Affiliation: | Nagasaki Prefectural Institute of Fisheries, Nagasaki 851-2213;, Japan Sea-Farming Association, Goto station, Nagasaki 853-0501;, Laboratory of Agriculture, Department of Fisheries, Faculty of Agriculture, Kinki University, Nara 631-8505;and Department of Global Agricultural Sciences, Graduate school of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan |