MIGRATORY TIMING OF HUMPBACKWHALES (MEGAPTERA NOVAEANGLIAE) IN THE CENTRALNORTH PACIFIC VARIES WITH AGE, SEX AND REPRODUCTIVESTATUS by
Humpback whales migrate seasonally between high-latitude summer feeding grounds and low-latitude winter breeding grounds. Identi cation photographs of humpback whales were collected in the Hawaiian Islands between 1977 and 1995, and sighting histories were com-piled for individuals.Analyses revealed...
Main Authors: | , , , , , , , , , , , , |
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Other Authors: | |
Format: | Text |
Language: | English |
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.2129 http://www.dolphin-institute.org/our_research/pdf/craig_etal2003.pdf |
Summary: | Humpback whales migrate seasonally between high-latitude summer feeding grounds and low-latitude winter breeding grounds. Identi cation photographs of humpback whales were collected in the Hawaiian Islands between 1977 and 1995, and sighting histories were com-piled for individuals.Analyses revealed that (a) mean dates of rst identi cation were signif-icantly earlier for juveniles and females with no calf than for males and females with a calf off the Big Island, and signi cantly earlier for juveniles than for females with no calf, males and females with a calf off Maui; and (b) mean dates of last identi cation were signi cantly earlier for juveniles and females with no calf than for males and females with a calf off the |
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