EAS 1540 Lecture Notes - Lecture 14: International Whaling Commission, Marine Pollution, Toothed Whale
23 Dec 2016
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Document Summary
Pakicetus = hoofed mammal that is sometimes classified as earliest whale. Looked like a dog/wolf/deer with long thick tail. Special ear bone that connects these species together. Summer feeding - high latitudes, long days, lots of biological productivity. Winter calving - low latitudes, usually warm, low/no food. Long, low-frequency sounds known as the whale song. Primary used for sexual selection during mating season. Oil exploration (seismic surveys with explosive air guns/cannons a. Repeats every 10 seconds, 24 hrs a day, for days and weeks at a time. Acoustic habitat - no different than spatial habitat and needs to be preserved. Noise pollution - every bit as destructive as other forms of more familiar marine pollution (oil, nitrogen, plastic, etc) International whaling commission (iwc) - gets help from scientists and they give recommendations as to how many whales you can take out of the ocean so the population still remains stable. In 1982, applied a moratorium to all commercial whaling.
