For centuries, the Amur River basin has been known for its abundance of fish. Today, this region is home to several species of salmon and trout that provide some of the world’s finest sport fish. However, one species stands out above all others: the Kaluga caviar from Russia’s Kaluga Region. This delicious delicacy has earned it a reputation as one of the best-tasting caviar in existence—and for good reason! Here are five things about this rare treat:

Kaluga fish are native to the Amur River basin.

The Amur River basin is home to many different species of fish, including the Kaluga. The Kaluga is a type of carp that has been bred over time to become more domesticated and less aggressive than its wild ancestors. It can be found in Eastern Russia, where it thrives on small streams and rivers.

The Amur River basin has been an important area for human activity since prehistory—it was used by Siberians as early as 9000 BC; they grew crops here long before agriculture became widespread throughout Eurasia (see below). During Soviet times (from 1917 until 1991), most people lived off-grid because there wasn’t enough power available at farms or townships across this region due to poor infrastructure projects carried out during World War II by Stalin himself!

Kaluga is the largest water organism in the world.

Kaluga is the largest water organism in the world. It can be up to four times longer than an adult human, and it’s also heavier than an average car.

The length of a Kaluga depends on its age: new ones are smaller and younger, while older ones grow faster. They reach their full size after about two years—you might imagine that this could take some time! However, because they’re so big (and heavy), slow growth means that they may not be ready to lay eggs until several years later than other types of caviar.

To become fertile, Kaluga’s must have access to fresh water year-round; otherwise, they will never have enough nutrients available in their diet for reproduction purposes.”