2004 Volume 20 Pages 341-346
Yatsu Higata is one of the most significant remaining tidal flats in Japan. In recent years, Yatsu Higata has witnessed an extraordinary growth of Ulva sp. algae. This paper explores the possible origins of Ulva sp. in Tokyo Bay and describes field studies intended to explore the relationship between the Ulva sp. found in Yatsu Higata and in Tokyo Bay. As a result, the Ulva sp. flourishes in Yatsu Higata, due to the ready supply of nutrient runoff supplied by the Yatsu River. The movement of Ulva sp. from the flats to beyond may help reduce the pollutant load on Tokyo Bay while simultaneously helping to preserve the Yatsu Higata environment.
