The organisms that prefer high salt concentration habitats refer to as

Organisms that prefer or require high salt concentration habitats are known as halophiles, a term derived from the Greek for 'salt-loving'. These extremophiles are found across the domains of Archaea, Bacteria, and Eukarya and are specifically adapted to thrive in hypersaline environments such as salt lakes, evaporation ponds, and the Dead Sea [1]. Halophiles are classified based on their salt tolerance: slight halophiles (1.7–4.8%), moderate halophiles (4.7–20%), and extreme halophiles (20–30% or higher). Unlike halotolerant organisms, obligate halophiles require high salinity for growth and metabolism, often maintaining osmotic equilibrium by accumulating potassium ions or excluding salt from their cytoplasm [2]. In contrast, alkaliphiles prefer high pH environments, calcifuges are plants that cannot tolerate alkaline or lime-rich soil, and nitrophiles are organisms that thrive in nitrogen-rich environments.

Sources

1. [1] https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/halophile
2. [2] https://pmc.ncbi.nlm.nih.gov/articles/PMC7024382/