Spectrograms of singing humpback whales migrating through Bermuda ...

• Main Authors: Narganes Homfeldt, Tamara, Risch, Denise, Stevenson, Andrew, Henry, Lea-Anne
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Bermuda; humpback whale; passive acoustic monitoring; song; spectrogram; Event label; Binary Object; Binary Object File Size; Passive Acoustic Monitoring System; Whales_Bermuda; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time iAtlantic; Humpback Whale; Megaptera novaeangliae
• Online Access: https://dx.doi.org/10.1594/pangaea.946517; https://doi.pangaea.de/10.1594/PANGAEA.946517

The dataset consists of 14 spectrograms of humpback whale (Megaptera novaeangliae) vocalisations. These were created from 29-minute-long recordings off Bermuda using three separate deployments of Autonomous Multichannel Acoustic Recorders G3. Two hydrophones were deployed on Challenger Bank, from 31 March to 6 September 2018 and from 10 September 2018 to 23 April 2019. The third hydrophone was deployed at Sally Tuckers on the Bermuda Platform from 31 March to 10 September 2018. Vocalisations were visualised and analysed as spectrograms (fast Fourier transformation size: 2048 points, 75% overlap, sample rate = 16000 Hz, Hann window, frequency resolution: 7.8 Hz, time resolution: 32 ms), produced using Raven Pro 1.6 sound analysis software. Six of the 14 spectrograms in the dataset illustrate the first and last times that humpback whales were acoustically detected during each deployment. The four spectrograms from Challenger Bank are from the first deployment date (31 March 2018), 18 May 2018, 26 December 2018 ...