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)