| Autor: |
Emma G. Longden, Douglas Gillespie, David Mann, Katherine A. McHugh, Athena M. Rycyk, Randall Wells, Peter L. Tyack |
| Přispěvatelé: |
University of St Andrews. School of Biology, University of St Andrews. Sea Mammal Research Unit, University of St Andrews. Scottish Oceans Institute, University of St Andrews. Sound Tags Group, University of St Andrews. Bioacoustics group, University of St Andrews. Marine Alliance for Science & Technology Scotland, University of St Andrews. Institute of Behavioural and Neural Sciences |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Popis: |
Funding: Mote Scientific Foundation provided funding for the initial development of PALS. P.L.T. acknowledges support by the Office of Naval Research (Grant Nos. N000142012697 and N000142112096) and the Strategic Environmental Research and Development Program (Grant Nos. RC20-1097, RC20-7188, and RC21-3091). During the COVID-19 pandemic, decreases in large vessel activity and low-frequency noise have been reported globally. Sarasota Bay is home to a large and increasing number of recreational vessels, as well as a long-term resident community of bottlenose dolphins, Tursiops truncatus. We analyzed data from two hydrophones to compare the soundscape during the COVID-19 pandemic to previous years (March–May 2020 and 2018/2019). Hourly metrics were calculated: vessel passes, 95th percentile noise levels (125 and 16 kHz Third Octave Bands (TOBs) and two broadbands: 88–1122 Hz, 1781–17959 Hz), and dolphin whistle detection, to understand changes in vessel activity and the effect on wildlife. Vessel activity increased during COVID-19 restrictions by almost 80% at one site and remained the same at the other. Changes in noise levels varied between sites. Only the 125 Hz TOB and 88–1122 Hz band increased with vessel activity at both sites, suggesting this may be an appropriate measure of noise from small vessels in very shallow ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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