Pangasius

Pangasius is a genus of medium-large to very large shark catfishes native to fresh water in South and Southeast Asia. The term "Pangasius" is sometimes used to specifically refer to the commercially important basafish, which is a species within this genus.

Taxonomy

The genus Pangasius belongs to the family Pangasiidae. It was first described by the French zoologist Achille Valenciennes in 1840. The name Pangasius is derived from the local name "panga" used in the Malay language.

Description

Pangasius are characterized by their elongated body shape and broad, flat head. They have a long dorsal fin and a silver-grey body. The size of Pangasius can vary greatly depending on the species, with the smallest species measuring around 1 meter in length and the largest species, such as the giant pangasius, reaching lengths of up to 3 meters.

Distribution and habitat

Pangasius are native to the fresh waters of South and Southeast Asia, including the Mekong River and Chao Phraya River basins. They are benthopelagic fish, meaning they tend to live and feed near the bottom of bodies of water.

Diet

Pangasius are omnivorous, feeding on a diet that includes plants, small fish, and invertebrates. Some species are also known to eat fruits that fall into the water.

Commercial importance

Several species of Pangasius, particularly the basa fish, are of significant commercial importance. They are farmed for food in their native countries and are also exported worldwide. Pangasius is often used in fish and chips in the UK and is also popular in other European countries.

Conservation status

Many species of Pangasius are threatened by overfishing and habitat loss. The IUCN Red List includes several species of Pangasius, with the giant pangasius listed as Critically Endangered.

See also

• List of fish in Thailand
• Aquaculture in Vietnam