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♦ ¹Feeding habits of the mesopelagic fish Gonostoma gracile in the northwestern North Pacific, KAZUHISA UCHIKAWA, ORIO YAMAMURA and YASUNORI SAKURAI, Journal of Oceanography, Vol. 57, pp. 509 to 517, 2001
♦ ²Historic and current habitat use by North Pacific right whales Eubalaena japonica in the Bering Sea and Gulf of Alaska, KIM E. W. SHELDEN, SUE E. MOORE, JANICE M. WAITE, PAUL R. WADE and DAVID J. RUGH, Mammal Rev. 2005, Volume 35, No. 2, 129–155