Q. Which of the following is / are invasive fish species?

1. Suckermouth Catfish
2. Nile Tilapia
3. Hump-backed Mahseer
4. Ganges Shark

Select the correct option from the codes given below:
Answer: Only 1 & 2
Notes: Suckermouth Catfish, native to South America, is an invasive freshwater species valued in the aquarium trade but not as food. Nile Tilapia, native to Africa, is an invasive freshwater fish used for food. its farming was banned in 1959 but later lifted. Hump-backed Mahseer, critically endangered, inhabits the Cauvery River basin, threatened by dam construction and dynamite fishing. The Ganges Shark is critically endangered, found in the Ganga and Brahmaputra Rivers.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.