| 摘要 |
The present invention relates to a water tank for managing eel broodstork which facilitates the management of eel broodstork by allowing a user to choose between fresh water and sea water as water for farming and change to the condition of the water which is set through a period of brackish water, when the ratio of the fresh water and sea water is increased and decreased gradually and reciprocally, if the condition of the water by the fresh water and sea water is set. The water tank according to an embodiment of the present invention lets the sea water and fresh water as the water for farming be increased and decreased reciprocally depending on the setting condition of the water for farming and the condition of the brackish water be set during the period when the fresh water and sea water are increased and decreased, thereby being able to control the osmotic pressure for the salt concentration for the eel broodstork as a migratory fish. |
