Ricker, W. E. (1981). "Changes in the average size and average age of Pacific salmon". Canadian Journal of Fisheries and Aquatic Sciences. 38 (12): 1636–1656. Bibcode:1981CJFAS..38.1636R. doi:10.1139/f81-213.
IIshida, Y.; Ito, S.; Kaeriyama, M.; McKinnell, M.; Nagasawa, K. (1993). "Recent changes in age and size of chum salmon (Oncorhynchus keta) in the North Pacific Ocean and possible causes". Canadian Journal of Fisheries and Aquatic Sciences. 50 (2): 290–295. Bibcode:1993CJFAS..50..290I. doi:10.1139/f93-033.
Bigler, B. S.; Welch, D. W.; Helle, J. H. (1996). "A review of size trends among North Pacific salmon (Oncorhynchus spp.)". Canadian Journal of Fisheries and Aquatic Sciences. 53 (2): 455–465. doi:10.1139/cjfas-53-2-455.
Ricker, W. E. (1981). "Changes in the average size and average age of Pacific salmon". Canadian Journal of Fisheries and Aquatic Sciences. 38 (12): 1636–1656. Bibcode:1981CJFAS..38.1636R. doi:10.1139/f81-213.
IIshida, Y.; Ito, S.; Kaeriyama, M.; McKinnell, M.; Nagasawa, K. (1993). "Recent changes in age and size of chum salmon (Oncorhynchus keta) in the North Pacific Ocean and possible causes". Canadian Journal of Fisheries and Aquatic Sciences. 50 (2): 290–295. Bibcode:1993CJFAS..50..290I. doi:10.1139/f93-033.