Indicator 4.5.6

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System

Water Type

Feed Dependent

Species

Indicator 4.5.6

by Contact on 8 October 2026

Requirement

Scope: areas with native salmonids The UoC shall conduct on-site sea lice sampling, following the method outlined Appendix 13 (13.4).

How Do I Interpret This Requirement?

  • The following are examples of exceptions to the sampling frequency required by Appendix 13 (13.4) regarding environmental conditions that may affect fish welfare:

    • Water temperature (i.e. below 4^o^C).

    • Low oxygen.

    • Algal bloom.

    • Jellyfish event.

    • The person conducting on-site sea lice sampling should demonstrate competence and training.

      • Including competence and training in identifying sea lice species and stages.

Evidence of Implementation

  • Records that demonstrate:

    • On-site sea lice sampling complies with the requirements in Appendix 13 (13.4).

    • The application of an exception as per Appendix 13 (13.4).

    • The competence and training of the person conducting on-site sea lice sampling.

Auditors Should Confirm

  • On-site sea lice sampling complies with the requirements in Appendix 13 (13.4).

  • If practicable, auditors should observe sampling while on-site.

    • The rationale for any exception.

    • Competence and training of the person conducting on-site sea lice sampling.