Data from: Long-term population size of the North Atlantic humpback whale within the context of worldwide population structure

Kristen Ruegg, Howard C. Rosenbaum, Eric C. Anderson, Marcia Engel, Anna Rothschild, C. Scott Baker & Stephen R. Palumbi
Once hunted to the brink of extinction, humpback whales (Megaptera novaeangliae) in the North Atlantic have recently been increasing in numbers. However, uncertain information on past abundance makes it difficult to assess the extent of the recovery in this species. While estimates of pre-exploitation abundance based upon catch data suggest the population might be approaching pre-whaling numbers, estimates based on mtDNA genetic diversity suggest they are still only a fraction of their past abundance levels....
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