01 / Coral on the Breakwaters (離岸堤のサンゴ)
On breakwaters built to calm the waves,coral forms colonies.
To break waves and restore the beach, offshore breakwaters were placed along the Nahari Port coast between 1975 and 1993. According to the Japan Society of Civil Engineers' journal, coral began settling on them around 1975, and a 2003 survey found 73 species, 22 of them recorded in Tosa Bay for the first time.
- Coral settling on the breakwaters from around 1975 (JSCE journal, 2003)
- 73 species in the 2003 survey, 22 new to Tosa Bay
- 9 species at their northern limit on the Pacific coast of the mainland (2003)