Walleye pollock were collected using a mid-water trawl (head rope: 38.2 m; net height: 40 m) with a 70 mm stretched-mesh cod end in October and a mid-water trawl (head rope: 31.2 m; net height: 16 m) with a 60 mm stretched-mesh cod end in April. Towing depth was determined by an echo sounder