Big Sturgeon, scientific name Huso huso, is one of the mysterious giants of the seas and rivers. As a member of the Acipenserida family, this fascinating creature offers one of the keys to the magical world of underwater life. In this article, we will explore the physical characteristics, life cycle, feeding habits and threats of extinction of the Greater Sturgeon.
Big Sturgeon (Beluga) Characteristics
The Big Sturgeon is a creature that fascinates the audience with its appearance. Adults generally have a heavy-bodied appearance, but younger species are noted for their more aerodynamic build. The skin membranes limit the gills in the throat area and this feature distinguishes them from other fish. Their mouths are wide and they have two pairs of long mustaches on their muzzles. The scales are solid, but they wear down and fade as they age.
Life Cycle and Reproduction
Big Sturgeons spend most of their lives in the sea. In September and October, they travel 500 kilometers or more to the upper reaches of rivers, starting their breeding migration. Towards the end of spring, in April and May, they migrate to the lower and middle parts of the rivers. At this point, they prepare for spawning in stony and bush areas. Females lay an incredible number of about 7 million eggs. After about a week, these eggs hatch and offspring emerge. Juveniles migrate to the open sea during their first year of life, while adults return to the sea.
What Does Beluga Sturgeon Eat?
Young sturgeons feed on invertebrates and small fish, while adults feed almost entirely on fish. These giant creatures are at the top of the hunting pyramid of the seas and prey on many different organisms, from waterfowl to seals.
Where Do Beluga Sturgeons Live?
Beluga Sturgeons live mainly in mid-water areas near the surface or above thin sediments. They are usually found in areas close to streams and estuaries. In winter, they migrate to deeper waters in regions with temperature changes such as the Black Sea.
Great Sturgeons live in river systems connected with the Adriatic Sea, the Black Sea and the Caspian Sea. However, their population has drastically declined. Some populations are classified as endangered by the IUCN (Red List of Endangered Species) and one is even considered extinct.
As a result, the Big Sturgeon is one of the unique inhabitants of the seas and rivers. Its size, reproductive rituals and importance in the ecosystem make it special. However, conservation efforts are of great importance as it faces threats of extinction. The survival of this unique creature also plays a critical role in the health of our seas.
