Description of Karana in Island of the Blue Dolphins?

The protagonist and narrator of the book, Karana spends eighteen years as the only living person on the island of the blue dolphins. When the book opens, she is twelve years old, the daughter of the chief of Ghalas-at. Resourceful and resilient, she survives on her own after her tribe deserts Ghalas-at. She learns to live in harmony with her island, but longs for the human contact she is missing.