NOVANA: The National Programme for Monitoring the Aquatic Environment and Nature: Cetacean passive acoustic sensor network. [Det Nationale Program for Overvågning af Vandmiljøet og Naturen]
Citation
Aarhus University (AU), Denmark; (2026): NOVANA: The National Programme for Monitoring the Aquatic Environment and Nature: Cetacean passive acoustic sensor network. https://marineinfo.org/doc/dataset/9050
Availability:
This dataset is licensed under a Creative Commons Attribution 4.0 International License.Description
As part of the NOVANA monitoring project (novana.au.dk), C-POD data loggers (Chelonia Limited) have been deployed in Inner Danish Waters since 2004 to monitor the presence of harbour porpoises (Phocoena phocoena). Denmark's three most numerous marine mammals are the harbour seal, the grey seal and the harbour porpoise. All three species are protected in Denmark and under the EU Habitats Directive. Harbour porpoises and both seal species are mentioned in the Habitats Directive's annex lists of species in need of protection. Protected areas, so-called habitat areas under Natura 2000, have been designated for all three species. Harbour porpoises must also be protected throughout their entire range, and seal species may require additional management measures if monitoring shows that their range and numbers are declining. In Danish waters, there are also large permanent populations of white-beaked dolphins and minke whales in the Danish part of the northern North Sea and Skagerrak, smaller groups of bottlenose dolphins scattered in Danish waters and individual groups of killer whales, primarily in Skagerrak. All whale species must be protected throughout their entire range. Scope Themes: Biology, Biology > Acoustics, Biology > Mammals, Physical > Underwater acoustics Keywords: Marine/Coastal · Acoustic arrays · Acoustic data · Acoustic devices · C-PODs · F-PODs · Hydrophones · Marine mammals · Passive acoustic monitoring (PAM) · Underwater Acoustics · Danish Internal Waters · Phocoena phocoena (Linnaeus, 1758) Geographical coverage Danish Internal Waters [Marine Regions] Temporal coverage
2004 - 2027 Taxonomic coverage
Phocoena phocoena (Linnaeus, 1758) [WoRMS]
Parameters
click train detections translated to acoustic presence absence data per minute Methodology
Milliseconds= duration of clicks Methodology Number_clicks_filtered = total number of harbour porpoise clicks Methodology Number_clicks_total = total number of clicks recorded, regardless of origin Methodology click train detections translated to acoustic presence absence data per minute: Hydrophone underwater recordings Milliseconds= duration of clicks: Hydrophone underwater recordings Number_clicks_filtered = total number of harbour porpoise clicks: Hydrophone underwater recordings Number_clicks_total = total number of clicks recorded, regardless of origin: Hydrophone underwater recordings
URLs
Institute home page: Dataset status: In Progress
Data type: Data
Data origin: Research: field experiment
Metadatarecord created: 2026-04-09
Information last updated: 2026-04-17
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