Indian Journal of Science and Technology

Hiramatsu N.^*, Luo W.^*, Mizuta H.^*, Todo T.^*, Reading B.J.^**, Sullivan C.V.^** and Hara A.^*

^*Faculty of Fisheries, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido, 041-8611, Japan. Tel&Fax: +81- 138-40-8878; email:  [email protected]
^**Department of Biology, North Carolina State University, Raleigh, North Carolina 27695-7617, USA