Alaska plaice can live for up to 30 years .
Alaska plaice grow to 60 centimetres ( 24 inches ) long , but most that get caught are only seven or eight years old , and about 30 cm ( 12 in ) .
Alaska plaice can live for up to 30 years , and grow to 60 centimetres ( 24 inches ) long , but most that get caught are only seven or eight years old , and about 30 cm ( 12 in ) .