Steelhead trout is not as high in omega-3 fatty acid content as fish like mackerel or tuna, but it is less likely to contain contaminants. Per serving, steelhead trout is comparable in omega-3 fatty acid content to halibut, pollock and smelt. 1  Monterey Bay Aquarium Seafood Watch: Rainbow Trout.  USDA National Nutrient Database for Standard Reference: Nutrient Data for 15241, Fish, Trout, Rainbow, Farmed, Cooked, Dry Heat.
Ob River. Written By: Ob River, river of central Russia. One of the greatest rivers of Asia, the Ob flows north and west across western Siberia in a twisting diagonal from its sources in the Altai Mountains to its outlet through the Gulf of Ob into the Kara Sea of the Arctic Ocean.
River Irtysh is the major tributary of the Ob River of western Siberia. It emerges from the Altay Mountains and passes through Siberia, China as well as Kazakhstan. The gigantic river is 4,248 kilometers in length with an enormous basin area covering 1,643,000 square kilometers.he longest river of Asia and the third longest in the world, the Yangtze River flows through China. It originates from the Geladaindong Peak in Qinghai and covers a distance of 6,300 kilometers before meeting its fate at Shanghai where it joins the East China Sea.