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_H4B2657.jpg Coho Salmon (Oncorhynchus kisutch)
Coho or silver salmon (Oncorhynchus kisutch) during fall spawning migration trying to jump river falls.  Pacific Northwest.  October.  Wild fish not hatchery fish.  The yellow/brown water is from tannin formed by leaves (mostly big leaf maple) decomposing in the river--quite natural in fall.