Salmonidae

Taimen

Hucho taimen

Fifty five winters guarding a cold river pool

• Brown
• Gray
• Silver
• Temperate
• Northern Hemisphere
• Regional distribution
• Freshwater fish
• Fusiform
• Large
• Temperate fish

Revered as the ferocious river wolf of northern Eurasia, the taimen is the largest freshwater salmonid on Earth, dominating cold pristine river systems across Siberia. Its massive, elongated cylindrical frame features a greenish-grey head and dorsal surface that shifts into copper-red flanks and deep crimson across the anal and caudal fins during the spawning season. A cavernous mouth armed with formidable inward-curving teeth allows it to seize powerful prey with crushing grip. Distributed through clean, fast-flowing boreal river basins across the Ob, Yenisei, Lena, and Amur drainages, it thrives in deep river pools, gravel rapids, and canyon torrents. As an apex aquatic carnivore, adults feed aggressively on whitefishes, grayling, rodents, frogs, and swimming waterfowl. Extremely slow-growing and long-lived, individuals may survive beyond fifty years. Highly vulnerable to river impoundment and warming, this majestic apex predator can attain impressive maximum recorded total lengths up to two hundred centimetres and masses exceeding one hundred kilograms.

Sources: FishBase — Taimen, Hucho taimen