| 摘要 |
PROBLEM TO BE SOLVED: To provide a land rearing device of tuna, increasing a survival rate of juvenile fish and immature fish of tuna.SOLUTION: A land rearing device of tuna as a land rearing device which includes an immature fish rearing tank 2 for rearing juvenile fish of tuna until they become immature fish is such that the immature fish tank 2 has a first pipe arrangement 3 for receiving juvenile fish completed in rearing in a juvenile fish rearing tank 1 for rearing juvenile fish, in the immature fish tank 2 by water flow from the juvenile fish rearing tank 1. The water flow is preferably water flow formed under natural flow based on a difference of elevation between the juvenile fish rearing tank 1 and the immature fish tank 2.SELECTED DRAWING: Figure 1 |
