Being suppression manner of the motor function of the live fish which decreases the motor function by

摘要

An idealistic preservation method of aquatic animals capable of reliably suppressing motion functions of large quantities of living fish, etc., and transporting fish while keeping freshness and quality for a long time during transportation so that large quantities of living fish, etc., can be transported in a small space. Fish (10) is scooped with a landing net from a tank and is laid down on a table. An operator preferably wears wet gloves lest his body temperature damages fish. While being held down by one hand, fish (10) is pierced from inside an operculum (21) through the spinal cord (1) by a tool (100). The piercing position is near the medulla oblongata (11) and is extremely effective for lowering the motion function. If the medulla oblongata (11) itself is damaged, fish (10) will die completely. Therefore, caution should be taken not to damage it.