Whale sightings during POLARSTERN cruise PS110 (ANT-XXXIII/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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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.932459 2023-05-15T15:42:16+02:00 Whale sightings during POLARSTERN cruise PS110 (ANT-XXXIII/1) Burkhardt, Elke MEDIAN LATITUDE: -17.159190 * MEDIAN LONGITUDE: 1.423673 * SOUTH-BOUND LATITUDE: -33.848470 * WEST-BOUND LONGITUDE: -17.761880 * NORTH-BOUND LATITUDE: 5.923630 * EAST-BOUND LONGITUDE: 18.286770 * DATE/TIME START: 2018-01-02T18:23:07 * DATE/TIME END: 2018-01-14T05:38:04 2021-06-10 text/tab-separated-values, 9 data points https://doi.pangaea.de/10.1594/PANGAEA.932459 https://doi.org/10.1594/PANGAEA.932459 en eng PANGAEA Information for MAPS whale sighting data (2018-12-18) (URI: hdl:10013/epic.24d813e7-0158-4fc3-bc99-0f4ebb6beecc) Niessen, Frank (2019): The Expedition PS110 of the Research Vessel POLARSTERN to the Atlantic Ocean in 2017/2018. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 730, 26 pp, https://doi.org/10.2312/BzPM_0730_2019 https://doi.pangaea.de/10.1594/PANGAEA.932459 https://doi.org/10.1594/PANGAEA.932459 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven ANT-XXXIII/1 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Sea Polarstern PS110 PS110-track Underway cruise track measurements Visual observation WALOG Whale species Dataset 2021 ftpangaea https://doi.org/10.1594/PANGAEA.932459 https://doi.org/10.2312/BzPM_0730_2019 2023-01-20T09:15:00Z 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 PS110 (Bremerhaven – Cape Town) 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 Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-17.761880,18.286770,5.923630,-33.848470) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ANT-XXXIII/1 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Sea Polarstern PS110 PS110-track Underway cruise track measurements Visual observation WALOG Whale species |
spellingShingle |
ANT-XXXIII/1 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Sea Polarstern PS110 PS110-track Underway cruise track measurements Visual observation WALOG Whale species Burkhardt, Elke Whale sightings during POLARSTERN cruise PS110 (ANT-XXXIII/1) |
topic_facet |
ANT-XXXIII/1 Certainty of identification Cetacean sightings CT DATE/TIME Individuals LATITUDE LONGITUDE MAPS Marine Mammal Perimeter Surveillance from RV Polarstern North Sea Polarstern PS110 PS110-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 PS110 (Bremerhaven – Cape Town) 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 PS110 (ANT-XXXIII/1) |
title_short |
Whale sightings during POLARSTERN cruise PS110 (ANT-XXXIII/1) |
title_full |
Whale sightings during POLARSTERN cruise PS110 (ANT-XXXIII/1) |
title_fullStr |
Whale sightings during POLARSTERN cruise PS110 (ANT-XXXIII/1) |
title_full_unstemmed |
Whale sightings during POLARSTERN cruise PS110 (ANT-XXXIII/1) |
title_sort |
whale sightings during polarstern cruise ps110 (ant-xxxiii/1) |
publisher |
PANGAEA |
publishDate |
2021 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.932459 https://doi.org/10.1594/PANGAEA.932459 |
op_coverage |
MEDIAN LATITUDE: -17.159190 * MEDIAN LONGITUDE: 1.423673 * SOUTH-BOUND LATITUDE: -33.848470 * WEST-BOUND LONGITUDE: -17.761880 * NORTH-BOUND LATITUDE: 5.923630 * EAST-BOUND LONGITUDE: 18.286770 * DATE/TIME START: 2018-01-02T18:23:07 * DATE/TIME END: 2018-01-14T05:38:04 |
long_lat |
ENVELOPE(-17.761880,18.286770,5.923630,-33.848470) |
genre |
Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research |
genre_facet |
Berichte zur Polar- und Meeresforschung Reports on Polar and Marine Research |
op_source |
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven |
op_relation |
Information for MAPS whale sighting data (2018-12-18) (URI: hdl:10013/epic.24d813e7-0158-4fc3-bc99-0f4ebb6beecc) Niessen, Frank (2019): The Expedition PS110 of the Research Vessel POLARSTERN to the Atlantic Ocean in 2017/2018. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 730, 26 pp, https://doi.org/10.2312/BzPM_0730_2019 https://doi.pangaea.de/10.1594/PANGAEA.932459 https://doi.org/10.1594/PANGAEA.932459 |
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.932459 https://doi.org/10.2312/BzPM_0730_2019 |
_version_ |
1766375332312514560 |