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Rafaela Landea

    Rafaela Landea

    • Raised near the sea of the long, coastal country of Chile, I have had a strong connection to the ocean since birth. While studying at high school, I trained to become a diving instructor to continue my deep engagement with the sea. I undertook an undergraduate degree in Ecotourism Management in Chile, and did my thesis on the development of ecotourism marine routes and ecological diving inside the marine protected... moreedit
    To learn more about the occurrence and behaviour of a recently discovered population of blue whales, passive acoustic data were collected between January 2012 and April 2013 in the Chiloense ecoregion of southern Chile. Automatic... more
    To learn more about the occurrence and behaviour of a recently discovered population of blue whales, passive acoustic data were collected between January 2012 and April 2013 in the Chiloense ecoregion of southern Chile. Automatic detectors and manual auditing were used to detect blue whale songs (SEP calls) and D calls, which were then analysed to gain insights into temporal calling patterns. We found that D call rates were extremely low during winter (June–August) but gradually increased in spring and summer, decreasing again later during fall. SEP calls were absent for most winter and spring months (July–November) but increased in summer and fall, peaking between March and April. Thus, our results support previous studies documenting the austral summer residency of blue whales in this region, while suggesting that some individuals stay longer, highlighting the importance of this area as a blue whale habitat. We also investigated the daily occurrence of each call type and found tha...