Two pink salmon males (zool. Oncorhynchus gorbuscha) in its lush spawning attire and one coho salmon male (zool. Oncorhynchus kisutch), which doesn't change very much during the spawning. Living in the ocean all kinds of salmon are uniquely silver colored. Going up the rivers many salmon species change their silvery scales for bright marital attire. The male pink salmon undergoes a very noticeable change in form in the spawning season, with the body deepening and developing a prominent hump in front of the dorsal fin; the jaws elongating and becoming hooked at the tip and the teeth increasing in size. Pink colored meat and red fish eggs are common for all species of pacific salmon. There are 6 species of the true pacific salmon (zool. Oncorhynchus), which spawn in the rivers Kamchatkas'. Additionally some few kinds of trouts live the whole year in the rivers. The majority of the adult salmons have a length between 50 and 90 cm and a weight of 1.5 to 5 kg. Only the chinook salmon (zool. Oncorhynchus tschawytscha) is significant bigger: up to 1.5 m length and 32 kg weight. The chinook salmon enters as the first one the rivers of Kamchatka, in May, just after the ice disappear. The other species migrate upstream the whole summer and autumn, until the ice covers the rivers again. The young salmons arrive in the ocean after 1 or 2 years. Kokanee is a landlocked form of the sockeye salmon (zool. Oncorhynchus nerka), which spend the whole life in the fresh water. Some seldom geological events can change the hydrology of a region and hinder the young salmons by going to the see. Kokanees look identical like the migrating form, e.g. the males have the same beautiful red body color during the spawning season. But they grow in fresh water much slower and get smaller than their well fed relatives in the see.