The Maritime Area Regulatory Authority (MARA) has published a new report examining the impacts of geophysical and geotechnical surveys on fish and shellfish in Irish waters.
The study, prepared by Aquafact, part of the APEM Group, reviews current scientific evidence on the effects of marine site investigation surveys on marine ecosystems. MARA said the report will support decision-making under the Maritime Area Planning Act 2021 and strengthen environmental assessment processes for offshore activities.
The publication comes amid growing offshore development activity, including renewable energy projects, subsea infrastructure and marine site investigations. The report outlines international best practice for mitigating environmental impacts during marine surveys. It also identifies gaps in scientific knowledge where further research may be needed.
MARA Chief Executive Laura Brien said the report would support evidence-based regulation as offshore activity expands. “As activity in Irish offshore waters continues to grow, it is essential that decision-making continues to be underpinned by robust scientific understanding and effective environmental stewardship,” she said.
“The publication of the report reflects MARA’s ongoing commitment to regulate effectively and impartially, while supporting sustainable marine development.”
John Evans, Director of Maritime Usage Licensing and Planning Advisory Services at MARA, said understanding impacts on fish and shellfish was critical for environmental assessments. “This research will help ensure that assessments are grounded in the best available scientific information supporting the sustainable development of Ireland’s maritime sector while protecting marine ecosystems and biodiversity,” he said.
The report, Review of Impacts of Geophysical and Geotechnical Surveys on Marine Fish and Shellfish in Irish Waters, is available through MARA’s website.

















































