Fish DiseaseDr Seshagiri Raossbiofish@gmail.com2013 October revised

Types of Pathogens

• Viruses• Bacteria• Fungi• Parasites and commensals• Toxic syndromes and environmental extremes

Zooplankton

Phyto plankton

Insects Parasites

Protozoans

Fungal Bacteria

Virus

DDTBHC 50%KeroseneCaustic soda