Marine mammal management units in habitat regulations assessments

This position outlines why NRW considers marine mammal management units (MMMUs) to be the most relevant spatial scale to use in HRA screening and assessment for highly mobile marine mammal species features of special areas of conservation (SACs) around Wales.

As a developer or consultant, you can use the position to help submit applications with enough information to allow the competent authority to assess sites with marine mammal features.

The position includes:

  • our process for considering MMMUs in HRAs
  • conservation objectives
  • the evidence base underpinning MMMUs

NRW’s position on the use of marine mammal management units for screening and assessment in habitats regulations assessments for special areas of conservation with marine mammal features

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