used in formal situations at all) a person who has unnatural sexual activities,

a dredger dredging with a hand-held bazooka dredger
Hayden had worked as a dredger operating the old sand dredge for five years before he changed his job.
Dredging has become a more demanding maritime activity with the availability of modern easily-operated dredging machines and young qualified dredgers from Asian countries find good jobs.
Fishing dredgers are gradual losing jobs as environmental activists are making their protests stronger asking the governments to stop allowing dredging the water bodies with heavy dredging machines, which, the protesters point out, destroy the entire echo-system in those waters.

a dredger -- dredging machine
