Sperm whale on the flensing deck at one of the Soviet Kuril Islands whaling stations. Photo by A.V. Yablokov.
Scientists with the Center’s National Marine Mammal Laboratory (NMML) report on the former U.S.S.R’s illegal whaling of this species, which was was conducted secretly and on a massive scale, with size limits and other regulations largely ignored. (Japan was also killing large numbers of sperm whales and falsifying data.) With their discovery of formerly secret Soviet whaling industry reports which had not been destroyed but were in Russian public archives containing the true catch data, (unlike the falsified records that were submitted to the International Whaling Commission) NMML scientists are attempting to wring as much information as possible from the illegal whaling data, with the hope that the Soviet bureaucrats’ obsession with detail can now be put to use in the service of a better understanding of how to conserve this remarkable species.
A long history of exploitation:
None of these characteristics, however, saved sperm whales from human greed. Although sperm whale meat is definitely not good to eat–it is so highly oxygenated that it is truly black rather than dark red–the whale’s oil is of extraordinary quality, and for many years whale oil quite literally lit the streets of the industrialized Victorian world. Sperm whale oil maintains its lubricative powers at extremes of temperature, and as a result it was much sought-after for use in everything from watches to heavy machinery. Beginning in the late 18th century, American whalers began seeking out sperm whales farther and farther afield from their home bases in New Bedford, Nantucket, and other New England ports. They were joined in these predatory explorations by vessels from other nations, and sperm whalers were often the first westerners to discover new areas of ocean (and sometimes even new lands). So valuable was sperm whale oil that voyages of 4 or even 5 years, taken to the other side of the world, became common during the height of historical whaling in the 19th century. Through examination of old whaling logs and other historical records, retired NMFS biologist Tim Smith and colleagues estimated that, between 1712 and 1899, some 300,000 sperm whales were killed worldwide, most by sail-based whalers who chased whales from small open boats and used hand-held harpoons and lances to kill them. Occasionally a sperm whale had the upper hand: the most famous case is that of the Nantucket whaler Essex, which was stove and sunk by an angry male sperm whale in the Pacific Ocean in 1820; the crew were subsequently forced to endure months in an open boat and eventually resorted to cannibalism before finally being rescued. But although this incident was dramatic (it inspired Herman Melville’s classic novel Moby Dick) it was an exceptional event even then; and when the invention in the late 1800s of steam-powered catchers and explosive harpoons ushered whaling into a modern, industrialized era, no whale anywhere was safe.
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From a National Marine Mammal Laboratory: Research Feature