Thursday 11 October 2012

Most Whale Deaths Since 1970 Were Human-Caused


Early Sunday (Oct. 7), a 50-foot fin whale was spotted belly-up in Boston Harbor. Biologists are still investigating the cause of death, but some scientists on the scene said they saw a lot of bruising and pressure lines on the whale's body, according to WCBV-TV.
Such markings could indicate the whale got tangled or wrapped in something, which might not come as a surprise. A report out this month found that humans might be to blame for most large whale deaths over the past 40 years in the northwest Atlantic Ocean, with entanglement in fishing gear the No. 1 killer.
The study looked at 1,762 known deaths and likely fatal injuries from 1970 to 2009 among eight species of big whales in the region, including the endangered fin whales, which reach up to 90 feet (27 meters) in length, making them the second-largest living mammals after blue whales. A cause of death had been determined in 750 of the cases (around 42 percent), and of those, nearly 67 percent of the fatalities were human related.

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