Whale sightings during POLARSTERN cruise ARK-XXIII/3
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 Polar...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.924712 https://doi.org/10.1594/PANGAEA.924712 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.924712 2023-05-15T14:23:18+02:00 Whale sightings during POLARSTERN cruise ARK-XXIII/3 Burkhardt, Elke MEDIAN LATITUDE: 73.134987 * MEDIAN LONGITUDE: -126.784170 * SOUTH-BOUND LATITUDE: 69.748920 * WEST-BOUND LONGITUDE: -137.889050 * NORTH-BOUND LATITUDE: 74.828020 * EAST-BOUND LONGITUDE: -121.231730 * DATE/TIME START: 2008-08-23T22:28:00 * DATE/TIME END: 2008-08-27T01:22:00 2020-11-12 text/tab-separated-values, 9 data points https://doi.pangaea.de/10.1594/PANGAEA.924712 https://doi.org/10.1594/PANGAEA.924712 en eng PANGAEA Jokat, Wilfried (2009): The Expedition of the Research Vessel Polarstern to the Arctic in 2008 (ARK-XXIII/3). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 597, 266 pp, https://doi.org/10.2312/BzPM_0597_2009 Information for MAPS-Arctic whale sighting data (2018-12-19) (URI: hdl:10013/epic.00a6eec8-6a93-40d5-a628-94c3d4c0efda) https://doi.pangaea.de/10.1594/PANGAEA.924712 https://doi.org/10.1594/PANGAEA.924712 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Arctic Ocean ARK-XXIII/3 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern Polarstern PS72 PS72/3-track Underway cruise track measurements Visual observation WALOG Whale species Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.924712 https://doi.org/10.2312/BzPM_0597_2009 2023-01-20T09:14:10Z 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 ARK-XXIII/3 (Reykjavik - Bremerhaven) 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. Dataset Arctic Arctic Arctic Ocean Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean ENVELOPE(-137.889050,-121.231730,74.828020,69.748920) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean ARK-XXIII/3 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern Polarstern PS72 PS72/3-track Underway cruise track measurements Visual observation WALOG Whale species |
spellingShingle |
Arctic Ocean ARK-XXIII/3 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern Polarstern PS72 PS72/3-track Underway cruise track measurements Visual observation WALOG Whale species Burkhardt, Elke Whale sightings during POLARSTERN cruise ARK-XXIII/3 |
topic_facet |
Arctic Ocean ARK-XXIII/3 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern Polarstern PS72 PS72/3-track Underway cruise track measurements Visual observation WALOG Whale species |
description |
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 ARK-XXIII/3 (Reykjavik - Bremerhaven) 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. |
format |
Dataset |
author |
Burkhardt, Elke |
author_facet |
Burkhardt, Elke |
author_sort |
Burkhardt, Elke |
title |
Whale sightings during POLARSTERN cruise ARK-XXIII/3 |
title_short |
Whale sightings during POLARSTERN cruise ARK-XXIII/3 |
title_full |
Whale sightings during POLARSTERN cruise ARK-XXIII/3 |
title_fullStr |
Whale sightings during POLARSTERN cruise ARK-XXIII/3 |
title_full_unstemmed |
Whale sightings during POLARSTERN cruise ARK-XXIII/3 |
title_sort |
whale sightings during polarstern cruise ark-xxiii/3 |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.924712 https://doi.org/10.1594/PANGAEA.924712 |
op_coverage |
MEDIAN LATITUDE: 73.134987 * MEDIAN LONGITUDE: -126.784170 * SOUTH-BOUND LATITUDE: 69.748920 * WEST-BOUND LONGITUDE: -137.889050 * NORTH-BOUND LATITUDE: 74.828020 * EAST-BOUND LONGITUDE: -121.231730 * DATE/TIME START: 2008-08-23T22:28:00 * DATE/TIME END: 2008-08-27T01:22:00 |
long_lat |
ENVELOPE(-137.889050,-121.231730,74.828020,69.748920) |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research |
genre_facet |
Arctic Arctic Arctic Ocean Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research |
op_relation |
Jokat, Wilfried (2009): The Expedition of the Research Vessel Polarstern to the Arctic in 2008 (ARK-XXIII/3). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 597, 266 pp, https://doi.org/10.2312/BzPM_0597_2009 Information for MAPS-Arctic whale sighting data (2018-12-19) (URI: hdl:10013/epic.00a6eec8-6a93-40d5-a628-94c3d4c0efda) https://doi.pangaea.de/10.1594/PANGAEA.924712 https://doi.org/10.1594/PANGAEA.924712 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.924712 https://doi.org/10.2312/BzPM_0597_2009 |
_version_ |
1766295860088406016 |