Herr, Helena; Viquerat, Sacha (2023): Aerial cetacean survey Southern Ocean 2018 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955068
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Abstract:
This dataset was collected during PS112 during a dedicated distance sampling survey for cetaceans in the Southern Ocean conducted on board of Polarstern during the austral summer 2018 (23-03-2018 - 24-04-2018). Effort related sighting data were collected en-route using helicopter flights planned ad-hoc based on the current position of R/V Polarstern to infer density distribution of southern hemisphere fin whales. Surveys were conducted whenever wheather and ship operations permitted. One observer was seated on the port side of the helicopter and the data recorder was seated in the copilot seat on the port side. Positions were logged every 4 seconds using a dedicated survey software and all cetacean sightings were recorded upon detection. All changes that may impact detection probability of cetaceans were noted as described by the observers. Surveys were conducted at an altitude of 600ft at 100 kts and seastates less than 3 Bft.
This dataset contains all cetacean sightings recorded on track, including species, group size and effort related data including position (lat / lon) and datetime (utc format). All cetacean sightings were confirmed if possible (pending on fuel limitations and accessibility of the cetacean group) and comprise the number of animals in the group. Groups were defined as animals in close proximity at no more than two body lengths apart (not to be compared with e.g. acoustic groups that may stretch across hundreds of kilometers).
This data has been used in a number of publications and results of these analysis has been mentioned in various media outlets.
Related to:
Herr, Helena; Viquerat, Sacha; Devas, Fredi; Lees, Abigail; Wells, Lucy; Gregory, Bertie; Giffords, Ted; Beecham, Dan; Meyer, Bettina (2022): Return of large fin whale feeding aggregations to historical whaling grounds in the Southern Ocean. Scientific Reports, 12(1), 9458, https://doi.org/10.1038/s41598-022-13798-7
Herr, Helena; Viquerat, Sacha; Naujocks, Tobias; Gregory, Bertie; Lees, Abigail; Devas, Fredi (2023): Skin condition of fin whales at Antarctic feeding grounds reveals little evidence for anthropogenic impacts and high prevalence of cookiecutter shark bite lesions. Marine Mammal Science, 39(1), 299-310, https://doi.org/10.1111/mms.12966
Viquerat, Sacha; Waluda, Claire M; Kennedy, Amy; Jackson, Jen; Hevia, Marta; Carroll, Emma L; Buss, Danielle L; Burkhardt, Elke; Thain, Scott; Smith, Patrick; Secchi, Eduardo R; Santora, Jarrod A; Reiss, Christian S; Lindstrøm, Ulf; Krafft, Bjørn A; Gittins, George; Dalla, Luciano; Biuw, Martin; Herr, Helena (2022): Identifying seasonal distribution patterns of fin whales across the Scotia Sea and the Antarctic Peninsula region using a novel approach combining habitat suitability models and ensemble learning methods. Frontiers in Marine Science, 9, 1040512, https://doi.org/10.3389/fmars.2022.1040512
Documentation:
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -62.104065 * Median Longitude: -57.468409 * South-bound Latitude: -64.272194 * West-bound Longitude: -62.739468 * North-bound Latitude: -60.490635 * East-bound Longitude: -53.791412
Date/Time Start: 2018-03-23T18:16:00 * Date/Time End: 2018-04-24T14:07:00
Event(s):
PS112_HELI_20180323 * Latitude Start: -62.237766 * Longitude Start: -57.953148 * Latitude End: -62.250290 * Longitude End: -57.999832 * Date/Time Start: 2018-03-23T18:16:00 * Date/Time End: 2018-03-23T19:58:00 * Campaign: PS112 (ANT-XXXIII/3) * Basis: Polarstern * Method/Device: Helicopter (HELI)
PS112_HELI_20180324 * Latitude Start: -62.322884 * Longitude Start: -58.285767 * Latitude End: -62.303635 * Longitude End: -58.319103 * Date/Time Start: 2018-03-24T11:32:00 * Date/Time End: 2018-03-24T13:15:00 * Campaign: PS112 (ANT-XXXIII/3) * Basis: Polarstern * Method/Device: Helicopter (HELI)
PS112_HELI_20180329 * Latitude Start: -62.983559 * Longitude Start: -60.490372 * Latitude End: -62.999352 * Longitude End: -60.504639 * Date/Time Start: 2018-03-29T13:59:00 * Date/Time End: 2018-03-29T15:26:00 * Campaign: PS112 (ANT-XXXIII/3) * Basis: Polarstern * Method/Device: Helicopter (HELI)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Viquerat, Sacha | |||
| 2 | Identification | ID | Viquerat, Sacha | consecutive id | ||
| 3 | Reticulofenestra martinii | R. martinii | Viquerat, Sacha | |||
| 4 | DATE/TIME | Date/Time | Viquerat, Sacha | Geocode – UTC | ||
| 5 | Time zone | TZ | Viquerat, Sacha | |||
| 6 | Transect | Transect | Viquerat, Sacha | |||
| 7 | LATITUDE | Latitude | Viquerat, Sacha | Geocode – WGS84 (epsg:4326) | ||
| 8 | LONGITUDE | Longitude | Viquerat, Sacha | Geocode – WGS84 (epsg:4326) | ||
| 9 | Seastate label | Seastate | Viquerat, Sacha | Beaufort Scale | ||
| 10 | Code | Code | Viquerat, Sacha | Visual observation | Observation: see legend | |
| 11 | Cetacea | Cetacea | # | Viquerat, Sacha | Visual observation | group size of sighting |
| 12 | Cetacea, juvenile | Cetacea juv | # | Viquerat, Sacha | Visual observation | number of calves, if any |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
99737 data points
Download Data
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