1. Acidification of freshwaters by red soil in a subtropical silicate rock area, Okinawa, Japan

   • Said Ali Vuai
   • Maki Ishiki
   • Akira Tokuyama

   Research Paper Pages: 63 - 71

2. Causation of reversal simultaneity for diatom biomass and density of Phormidium tenue during the warm season in eutrophic Lake Barato, Japan

   • Keishi Takano
   • Seiki Igarashi
   • Shuji Hino

   Research Paper Pages: 73 - 78

3. Biological productivity of Lake Towada, a north temperate, oligotrophic, kokanee fishery lake

   • Wataru Makino
   • Hajime Mikami
   • Noriko Takamura

   Research Paper Pages: 79 - 90

4. Sources of dissolved methane in Lake Biwa

   • Jun Murase
   • Yuji Sakai
   • Mitsuru Sakamoto

   Research Paper Pages: 91 - 99

5. Fluctuation of the zooplankton community in Lake Biwa during the 20th century: a paleolimnological analysis

   • Narumi Tsugeki
   • Hirotaka Oda
   • Jotaro Urabe

   Research Paper Pages: 101 - 107

6. Relations of intraspecific variations in fecundity, clutch size, and oviposition frequency to the body size in three species of stoneflies, Sweltsa sp., Isoperla aizuana, and Stavsolus japonicus

   • Mayumi Yoshimura

   Note Pages: 109 - 112

7. Photosynthetic potential of phytoplankton in the deep water of Lake Baikal, Russia

   • Motomi Genkai-Kato
   • Kentaro Nozaki
   • Masami Nakanishi

   Asia/Oceania Report Pages: 113 - 117