Ques. 1AIPMT 2001
Which fish selectively feed on larva of mosquito?
- Clarias
- Rohu
- Exocoetus
- Gambusia
Answer
(4) Gambusia
Solution
As per NCERT, malaria and other mosquito-borne diseases can be controlled by introducing fishes like Gambusia in ponds, which feed on mosquito larvae.
⇒ Gambusia (mosquito fish) is therefore used as a biological control agent of mosquitoes.
∵ Clarias (catfish) and Rohu are food fishes, and Exocoetus is the flying fish; they are not larvivorous control agents.
Answer: (4)
Out of syllabus