Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAGASAWA K.,Predation by salmon shark (Lamna ditropis) on Pacific salmon (Oncorhynchus spp.) in the North Pacific Ocean,NPAFC Bull.,,,1998,1,,419-433,https://cir.nii.ac.jp/crid/1574231875382132480,