1. Environmental chemistry of rivers and lakes, Part VII. Fractionation by calculation of suspended particulate matter in Lake Biwa into three types of particles of different origins

   • M. Nagai
   • M. Sugiyama
   • T. Hori

   RESEARCH PAPER Pages: 147 - 155

2. Climatic changes during the past 1300 years as deduced from the sediments of Lake Nakatsuna, central Japan

   • D. P. Adhikari
   • F. Kumon

   RESEARCH PAPER Pages: 157 - 168

3. Evaluation of formation potential of trihalomethanes and mutagens due to chlorination of river water along the Kizu River in the Yodo River system in Japan

   • S. Sanukida
   • T. Nobukawa
   • S. Nakachi

   RESEARCH PAPER Pages: 169 - 177

4. Effects of seston on ultraviolet attenuation in Lake Biwa

   • W. F. Vincent
   • M. Kumagai
   • K. Hayakawa

   RESEARCH PAPER Pages: 179 - 184

5. Water current velocity as an environmental factor regulating the distribution of amphipod species in Gamo lagoon, Japan

   • S. Aikins
   • E. Kikuchi

   RESEARCH PAPER Pages: 185 - 191

6. Distribution of CH₄ in the north basin of Lake Biwa and tributary rivers

   • Y. Yamada
   • T. Koitabashi
   • E. Wada

   NOTE Pages: 193 - 197

7. Seasonality in nutrient concentrations and stable isotope ratios of Halophila ovalis growing on the intertidal flat of SW Thailand

   • M. Yamamuro
   • Y. Umezawa
   • I. Koike

   NOTE Pages: 199 - 205

8. Microbial decomposition of dissolved organic matter in a hypertrophic pond

   • K. Nishii
   • S. Nakano
   • Z. Kawabata

   NOTE Pages: 207 - 212

9. Identification of cultured and uncultured picocyanobacteria from a mesotrophic freshwater lake based on the partial sequences of 16S rDNA

   • T. Katano
   • M. Fukui
   • Y. Watanabe

   NOTE Pages: 213 - 218

10. Three species of the genus Ilyocryptus (Anomopoda, Branchiopoda) occurring in Japan

    • S. Tanaka

    NOTE Pages: 219 - 222

11. Eutrophication of reservoirs in South Korea

    • B. Kim
    • J.-H. Park
    • K. Choi

    ASIA/OCEANIA REPORT Pages: 223 - 229