Abstract:
Study on Kryptopterus and Ompok (Siluridae) in Indonesia, and in Sumatra particularly, is scarce.
Less study on the fish because Kryptopterus and Ompok were not found in all rivers in Indonesia.
They were found limited to a few ecosystem of the floodplain river in Kalimantan, Jambi,
Palembang and Riau. Riau Province has a potential of the ecosystem of floodplain river with its
high diversity of fish species. Floodplain river is a unique and complex ecosystem, it includes
watersheds, oxbow lake, marshes and rivers which has the unity function for the survival of many
species fish. Among the fish that live in the ecosystem of foodplain river in Riau Province are
Kryptopterus and Ompok belonging to the familiy Siluridae. They are generally known as lais fish,
or in Riau Province is known as selais fish. Five species of selais fish were found in Riau
Province, namely K. apogon, K. limpok, K. schilbeides, O. eugeneiatus and O. hypophthalmus.
Study on genetic diversity and biological reproduction of selais fish in Riau Province has been
done. Potential genetic resources and biological reproduction of fish asssociated with its habitat
will be discussed and can be used as the basis for the next development of biological resources in
the floodplain river of Riau Province
