Highly efficient silica sink in monomictic Lake Biwa in Japan Naoshige Goto, Hisayuki Azumi, Tetsuji Akatsuka, Masaki Kihira, Masakazu Ishikawa, Kaori Anbutsu and Osamu Mitamura Ann. Limnol. - Int. J. Lim., 49 2 (2013) 139-147 Published online: 18 June 2013 DOI: 10.1051/limn/2013045