The original Salmon Cannon™ was developed a decade ago, specifically, for live fish transfer operations for aquaculture, hatchery operations, and studies where the fish are already being handled but where transfer is difficult, dangerous, or inefficient.  The Salmon Cannon comes in two sizes, and is made of light weight materials for easy handling by one person.  Loaded by hand the gentle but efficient transport assures fewer injuries to both fish and personnel during transfer operations.  Sold separately here but requires Migrator Tubes, and ancillary equipment for operations.