Tourism is one of the major industries in the Great Barrier Reef region. Scientists took blood samples from lots of baby sea turtles near the Great Barrier Reef. Overfishing of sea cucumbers in the Great Barrier Reef is threatening their population. Tropical cyclones are a cause of ecological disturbance to the Great Barrier Reef. Dwarf minke whales are common off Great Barrier Reef in winter. A daily fee is levied that goes towards research of the Great Barrier Reef. Port Douglas is near the Great Barrier Reef. The problems that surround ecotourism in the Great Barrier Reef revolve around permanent tourism platforms. In the 1980s, tourism in the Great Barrier Reef region expanded rapidly. In Australia, hawksbills are known to nest on Milman Island in the Great Barrier Reef. Around 13.6% of Belize's territorial waters, which contain the Belize Barrier Reef, are also protected. Her remains were scattered in the Great Barrier Reef. They are protected in the Great Barrier Reef. She was certified in scuba diving in the Great Barrier Reef for the underwater scenes. Another key threat faced by the Great Barrier Reef is pollution and declining water quality.