1. Dissolved helium distribution in deep groundwaters from the Tono area, central Japan: a tool for tracing groundwater flow in fractured granite

   • Noritoshi Morikawa

   RESEARCH PAPER Pages: 61 - 69

2. Trophic coupling of a testate amoeba and Microcystis species in a hypertrophic pond

   • Yuichiro Nishibe
   • Pathmalal M. Manage
   • Shin-ichi Nakano

   RESEARCH PAPER Pages: 71 - 76

3. Spatial distribution and seasonal changes of pesticides in Lake Biwa, Japan

   • Miki Sudo
   • Takeshi Kawachi
   • Takao Kunimatsu

   RESEARCH PAPER Pages: 77 - 86

4. Voltammetric determination of dissolved iron and its speciation in freshwater

   • Takashi Nagai
   • Akio Imai
   • Takehiko Fukushima

   RESEARCH PAPER Pages: 87 - 94

5. Phylogenic status of a purple sulfur bacterium and its bloom in Lake Kaiike

   • Michiro Matsuyama

   RESEARCH PAPER Pages: 95 - 101

6. Numerical study of a thermally induced gyre system in Lake Biwa

   • Kazunori Akitomo
   • Masao Kurogi
   • Michio Kumagai

   RESEARCH PAPER Pages: 103 - 114

7. Seasonal changes in silicon content of diatoms estimated from the ratio of particulate silicon to diatom volume under silicon sufficiency in diatom-rich Lake Barato

   • Keishi Takano
   • Seiki Igarashi
   • Shuji Hino

   NOTE Pages: 115 - 120

8. Direct and indirect impacts of predation by fish on the zooplankton community: an experimental analysis using tanks

   • Kwang-Hyeon Chang
   • Takamaru Nagata
   • Takayuki Hanazato

   NOTE Pages: 121 - 124

9. P. E. O’Sullivan, and C. S. Reynolds, Editors

   • Robert G. Wetzel

   BOOK REVIEW Pages: 125 - 126

10. Erratum to: Abstracts from the Japanese Journal of Limnology

    • Yuuji Onda
    • Shinji Ohsawa
    • Tohru Yabe

    Erratum 22 September 2004 Pages: 127 - 127