<；P>；PROBLEM TO BE SOLVED: To provide a continuous stage culture cage in which pockets used as shellfish-culturing chambers are disposed at many stages and whose pocket openings can easily be closed or opened. <；P>；SOLUTION: The continuous stage culture cage produced by superposing nets and then binding three sides excluding upper openings to form many pockets 10 used as culture chambers in the vertical has pocket-pressing lids 11 openably and closably attached for closing the openings 7a of the pockets 10 to each beam 3. The pocket-pressing lid 11 is formed by stretching a net 13 on a U-shaped frame 12. The frame 12 is turnably attached to the beam 3 including a metal frame coated with a vinylic polymer. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
