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Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks ArchiMer
Kadar, Julianna; Ladds, Monique; Mourier, Johann; Day, Joanna; Brown, Culum.
Distinguishing the factors that influence activity within a species advances understanding of their behavior and ecology. Continuous observation in the marine environment is not feasible but biotelemetry devices provide an opportunity for detailed analysis of movements and activity patterns. This study investigated the detail that calibration of accelerometers measuring root mean square (RMS) acceleration with video footage can add to understanding the activity patterns of male and female Port Jackson sharks (Heterodontus portusjacksoni) in a captive environment. Linear regression was used to relate RMS acceleration output to time‐matched behavior captured on video to quantify diel activity patterns. To validate captive data, diel patterns from captive...
Tipo: Text Palavras-chave: Accelerometer; Activity pattern; Diel cycle; Migratory restlessness; Port Jackson shark; Root mean square acceleration.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00508/61990/66104.pdf
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