Kaluga Sturgeon aka Huso dauricus – Profiles and Photos

The Kaluga Sturgeon is a large predatory fish found in the Amur River Basin. They are believed to be one of the largest (if not the largest) freshwater fish in the world. Unfortunately no one will ever be able to substantiate any of those claims due to the actions of poachers. It is illegal to even fish for a Kaluga Sturgeon due to massive poaching for the valuable roe (eggs) . The population is now critically endangered. Despite the fact that it is illegal and the rivers are patrolled, poachers still catch and kill these giant fish.

Some claim the Kaluga Sturgeon can reach 2,200lbs and over 18′ (6 meters) long, however no proof of a fish this size has ever been produced. I imagine over the years the poachers probably caught some world records, but those fish are long gone by now and obviously the poachers couldn’t care less about that. They just want the eggs for the black market. I’ve seen a few photos of some pretty good size specimens, but nothing close to 18′.

Scientific Name – Huso dauricus

Common Name – Kaluga Sturgeon, Kaluga Fish, River Beluga

Regions of Origin – Amur River Basin

Temperament – Aggressive & Predatory Sturgeon species, unlike other fish in the Sturgeon family the Kaluga has teeth.

Maximum Size – Up to 18′ & 2,200lbs (Unproven)

Diet – Smaller Fish, Invertebrates, Salmon

Water – The Kaluga come from cool waters, around 50-68 degrees (10-19 celcius) Fahrenheit.

Jeremy wade with a Baby Kaluga Sturgeon (Huso dauricus)

Jeremy Wade holding a 4′ long Kaluga Sturgeon (Huso dauricus)


  • Liam M says:

    The Kaluga is a pretty cool fish, that’s no lie, but I personally find its closest living relative, the Beluga Sturgeon, a bit more interesting. A native to the Caspian Sea and its surrounding tributaries, the Beluga Sturgeon (Huso huso) is quite similar to the Kaluga in size and build. Also like the Kaluga, the Beluga is under threat by similar illegal caviar poaching operations. Despite this, it seems that the Beluga population. is faring better than that of the Kaluga. With a higher population, Beluga Sturgeons now tend to be larger than Kalugas despite having a smaller maximum size. One such large Beluga can be seen in the video below. From the man-to-fish size comparison at the end of the video, I estimate that this fish is around 13 feet long, just 3 feet shy of the Beluga Sturgeon max length of 16 feet long. So now, the Beluga could currently be the largest freshwater fish species in the world, beating out the Bull Shark, Mekong Catfish, and possibly even the Giant Freshwater Stingray. Quite an interesting fish, isn’t it.
    WARNING: Mute your computer before watching this video, the music is very loud and unsettling.


Leave a Comment