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Because of being an island, Sri Lanka has many endemic freshwater fauna, as well as thousands of marine and brackish water fauna. [1] Fishing is the way of life of most of coastal community. So, the marine fish fauna gives a greater commercial value to the country's economy, as well as well being of the coastal people. [2]
Few fish can be found in all three ecological systems. There are 95 species of freshwater fish occur in the country, where 53 of those are endemic. 41% of all known species of fish of Sri Lanka are found in freshwater. There are about 70% of endemism of those fish. Most of them are listed into IUCN categories.
The Japanese kokanee, also known as the kunimasu salmon or black kokanee, is considered a subspecies of the sockeye salmon by some, or even a separate species Oncorhynchus kawamurae, and occurs naturally in Lakes Akan and Chimikeppu on Hokkaido Island. [ 6 ] The creation of a dam caused the extermination of the fish by changing the lake pH.
Sicklefin weasel shark. Shovelnose sea catfish. Sixgill stingray. Spotted sea catfish. Stripenose guitarfish.
Sri Lankan freshwater habitats can be divided into 6 major types - river, stream, lake, pond, villu and paddy field - according to size, depth, rate of flow and type of bottom. Medium-sized rivers are called Oya and fast flowing streams torrential streams are called Dola in Sinhalese. The following list provide the freshwater fauna of Sri Lanka.
Since Sri Lanka was ruled by the Portuguese, Dutch, and British. At various junctures, these nations introduced a number of exotic species, which included mammals, plants, birds, and fish. After Sri Lanka secured its independence, the introductions continued unabated, and the breeding of exotic aquarium fish for export became popular.
Wallago attu. Wilpita rasbora. Categories: Fish of Sri Lanka. Freshwater fish by country. Freshwater fish of South Asia.
Oncorhynchus rastrosus (originally described as Smilodonichthys rastrosus[2]) also known as the saber-toothed salmon (now known to be a misnomer), [3] or spike-toothed salmon[1] is an extinct species of salmon that lived along the Pacific coast of North America and Japan. [4] They first appeared in the late Miocene in California, then died out ...