Whale sightings during POLARSTERN cruise PS115/1
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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2020
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.924582 https://doi.org/10.1594/PANGAEA.924582 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.924582 2023-05-15T14:27:02+02:00 Whale sightings during POLARSTERN cruise PS115/1 Burkhardt, Elke MEDIAN LATITUDE: 75.122782 * MEDIAN LONGITUDE: 5.270319 * SOUTH-BOUND LATITUDE: 70.008350 * WEST-BOUND LONGITUDE: -9.585980 * NORTH-BOUND LATITUDE: 82.259920 * EAST-BOUND LONGITUDE: 20.049420 * DATE/TIME START: 2018-08-05T16:23:00 * DATE/TIME END: 2018-09-03T04:24:00 2020-11-10 text/tab-separated-values, 30 data points https://doi.pangaea.de/10.1594/PANGAEA.924582 https://doi.org/10.1594/PANGAEA.924582 en eng PANGAEA Damm, Volkmar (2019): The Expedition PS115/1 of the Research Vessel POLARSTERN to the Greenland Sea and Wandel Sea in 2018. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 727, 186, https://doi.org/10.2312/BzPM_0727_2019 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.924582 https://doi.org/10.1594/PANGAEA.924582 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Atlantic Polarstern PS115/1 PS115/1-track Underway cruise track measurements Visual observation WALOG Whale species Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.924582 https://doi.org/10.2312/BzPM_0727_2019 2023-01-20T09:14:09Z 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 PS115/1 (Tromsø - Longyearbyen) 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 Berichte zur Polar- und Meeresforschung Longyearbyen North Atlantic Reports on Polar and Marine Research Tromsø PANGAEA - Data Publisher for Earth & Environmental Science Longyearbyen Tromsø ENVELOPE(-9.585980,20.049420,82.259920,70.008350) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Atlantic Polarstern PS115/1 PS115/1-track Underway cruise track measurements Visual observation WALOG Whale species |
spellingShingle |
Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Atlantic Polarstern PS115/1 PS115/1-track Underway cruise track measurements Visual observation WALOG Whale species Burkhardt, Elke Whale sightings during POLARSTERN cruise PS115/1 |
topic_facet |
Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Atlantic Polarstern PS115/1 PS115/1-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 PS115/1 (Tromsø - Longyearbyen) 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 PS115/1 |
title_short |
Whale sightings during POLARSTERN cruise PS115/1 |
title_full |
Whale sightings during POLARSTERN cruise PS115/1 |
title_fullStr |
Whale sightings during POLARSTERN cruise PS115/1 |
title_full_unstemmed |
Whale sightings during POLARSTERN cruise PS115/1 |
title_sort |
whale sightings during polarstern cruise ps115/1 |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.924582 https://doi.org/10.1594/PANGAEA.924582 |
op_coverage |
MEDIAN LATITUDE: 75.122782 * MEDIAN LONGITUDE: 5.270319 * SOUTH-BOUND LATITUDE: 70.008350 * WEST-BOUND LONGITUDE: -9.585980 * NORTH-BOUND LATITUDE: 82.259920 * EAST-BOUND LONGITUDE: 20.049420 * DATE/TIME START: 2018-08-05T16:23:00 * DATE/TIME END: 2018-09-03T04:24:00 |
long_lat |
ENVELOPE(-9.585980,20.049420,82.259920,70.008350) |
geographic |
Longyearbyen Tromsø |
geographic_facet |
Longyearbyen Tromsø |
genre |
Arctic Berichte zur Polar- und Meeresforschung Longyearbyen North Atlantic Reports on Polar and Marine Research Tromsø |
genre_facet |
Arctic Berichte zur Polar- und Meeresforschung Longyearbyen North Atlantic Reports on Polar and Marine Research Tromsø |
op_relation |
Damm, Volkmar (2019): The Expedition PS115/1 of the Research Vessel POLARSTERN to the Greenland Sea and Wandel Sea in 2018. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 727, 186, https://doi.org/10.2312/BzPM_0727_2019 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.924582 https://doi.org/10.1594/PANGAEA.924582 |
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.924582 https://doi.org/10.2312/BzPM_0727_2019 |
_version_ |
1766300604698722304 |