Several shots from different angles at a fish hatchery of men squeezing female salmon to take out eggs, mixing eggs with a liquid (water?) in a measurement cylinder. Close views of men at work, of men deposing eggs in a water pool. Close views of calm water in pool disturbed by fish coming rapidly at surface catching food. MS of a man walking around pool throwing in food. HAMSs ZOOM IN and OUT. CSs of tagged smelts in pool. Several interior shots of two men and a woman surrounded by tanks doing research in the field of genetics, taking complex measurements of tiny salmon including shots of numbers changing on weight balance and of tiny salmon swimming in tank, of a man working with sheet filled up with numbers for the analysis by computer.