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Alaska Department of Fish and Game


Sperm Whale (Physeter macrocephalus)
Critical Habitat

In compliance with the Endangered Species Act (ESA), the National Marine Fisheries Service (NMFS) and U.S. Fish and Wildlife Service (USFWS) must designate critical habitat for each species under its jurisdiction listed under the ESA. Critical habitat is defined as “specific areas within the geographical area occupied by the species at the time of listing, if they contain physical or biological features essential to conservations, and those features may require special management considerations for protection” and “specific areas outside the geographical area occupied by the species if the agency determines that the area itself is essential for conservation.”

There is no critical habitat designated for the sperm whale. This is not in violation of the ESA as it is not required to designate critical habitat for species listed before 1978.

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