de.pangaea.dataset993407 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-04-01T11:24:35Z https://doi.pangaea.de/10.1594/PANGAEA.993407 <gco:CharacterString>Whale sightings during POLARSTERN cruise PS122/4 (MOSAiC)</gco:CharacterString> 2026-04-01T11:24:34 publication Burkhardt, Elke
Elke.Burkhardt@awi.de
https://orcid.org/0000-0002-5128-4176 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Data on whale distribution and abundance in the polar oceans is rather sparse, as implementing the standard surveying method, line-transect surveys, is challenging and costly. To overcome this problem, we initiated a program to electronically log all opportunistic cetacean sightings during all Polarstern expeditions through the nautical officer on watch. Opportunistic (visual) sightings by naked eye were logged during Polarstern Cruise PS122/4 (Longyearbyen, Svalbard and Jan Mayen - Arctic Ocean) by the nautical officer on duty using a customized Software package (WALOG, WhAleLOGger) installed on a touch screen laptop located on the ship's bridge. Species were identified by naked eye or handheld binoculars (7x50) to the lowest possible taxonomical level and assigned a "certainty" level of identification. The number of animals were counted if possible or estimated for larger groups. Whenever identification to species level was not possible, the next identifiable taxonomical category was assigned. Information on sighting position, date and time are automatically transferred from the ship's DAVIS-Ship System (https://dship.awi.de/) to the WALOG software at the time of logging. Photographs were taken, if possible, for retrospective analysis. All data of acquired sightings were retrospectively validated by a marine biologist and converted to a standard format. To this end, plausibility of sighting time, location, standardization of species names, eventual comments added at the time of sighting, as well as additional information such as photographs (if available) were checked either to verify or improve species identification. Datasets are used in species distribution modelling and to inform interested parties about occurrences completed Burkhardt, Elke
Elke.Burkhardt@awi.de
https://orcid.org/0000-0002-5128-4176 information principalInvestigator Cetacean sightings WALOG theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact MAPS Marine Mammal Perimeter Surveillance from RV Polarstern MOSAiC Multidisciplinary drifting Observatory for the Study of Arctic Climate theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 9.79178 9.90657 78.48175 78.5479 2020-06-08T22:46:18 2020-06-08T23:10:11 Date/Time is given in UTC. Certainty of identification: definite if observer clearly identified the species. The number of individuals is binned according to the options given in the data acquisition software: 1, 2, 3, less equal 5, less equal 10, greater than 10, greater than 20. More precise values may exist, due to observer comments. DATE/TIME thematicClassification LATITUDE thematicClassification LONGITUDE thematicClassification Whale species thematicClassification Visual inspection Certainty of identification thematicClassification Individuals physicalMeasurement Visual inspection # # text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.993407?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: PS122/4-track * LATITUDE START: 78.234388 * LONGITUDE START: 15.622460 * LATITUDE END: 80.062920 * LONGITUDE END: -6.126250 * DATE/TIME START: 2020-06-04T06:50:00 * DATE/TIME END: 2020-08-12T10:00:00 * LOCATION: Arctic Ocean * CAMPAIGN: PS122/4 * BASIS: Polarstern * METHOD/DEVICE: Underway cruise track measurements Longyearbyen - Arctic Ocean 2020-06-04T06:50:00 Documentation <gco:CharacterString>Information for MAPS-Arctic whale sighting data (2018-12-19)</gco:CharacterString> hdl:10013/epic.00a6eec8-6a93-40d5-a628-94c3d4c0efda documentDigital