1. IPNV
Total mortalities in fry infected with IPNV and held at 10°C regularly decreased from 70% in fish infected when 1 to 2 weeks old to a negligible percent in fish infected when 20 weeks old (Dorson, 1981). ... Total mortality from acute infection may reach 70% or more over 2 to 4 weeks (Wolf, 1988). ... Immune response may be compromised due to stress allowing the disease to proliferate. ... Thus increasing the environmental temperature appears to increase the immune response of fish. ... Disease resistance or immune responses appear to be optimized at higher temperatures (16°C). ...
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- Grade Level: High School