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Potential drivers of virulence evolution in aquaculture
David A Kennedy1, Gael Kurath2, Ilana L Brito3
1Center for Infectious Disease Dynamics Departments of Biology and Entomology The Pennsylvania State University University Park PA USA; Fogarty International Center National Institutes of Health Bethesda MD USA.
Evolutionary Applications
|February 3, 2016
Summary
Aquaculture practices can unintentionally drive the evolution of more virulent pathogens, posing economic risks. Awareness and vigilance in disease management are crucial for preventing problematic pathogen strains in aquaculture.
Area of Science:
- Aquaculture
- Evolutionary Biology
- Pathogen Dynamics
Background:
- Infectious diseases significantly impact aquaculture economics.
- Aquaculture expansion and intensification heighten the need for effective disease management.
- Understanding pathogen evolution is key to mitigating disease risks.
Purpose of the Study:
- To identify specific aquaculture practices that may promote the evolution of increased pathogen virulence.
- To raise awareness among aquaculture managers about potential evolutionary risks.
- To provide insights for preventing the emergence of more virulent pathogen strains.
Main Methods:
- Application of evolution of virulence theory.
- Analysis of common aquaculture practices.
- Identification of practices favoring pathogen virulence evolution.
Main Results:
- Eight common aquaculture practices identified as potentially favoring increased pathogen virulence.
- Four practices linked to intensive aquaculture operations.
- Four practices associated with infectious disease control measures.
Conclusions:
- Certain aquaculture practices can inadvertently select for more virulent pathogens.
- Increased vigilance by aquaculture managers is essential for early detection and prevention.
- Proactive management can help avert the spread of troublesome pathogen strains.
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