Potamodromous fish lived their entire lifestyle in Freshwater systems Which of the following is Pota...........

Agriculture and Rural Development (Phase-I/II) Fisheries

Potamodromous fish lived their entire lifestyle in Freshwater systems. Which of the following is Potamodromous fish?

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Nabard grade-A,Previous year Memory Based Paper 18 Sept,2021

Cod

Tuna

Herring

Catfish

Rohu

- Potamodromous fish spend their entire lives migrating only within freshwater systems (like rivers and lakes).

- Cod (Option 1): Not potamodromous. Cod live in marine (saltwater) environments.

- Tuna (Option 2): Not potamodromous. Tuna are also marine fish, living in the ocean.

- Herring (Option 3): Not potamodromous. Herring are marine, some species migrate between salt and fresh water (anadromous).

- Catfish (Option 4): Mostly freshwater, but not all catfish species are potamodromous. Some live in estuaries or can tolerate brackish water.

- Rohu (Option 5): Rohu is a classic example of a potamodromous fish, as it migrates within freshwater systems only (rivers, lakes).

Correct Answer: Option 5, Rohu

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