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Long-term individual identification surveys conducted since 1994 provide age information and estimated parturition periods for Indo-Pacific bottlenose dolphins (Tursiops aduncus) around Mikura Island, Japan. The dataset, compiled by author Genfu Yagi, includes actual birth years from tracking and estimated ages from speckle pattern and epigenetic clock analyses. Estimated parturition periods were inferred from intervals between a mother's last solitary observation and first observation with a calf.
The dataset is very small (14.9 KB), indicating limited scope.