The aim of the present study was to determine whether large sporophytes originating from Nabeta Bay would turn into small sporophytes with short stipes when transplanted to Nakagi Bay.

The aim of the present study was to determine whether large sporophytes originating from Nabeta Bay would turn into small sporophytes with short stipes when transplanted to Nakagi Bay.

The aim of this study was to determine whether short stipe sporophytes of E. cava growing in warm waters in southern Japan become long stipe sporophytes after transplantation to a locality with lower temperature conditions for 2 years. The growth pattern of E. cava was also studied by monitoring the transplanted sporophytes.