Lates calcarifer, commonly known as Barramundi or Asian sea bass, is a large, silver-scaled fish native to the Indo-West Pacific region. It thrives in both freshwater and saltwater environments. Known for their ability to transition between these habitats, Barramundi are prized for their mild-flavored flesh and significant role in commercial fisheries.

Lates calcarifer, commonly known as the Barramundi or Asian sea bass, is native to the Indo-West Pacific region. This includes Northern and Eastern Australia, Southeast Asia, and extends westward to South Asia, including countries like India and Sri Lanka. Its distribution also spans to the Persian Gulf and as far east as Papua New Guinea and Northern Australia.

Barramundi typically inhabit coastal, freshwater, and estuarine environments. They are highly adaptable and are found in both saltwater and freshwater systems. The species thrives in warm, tropical climates, usually found in temperatures ranging from 26°C to 30°C (79°F to 86°F). They can be found in rivers, lakes, and swamps, often utilizing mangroves and tidal flats as part of their habitat during different life stages.

Barramundi occupy a versatile ecological niche, as they are both predators and prey within their ecosystems. Juvenile barramundi often inhabit freshwater environments, whereas adults are more frequently found in brackish and marine waters. They play a significant role as top-level predators, feeding on crustaceans, mollusks, and smaller fish, thus maintaining the balance of aquatic ecosystems.