Business Week features a Nisqually family of geoduck harvesters:

The tribal police are tied up alongside the Ichiban, a broad, aluminum dive boat that bucks against its anchor line 300 yards offshore. Only one of the Ichiban’s two dive lines is running at the moment, trailing off the stern into the granite waters of South Puget Sound. The Ichiban’s captain, Craig Parker, stares intently as the tribal officer finishes his paperwork—capping off an inspection of the Ichiban’s safety procedures and a proficiency test to certify that all members of Parker’s crew are qualified to do their strange work 40 to 50 feet below the surface.