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Home » Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be categorised as (1) Alien species invasion (2) Co-extinction (3) Habitat fragmentation (4) Over exploitation
Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be categorised as
(1) Alien species invasion
(2) Co-extinction
(3) Habitat fragmentation
(4) Over exploitation
biology
Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be categorised as
(1) Alien species invasion
(2) Co-extinction
(3) Habitat fragmentation
(4) Over exploitation

The correct option is (1) Alien species invasion.

This is because – Introduction of the African catfish Clarias gariepinus for aquaculture purposes has become a threat to indigenous catfishes in our rivers. Clarias gariepinus is an alien species for the communities in Yamuna.

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