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Evidence review of harbour porpoise disturbance ranges in the context of the assessment and management of impulsive noise in Special Areas of Conservation: unexploded ordnance clearance to military sonar 2025

Abstract

This report represents one of two complementary reports which contribute to an evidence review of harbour porpoise disturbance ranges in the context of the assessment and management of impulsive noise in Special Areas of Conservation. This report covers unexploded ordnance clearance, explosives for decommissioning, seismic (airgun) survey, sub-bottom profilers, ultra-short baseline acoustic positioning, acoustic deterrent devices, multi-beam echosounders, and military sonar.

The evidence review has been published alongside a series of other associated JNCC reports. Please go to: Guidance on noise management in harbour porpoise SACs (2020); and New updated Effective Deterrent Ranges (2025) to find out more.

Resource type Publication

Topic category Environment

Reference date 2025·09·01

Citation
Majewska, K., Brown, A.M, Charish, R., Quinn, M. & Matei, M. 2025. Evidence review of harbour porpoise disturbance ranges in the context of the assessment and management of impulsive noise in Special Areas of Conservation: unexploded ordnance clearance, explosives for decommissioning, seismic (airgun) survey, sub-bottom profilers, ultra-short baseline acoustic positioning, acoustic deterrent devices, multi-beam echosounders, and military sonar. JNCC Report 798. JNCC, Peterborough, ISSN 0963-8091.

Lineage
This is a JNCC-commissioned report completed by SMRU Consulting. The primary intended audience is the JNCC and other statutory nature conservation bodies, to provide a resource to inform development of their guidance.

Responsible organisation
Communications, JNCC publisher

Limitations on public access No limitations

Use constraints Available under the Open Government Licence 3.0

Metadata date 2025·09·10

Metadata point of contact
Communications, JNCC

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