Brine Shrimp in Kuyalnik Estuary: An Essential Biological Resource
Against the backdrop of high salinity levels in the Kuyalnik Estuary, there is a notable mass reproduction of brine shrimp – a unique freshwater crustacean that has adapted to extreme conditions. This species plays a vital role in the estuary's ecosystem and is a valuable biological resource.
This information was shared on the official Facebook page of the National Park "Kuyalnik".
Who has appeared in the estuary
Brine shrimp (Artemia) is a distinctive freshwater crustacean from the family Artemiidae that has existed for about 100 million years. It can survive in the extreme conditions of saline waters. High salinity forces the shrimp to expend a lot of energy to eliminate excess salt from its body, but the absence of predators, particularly fish, gives it a significant advantage. With plenty of food available, such as bacteria and microalgae, brine shrimp can thrive, forming large clusters along the shores of the Kuyalnik Estuary.
A special species inhabiting the Kuyalnik Estuary is Artemia parthenogenetica, or parthenogenetic brine shrimp. Its uniqueness lies in its ability to reproduce without males: females produce eggs or larvae (nauplii) without fertilization. This allows the brine shrimp to reproduce rapidly and exploit food resources. When environmental conditions deteriorate, female brine shrimp produce dormant or "resting" eggs that can survive winter and endure freezing or desiccation. In spring, when conditions become favorable, these eggs hatch into new larvae, which reach maturity in two to three weeks and continue to reproduce.
Due to its unique properties, brine shrimp has become an indispensable live feed in aquaculture. Brine shrimp larvae are widely used to feed fish and shrimp fry. The National Park "Kuyalnik" emphasizes that brine shrimp is an important biological resource of the estuary that requires protection and rational use, as this species plays a key role in the ecosystem and serves as a foundation for the development of aquaculture.
