Seabed life triples in Scottish marine zone a decade after trawling ban
Scotland’s South Arran Marine Protected Area is teeming with life again, ten years after bottom trawling was restricted across much of the zone. Scientists pulled up just 100 liters of sediment and counted more than 1,500 organisms representing over 150 species — spoon worms, tower snails, and tiny “gardeners of the seabed” that quietly cycle nutrients and lock carbon into the ocean floor. Researchers found three times more organisms and twice the species diversity compared to nearby unprotected waters, all without any active restoration. The lesson is beautifully simple: lift the nets, wait, and life returns. For Europe’s battered seafloors — and for marine recovery efforts worldwide — South Arran is a quiet, powerful proof of concept.









