Salmon and trout within Onchorhynchus are native to the tributaries of the North Pacific Ocean, with their native ranges extend from the Meer weergeven

A general decline in overall Pacific salmon populations began in the mid-19th century. As the result of western expansion and development in the U.S., experts estimate salmon populations in the Columbia River basin had been reduced to less than 20% of their pre … Meer weergeven

Several species of Oncorhynchus have been successfully introduced into non-native waters, establishing self-sustaining wild populations. The Rainbow Trout Oncorhynchus mykiss is the most widely introduced species of the genus. Rainbow Trout, Meer weergeven

1. ^ Bartel, Rebecca; Oberhauser, Karen; De Roode, Jacob; Atizer, Sonya (February 2011). "Monarch butterfly migration and parasite transmission in eastern North America" Meer weergeven

Several Late Miocene (about 7 million years ago (Mya)) trout-like fossils in Idaho, in the Clarkia Lake beds, appear to be of Oncorhynchus. … Meer weergeven

Canadian efforts
There has been evidence that the sockeye salmon are affected by thermal conditions and their … Meer weergeven

Some of the species in this genus are highly variable and a number of now-obsolete taxa have been described. In 1989, … Meer weergeven