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Estimating the Winter Abundance of Cetaceans around the Main Hawaiian Islands
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2022
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Description:Twenty-four cetacean species (18 odontocetes and 6 mysticetes) regularly occur in the waters around the Hawaiian Islands. Abundance estimates are needed to evaluate the impacts of human activities on these species in population assessments and management plans. Most ship-based, line-transect surveys for cetaceans in Hawaiian waters have occurred during the summer−fall period, including the recurring Hawaiian Islands Cetacean and Ecosystem Assessment Survey (HICEAS) that took place in 2002, 2010, and 2017. There are no recent abundance estimates of cetaceans in Hawaiian waters during winter, when seasonally-migrating baleen whales are at peak abundance. A winter HICEAS (WHICEAS) was conducted in Jan−Mar 2020 to estimate the abundance and distribution of cetaceans around the main Hawaiian Islands during winter.
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Rights Information:Public Domain
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Compliance:Submitted
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