Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HEAGEL C. W.,Distribution of eggs by depth and vegetation type in Pacific herring (Clupea harengus pallasi) spawning in southern British Columbia,Can. J. Fish. Aquat. Sci.,,,1981,38,,381-386,https://cir.nii.ac.jp/crid/1570572700305136128,