The Beluga sturgeon is a remarkable fish that has been revered for centuries for its luxurious caviar. While the sturgeon is primarily known for its eggs, there are plenty of other interesting facts to learn about this fish that make it truly fascinating.

Here are some surprising facts about the Beluga sturgeon:

1. Long lifespan: The Beluga sturgeon is one of the longest-living fish in the world. It is not uncommon for them to live for over a century, with some individuals surviving for up to 118 years. This is due to their slow growth rate, which means they take a long time to reach maturity.

2. Large size: The Beluga sturgeon is the largest freshwater fish in the world, with some individuals growing up to 20 feet long and weighing over two tons. They are typically found in the Caspian and Black Sea regions, where they can reach these massive sizes due to the abundance of food available in these areas.

3. Unique anatomy: The Beluga sturgeon has a unique anatomy that sets it apart from other fish. It has a 5-7 row of bony plates, or scutes, along its body that protect it from predators. It also has a long, pointed snout that it uses to sift through sediment on the bottom of the river or sea to find food.

4. Threatened species: Despite their long lifespan and impressive size, the Beluga sturgeon is now considered a threatened species due to overfishing and habitat destruction. The demand for their caviar has led to widespread poaching, with some estimates suggesting that as much as 90% of the population has been lost in the last 20 years.

5. Slow reproductive rate: Beluga sturgeon only spawn every 4-5 years, and the females only release their eggs once in their lifetime. This makes it difficult for the population to recover from overfishing, as it takes many years for a single fish to reach maturity and contribute to the next generation.

6. Caviar production: The Beluga sturgeon is primarily harvested for its caviar, which is highly prized for its delicate flavor and creamy texture. It takes up to 20 years for a sturgeon to reach the age where it can produce high-quality caviar, and the process of harvesting the eggs is very delicate and time-consuming.

In conclusion, the Beluga sturgeon is a remarkable fish that has captured the imagination of people for centuries. While its caviar is famous all over the world, it is important to remember that these fish are also an important part of the ecosystem, and their survival is crucial for maintaining the health of our waters.