Number of sightings of humpback whales which were observed in three different sighting areas (Ogasawara, Amami, and Okinawa) in the different years.
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Number of sightings of humpback whales which were observed in three different sighting areas (Ogasawara, Amami, and Okinawa) in the different years.
创建时间：
2022-11-17
