1. Changes in biomass and spatial distribution of Elodea nuttallii (Planch.) St. John, an invasive submerged plant, in oligomesotrophic Lake Kizaki from 1999 to 2002

   • Masao Nagasaka

   RESEARCH PAPER Pages: 129 - 139

2. A new species of the genus Stempellinella (Diptera: Chironomidae) from Hiroshima, Japan

   • Eiso Inoue
   • Koichiro Kawai
   • Hiromichi Imabayashi

   RESEARCH PAPER Pages: 141 - 147

3. Biotic and abiotic methane releases from Lake Biwa sediment slurry

   • Jianguo Dan
   • Takahiro Kumai
   • Jun Murase

   RESEARCH PAPER Pages: 149 - 154

4. Fluorescence spectroscopic characterization of dissolved organic matter in the waters of Lake Fuxian and adjacent rivers in Yunnan, China

   • Kazuhide Hayakawa
   • Mitsuru Sakamoto
   • Zixiong Zhang

   RESEARCH PAPER Pages: 155 - 163

5. Distribution of dissolved organic carbon in lakes of different trophic types

   • Yuko Sugiyama
   • Aya Anegawa
   • Masahito Sugiyama

   NOTE Pages: 165 - 176

6. Distribution of polychlorinated biphenyls (PCBs), lead, and cadmium in Manko Tidal Flat, Okinawa

   • Yutaka Tashiro
   • Kaneshi Takahira
   • Akira Tokuyama

   NOTE Pages: 177 - 183

7. Vertical distributions of stable isotopic compositions and bacteriochlorophyll homologues in suspended particulate matter in saline meromictic Lake Abashiri

   • Yoji Nakajima
   • Hirotoshi Shimizu
   • Naohiko Ohkouchi

   NOTE Pages: 185 - 189

8. Chet Van Duzer

   • Robert G. Wetzel

   BOOK REVIEW Pages: 191 - 191