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A woman with gloves takes samples from fish at a hatchery

Inspections by La Crosse Fish Health Center Midwest Region

Updated September 23, 2026

What are Fish Health Inspections?

Inspections are a statistically based onsite sampling of all lots of aquatic animals on the facility that a Service aquatic animal health professional performs or supervises, with subsequent examination of the collected tissues and fluids for the detection of listed pathogens. Monitoring and diagnostic results may contribute to inspection sampling requirements. 

What if pathogens are found during an inspection?

Any time that a pathogen is detected and confirmed by inspection, monitoring, or diagnostics on the facility’s inspection plan for a lot, or a pathogen is detected that is an emerging or exotic pathogen deemed significant, the Service aquatic animal health professional must immediately report the detection for the facility on the Fish Health Inspection Report. If it is confirmed by inspection, monitoring, or diagnostics, the Service must notify the appropriate Regional Director, Assistant Regional Director, the Chief of the Branch of Hatchery Operations and Applied Sciences (BHOAS), the facility manager, and potentially affected Federal, State, and Tribal authorities.

Why Fish Health Inspections?

Who do we provide Services For?

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