Question:
Which is the most common bacterial disease in freshwater aquaculture?
Which is the most common bacterial disease in freshwater aquaculture?
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Columnaris → bacterial → common in warm water fish.
Updated On: Jul 4, 2025
- Columnaris
- Argulosis
- Ichthyophthiriasis
- Dactylogyrosis
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The Correct Option is A
Solution and Explanation
Step 1: Columnaris is caused by Flavobacterium columnare.
Step 2: It affects gills, fins, skin — causes lesions, ulcers.
Step 3: Argulosis is parasitic (Argulus), Ichthyophthiriasis = white spot (protozoan), Dactylogyrus is monogenean parasite.
Step 2: It affects gills, fins, skin — causes lesions, ulcers.
Step 3: Argulosis is parasitic (Argulus), Ichthyophthiriasis = white spot (protozoan), Dactylogyrus is monogenean parasite.
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