A 35-year-old spearfisher was killed by a shark near Michaelmas Island in Western Australia, marking the third fatal shark attack in the country within four weeks. The man was attacked while spearfishing with family and could not be revived despite efforts by paramedics. Authorities suspect a 15-foot white shark was responsible. This incident follows two other recent fatal attacks: one on May 24 involving a 39-year-old spearfisher on the Great Barrier Reef, and another on May 16 when a 38-year-old spearfisher was killed near Rottnest Island. These attacks are unusual in Australia, which typically averages three shark-related deaths annually. Experts suggest that increased shark activity may be linked to changes in migratory patterns due to crowded waters and rising ocean temperatures. The International Shark Attack File has documented over 1,280 shark incidents in Australia since 1791, with more than 250 being fatal.
QUESTION: How might changes in ocean conditions and human activities influence the frequency of shark attacks in the future?
