Ecological study of Salicornia europaea, Lake-side Akkeshi, Prov. Kushiro Hokkaido

Abstract

Akkeshi has been well known as the place where Salicornia europaea grows in Japan. The present research was undertaken in last autumn. Salicornia europaea is found on the salt marshes along the lake-side where half salt-water are flooded at high tide. Its communities are found in the natural or the seminatural conditions near the water-ways. which were made in oder to moor boats. The component of its communities are shown in the tables 1-4 and figures 1-3. Salicornia europaea grows between 5 and 20 m from the line of water's edge. Sometimes it is found in isoletion, sometimes in small groups, and sometimes forming the narrow belt on the sand bar. One of the largest communities is about 20 m long and 10 m wide. Salicornia europaea is often associated by Aster tripolium or Triglochin maritimum. The line-transects were made along the water's edge of Lake Akkeshi and also in several places which meet the line of water's edge at right angle.