Question

Which one of the following is an exotic fish variety?

• A. Silver carp
• B. Rohu
• C. Catla
• D. Mangur

Answer 1

The correct option is A

Silver carp

The correct option is A

The explanation for the correct option:

1. Silver carp is one of the most common exotic species introduced into Bangladeshi waters in recent decades.
2. Because of its excellent growth rate and capacity to coexist peacefully with other carp species, ecologists and fisheries managers have paid increased attention to the silver carp among other exotic fishes.
3. It has grown to be one of the most significant fish species in Bangladesh's pond polyculture system. During the months of April to July, the fish breeds freely in the moving water of its native environment.

The explanation for the incorrect options:

Option B:

1. The rohu, also known as the roho Labeo, is a carp-like fish found in South Asian rivers.
2. Rivers in northern, central, and eastern India are home to the rohu.
3. In South Asia, the rohu is a major aquacultured freshwater species. It does not breed in lake habitats when farmed, hence induced spawning is required. The rohu is also a popular sport fish.

Option C:

1. Catla, commonly known as the large South Asian carp, is a commercially important freshwater fish from South Asia belonging to the Cyprinidae family.
2. It is found in northern India, Bangladesh, Myanmar, Nepal, and Pakistan, where it grows in rivers and lakes.
3. It is one of South Asia's most prominent aquacultured freshwater species.

Option D:

1. Mangur is a catfish that growers choose because of its capacity to eat anything and endure in harsh environments.
2. It prefers still or slow-moving water. It has an omnivorous diet, as well as the capacity to live on land and hide in plants.
3. These properties make the growth of the fish simple, profitable, and cost-effective.

Final Answer: The exotic fish variety from the following is Silver carp.