Figure 6 | Scientific Reports

Figure 6

From: Tidal effects on periodical variations in the occurrence of singing humpback whales in coastal waters of Chichijima Island, Ogasawara, Japan

Figure 6

Relationships between the mean number of detected singers and the time lag from low tide on the west side of Chichijima Island. The x-axis shows the time lag from the low tide to the next low tide. The high tide time is 6 to 7 h after the low tide time. The scale of the smoothing effect is shown on the y-axis. A value greater than zero on the y-axis indicates a positive effect on the occurrence of singers, and a value less than zero indicates a negative effect on the occurrence of singers. The shaded area shows the 95th percentile confidence band around the smooth function.

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