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4 results for “boat speed”
Data from: Harbour porpoises respond to small boats by speeding up and moving away
<p>Recreational boats are common in many coastal waters, yet their effects on cetaceans and other sensitive marine species remain poorly understood. To address this knowledge gap, we used drone videos to quantify how harbour porpoises (<em>Phocoena phocoena</em>) responded to a small motorboat approaching at different speeds (10 or 20 knots). The experiment was carried out in shallow waters near Funen, Denmark (55.51° N, 10.79° E) between July and September 2022. Porpoises moved further away from the boat path during approaches at both boat speeds. In addition, porpoises swam faster when approached at 20 knots but not when approached at 10 knots, and they had a higher likelihood of moving away from the boat path when approached at 10 knots but not at 20 knots. Importantly, the received sound level did not depend on how fast the boat approached, suggesting that differences in porpoise responses were related to the speed of the boat's approach rather than to sound itself. The porpoises' behaviour during the minute where the boat was closest did not differ from their behaviour before boat exposure, indicating that the direct impact of small vessels on porpoise behaviour was most likely small. Nevertheless, repeated exposure to noise from small vessels could influence porpoises' foraging efforts and cause them to relocate from disturbed areas. The approach used in this study increases our understanding of recreational boats' impact on harbour porpoises and can be used to inform efficient mitigation measures to help conservation efforts.</p>
Mean boat speed over the new NW Mediterranean PSSA on the UNEP-MAP Knowledge Management Platform
<p>This video was created to represent on KMaP (<a href="https://kmap.info-rac.org/">https://kmap.info-rac.org/</a>) mean boat speed during 2023 summer, extrapolated from AIS data taken from NETCCOBAMS (<a href="https://accobams.org/">https://accobams.org/</a>) over 1km square cells grid covering the entire <a href="https://wwwcdn.imo.org/localresources/en/KnowledgeCentre/IndexofIMOResolutions/MEPCDocuments/MEPC.380%2880%29.pdf">new PSSA</a> (Particularly Sensitive Sea Area). The purpose of the video is to showcase the variation of the mean speed of all the boats travelling through each cell of the grid on weekly basis, from the 5th of June to the 2nd of September 2023 and represents a starting point to simulate how AIS data could be used to monitor cetacean-boats strike risk.</p>
Data from: Harbour porpoises respond to small boats by speeding up and moving away
Open the record for dataset details and reuse information.
Human Impact Exposure Onboard High-Speed Boats
ClinicalTrials.gov study NCT05299736. IPD Sharing: NO. Countries: 1. Publications: 2.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.