Scotland launches 2 year minke whale monitoring before offshore wind cables cross a protected trench

The Southern Trench Marine Protected Area was set up in 2020 to protect minke whales, and 3 ScotWind wind farms that plan to route cables through it are now funding a study that has already retrieved and redeployed recorders at all 3 of its monitoring sites.

21years the new underwater listening study will run, tracking minke whales in the Southern Trench before offshore wind cables are laid
31monitoring sites in the Southern Trench where acoustic recorders have already been retrieved and redeployed
37%2share of the seas around Scotland now protected, after the Southern Trench joined a network of 230 marine sites in 2020

Minke whale monitoring begins in a Scotland offshore wind zone

Minke whale monitoring is now under way in a stretch of protected Scotland seabed that 3 offshore wind projects plan to route cables through. The Southern Trench, off the coast of Aberdeenshire, became a Marine Protected Area on 3 December 2020, one of 4 new sites named that day specifically to protect minke whales. The Scottish Association for Marine Science is now running a 2 year underwater listening study there, paid for by the wind farm developers whose cables would cross the same water. The 3 ScotWind projects funding it are named Broadshore, Caledonia and Muir Mhor, alongside 2 additional funders, Crown Estate Scotland and NatureScot.

Who is funding the new minke whale monitoring study
ScotWind wind farms funding the study, Broadshore, Caledonia and Muir Mhor3Additional funders, Crown Estate Scotland and NatureScot2Total organizations funding the study5012345funding organizations

The total of 5 is the sum of the 3 ScotWind wind farms and the 2 additional funders named in the trade press report, a calculation made for this chart, not a figure the source states as a single number itself.

Source 1.

Show the numbers
ScotWind wind farms funding the study, Broadshore, Caledonia and Muir Mhor3
Additional funders, Crown Estate Scotland and NatureScot2
Total organizations funding the study5

Anja Wittich, project manager at SAMS Enterprise, says the team has already retrieved and redeployed all 3 acoustic recorders used in the study, covering the summer and autumn of 2025.

With the information we can provide the best insights possible into the minke whale movements and can then take the necessary steps to understand potential impacts.

Anja Wittich, project manager at SAMS Enterprise, quoted in source 1. Source 1.

Why the Southern Trench was protected in the first place

Mairi Gougeon, the Minister for the Natural Environment in Scotland at the time of the designation, said the government had a duty to act.

It is our duty to help protect and enhance our marine environment so that it remains a prized asset for future generations.

Mairi Gougeon, Minister for the Natural Environment, quoted in source 2. Source 2.

A regulatory impact assessment the Scottish Government wrote for the site names 6 protected features, 4 for biodiversity, including minke whales, and 2 for geology, including scars left by past submarine mass movements. That same assessment states that 154 nautical miles of pipeline already cross the trench, evidence the whales already share this water with existing infrastructure before a single wind farm cable is laid. Managing the site is meant partly to cut the risk of a minke whale becoming entangled in fishing gear there, the assessment states. The Southern Trench was only 1 of 4 new Marine Protected Areas named that day, alongside 12 new Special Protection Areas, and joined a Scotland wide network that reached 230 protected marine sites, 37% of the seas around Scotland, the same day.

New protected marine sites announced across Scotland, 3 December 2020
New Marine Protected Areas added that day4New Special Protection Areas added that day12Total protected sites across Scotland after that day230050100150200protected sites

The Southern Trench was 1 of the 4 new Marine Protected Areas named that day. The third row is the total size of the entire network after the addition, not a count of sites designated that day alone.

Source 2.

Show the numbers
New Marine Protected Areas added that day4
New Special Protection Areas added that day12
Total protected sites across Scotland after that day230

What the closest comparable study found

The Southern Trench study has not published its own findings yet, so nobody yet knows the exact pattern of when minke whales use this specific stretch of water. The closest published evidence comes from a different, older study on the same coast. Between 2016 and 2018, researchers recorded minke whale calls in the Moray Firth, and found the whales present from May through November, with no calls detected at all in December or January. Calling peaked in June, July and October, and the whales called more at night than during the day. That pattern is the best guide available for what the new study is likely to find once its own 2 years are up, not a substitute for it.

Sources

  1. ScotWind Developers Fund Study to Find Out More About Minke Whale Activity. Offshore Wind. Published 2026-05-11. Accessed 2026-09-21.
  2. Safeguarding Scotland's marine environment. Scottish Government, gov.scot. Published 2020-12-03. Accessed 2026-09-21.
  3. Southern Trench Marine Protected Area, business and regulatory impact assessment. Scottish Government, gov.scot. Published 2020-12-03. Accessed 2026-09-21.
  4. Seasonal and diel acoustic presence of North Atlantic minke whales in the North Sea. Scientific Reports, nature.com. Published 2019-03-05. Accessed 2026-09-21.
  5. Scotland adds four new Marine Protected Areas. Marine Connection. Published 2020-12-04. Accessed 2026-09-21.

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