A new machine can sort 100,000 fish per hour, using imaging technology, and then tag them. NMT's AutoFish system is designed to distinguish between natural salmon (which are protected) and hatchery salmon, which can be harvested, in the fisheries of the Pacific Northwest. More than 200 million fish need to be marked, via a tag on their adipose fin, every year. With the AutoFish, the fish enter the sorting device single file (how do they know to do that?) and get sorted with accuracy of up to 1 mm., with only 0.1 percent mortality and no anesthetic required. This sort of technology could revolutionize other repetitive tasks that involve rapid sorting — but it could also be a prototype for a machine that sorts and tags humans. Instructional video after the jump.