 These canoes allowed the development of trade between the mainland villages and the offshore islands, and were important to the region's economy and social organization, with trade in food and manufactured goods being carried on between the people on the mainland coast and people in the interior as well.The Gabrieleño regularly paddled their canoes to Catalina Island, where they gathered abalone, which they pried off the rocks with implements made of fragments of whale ribs or other strong bones.The Gabrieleño proper called themselves "kumi.vit".