Statement: A mass mortality of shrimps has been reported across ponds on the Andhra coast due to the presence of a virus. Courses of Action: I. Immediately test and characterize pond water to identify the virus and contamination pathways. II. Temporarily halt shrimp catching/harvesting from affected ponds. III. Alert and train fishers/farmers to monitor early signs and report outbreaks promptly. Which course(s) of action logically follow(s)?
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AOnly I follows
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BAll follow
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COnly I and II follow
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DOnly II and III follow
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ENone of these
Answer
Correct Answer: All follow
Explanation
Introduction / Context:Epizootics in aquaculture demand containment, diagnosis, and stakeholder awareness. The goal is to curb spread, protect food safety, and restore livelihoods through informed biosecurity measures.
Given Data / Assumptions:
- Cause: Viral presence indicated by mass mortality.
- Risk: Spread across contiguous ponds and supply chains.
- Need: Diagnostic clarity, movement control, farmer vigilance.
Concept / Approach:A three-pronged response is warranted: confirm the pathogen (I), limit spread via temporary harvest/catch halt (II), and empower frontline detection and reporting (III). These steps are complementary and time-sensitive.
Step-by-Step Solution:
1) I: Lab testing (PCR/ELISA) and water/sediment profiling identify the agent and guide countermeasures.2) II: Halting harvest/catch prevents cross-contamination through gear, water exchange, and transport.3) III: Alerts and basic biosafety (disinfection, liming, fallowing) reduce recurrence and improve response speed.4) Therefore, all three courses logically follow.Verification / Alternative check:Aquaculture disease protocols emphasize rapid diagnostics, quarantine, and farmer advisories.
Why Other Options Are Wrong:
• Any subset omits essential containment/awareness or diagnosis.Common Pitfalls:Continuing harvesting during outbreaks; acting without pathogen confirmation.
Final Answer:All follow.