Sentences with phrase «whale population based»

Not exact matches

The old estimates were based on 20th - century data from the whaling industry itself, which estimated a worldwide sperm - whale population of about 1.8 million, a number that few scientists found credible.

«Though humpback whales are found in all oceans of the world, the North Pacific humpback whales should probably be considered a sub-species at an ocean - basin level — based on genetic isolation of these populations on an evolutionary time scale,» said Scott Baker, associate director of the Marine Mammal Institute at Oregon State University's Hatfield Marine Science Center and lead author on the paper.

The International Whaling Commission calculates natural population sizes based on analysis of the logbooks of whaling captains and other historicaWhaling Commission calculates natural population sizes based on analysis of the logbooks of whaling captains and other historicawhaling captains and other historical data.

The new estimates suggest that proposals to lift the International Whaling Commission's 18 - year - old moratorium on commercial whaling are based on a faulty assessment of what constitutes natural populationWhaling Commission's 18 - year - old moratorium on commercial whaling are based on a faulty assessment of what constitutes natural populationwhaling are based on a faulty assessment of what constitutes natural population sizes.

Of particular interest is the possibility of a large population decline prior to whaling, as such a decline could explain the ∼ 5-fold difference between genetic estimates of prior abundance and estimates based on historical records.

Shore - based whaling stations near Victoria on Vancouver Island, using only row boats and hand - thrown harpoons, removed the entire population in less than a decade.

What this means is that the IWC Scientific Committee will soon set quotas for more Gray Whales to be killed by indigenous tribes based on deeply flawed and incorrect population estimates provided by the US Government.

By 1998, the population was estimated to have increased to 2,280 (95 % CL, 1,160 — 4,500), based on sighting surveys conducted under the auspices of the International Whaling Commission (IWC) during the International Decade of Cetacean Research and Southern Ocean Whale and Ecosystem research cruises (IDCR / SOWER)[5].