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Why was Canada’s harp seal hunting quota reduced in 2007?

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Canada’s total allowable catch (TAC) for harp seals was reduced to 270,000 in 2007 primarily due to significant reductions in sea ice coverage in the Gulf of St. Lawrence and off the coasts of Newfoundland and Labrador.1

Because harp seals rely on this seasonal pack ice as a platform for whelping and rearing their young, the loss of ice habitat necessitated an adjustment to the harvest limits to account for these changing environmental conditions.1