Hunt, trap, catch, or gather wild animals or aquatic animals and plants. May use nets, traps, or other equipment. May haul catch onto ship or other vessel.
Compute positions and plot courses on charts to navigate vessels, using instruments such as compasses, sextants, and charts.
Harvest marine life for human or animal consumption, using diving or dredging equipment, traps, barges, rods, reels, or tackle.
Participate in animal damage control, wildlife management, disease control, and research activities.
Select, bait, and set traps, and lay poison along trails, according to species, size, habits, and environs of birds or animals and reasons for trapping them.
Track animals by checking for signs such as droppings or destruction of vegetation.