. Cetaceans of the Channel Islands National Marine Sanctuary. Cetacea; Mammals. Modern whaling, from shore stations and pelagic fleets, took a heavy toll on all stocks ot humpback whales. An estimated plus humpback whales were killed m the North Pacific between 1905 and 1925, including at least from the Mexican and Hawaiian stocks, taken in the following areas and approximate numbers: western Alaska 1,821: central .Alaska ;: Southeast Alaska 529: British Columbia : Washington and Oregon : California 5,377; and Baja California 2,042. There is no reliable estimate of
. Cetaceans of the Channel Islands National Marine Sanctuary. Cetacea; Mammals. Modern whaling, from shore stations and pelagic fleets, took a heavy toll on all stocks ot humpback whales. An estimated plus humpback whales were killed m the North Pacific between 1905 and 1925, including at least from the Mexican and Hawaiian stocks, taken in the following areas and approximate numbers: western Alaska 1,821: central .Alaska ;: Southeast Alaska 529: British Columbia : Washington and Oregon : California 5,377; and Baja California 2,042. There is no reliable estimate of the size of stocks or populations at the end ot the 1965 whaling season, when humpback whales received complete protection. However, it is clear that popula- tions everywhere were severely depressed. The severity' ot the over- whaling in the North Pacitic is best seen in the Asian stock, in which whales apparently continue to be scarce on the wintering grounds even after 20 years of protection. It is equally clear, however, that humpbacks in many areas are. at present, recovering under tull protection. For example, between 1977 and 1982 over 1,000 humpbacks were indi- vidually identified on the Hawaiian wintering grounds alone and most researchers actively studying this species in the North Pacific believe that there are well over animals in the northeastern Pacific and that the population is growing at a healthv rate. In that broad area, humpbacks range trom the Bering Sea south to Hawaii, to the tip of Baja California, into the Sea of Cortez at least as far as Espiritu Santu Island, and along the mainland coast of Mexico at least as far as Islas Tres Manas. Migration routes among these "grounds" are not yet clearly delineated, but photo-identification studies have shown that humpbacks that winter in Hawaii travel to feeding grounds off Southeast Alaska, south central Alaska and British Columbia, and that some individual whales winter in Hawaii and Mexico in di
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Keywords: ., bookcentury1900, bookcoll, booksubjectcetacea, booksubjectmammals
