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Burkhardt, Elke (2024): Whale sightings during POLARSTERN cruise PS128 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.972531

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Published: 2024-09-24DOI registered: 2024-10-23

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Abstract:
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 PS128 (Cape Town – 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.
Keyword(s):
Cetacean sightings; WALOG
Documentation:
Information for MAPS whale sighting data (2018-12-18). hdl:10013/epic.24d813e7-0158-4fc3-bc99-0f4ebb6beecc
Coverage:
Median Latitude: -65.148381 * Median Longitude: 43.358109 * South-bound Latitude: -70.704530 * West-bound Longitude: -9.449170 * North-bound Latitude: -41.026350 * East-bound Longitude: 65.876550
Date/Time Start: 2022-01-08T13:40:23 * Date/Time End: 2022-02-21T04:15:00
Event(s):
PS128-track * Latitude Start: -33.906800 * Longitude Start: 18.433700 * Latitude End: -33.906800 * Longitude End: 18.433700 * Date/Time Start: 2022-01-06T00:00:00 * Date/Time End: 2022-02-28T00:00:00 * Campaign: PS128 (EASI-1) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT) * Comment: Cape Town - Cape Town
Comment:
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.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DATE/TIMEDate/TimeBurkhardt, ElkeGeocode
LATITUDELatitudeBurkhardt, ElkeGeocode
LONGITUDELongitudeBurkhardt, ElkeGeocode
Whale speciesWhaleBurkhardt, ElkeVisual observation
Certainty of identificationCertaintyBurkhardt, Elke
IndividualsInd#Burkhardt, ElkeVisual observation
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
549 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Date/Time

Latitude

Longitude

Whale

Certainty

Ind [#]
2022-01-08T13:40:23-41.0263514.68873Large whale, unidentifieddefinite4
2022-01-08T13:46:33-41.0444314.67922Megaptera novaeangliaeprobable4
2022-01-08T13:55:52-41.0664714.66752Megaptera novaeangliaepossible2
2022-01-08T13:56:19-41.0683714.66648Megaptera novaeangliaepossible3
2022-01-08T14:57:27-41.2335814.57932Megaptera novaeangliaeprobable1
2022-01-10T14:31:43-48.9159810.23847Dolphins, unidentifieddefinite>5
2022-01-12T19:52:23-57.507534.49630Balaenoptera physalusprobable2
2022-01-13T03:59:04-58.862983.47110Megaptera novaeangliaedefinite2
2022-01-14T05:59:35-63.01810-0.33928Balaenoptera physalusprobable2
2022-01-15T15:17:15-68.16958-6.50542Whale, unidentifieddefinite1
2022-01-17T16:43:07-70.51865-7.91153Megaptera novaeangliaedefinite1
2022-01-19T06:21:19-70.06727-8.52375Balaenoptera aff. bonaerensisdefinite1
2022-01-22T19:07:11-69.43037-7.27725Balaenoptera aff. bonaerensisdefinite2
2022-01-22T19:10:59-69.42017-7.27385Megaptera novaeangliaedefinite2
2022-01-22T19:59:03-69.29285-7.22978Balaenoptera aff. bonaerensisdefinite1
2022-01-22T22:06:59-68.95252-7.11320Balaenoptera aff. bonaerensisdefinite2
2022-01-24T12:50:16-70.19107-8.04075Whale, unidentifieddefinite1
2022-01-24T18:57:07-70.70453-9.44917Whale, unidentifieddefinite2
2022-01-24T19:03:55-70.70042-9.42310Balaenoptera physalusdefinite2
2022-01-26T12:21:00-70.13631-7.27772Balaenoptera aff. bonaerensisdefinite1
2022-01-27T12:37:52-70.06070-8.33003Balaenoptera aff. bonaerensisdefinite3
2022-01-27T18:17:12-69.87502-6.04222Balaenoptera aff. bonaerensisdefinite1
2022-01-27T18:46:18-69.87610-5.81537Orcinus orcadefinite3
2022-01-28T19:35:52-69.232174.08612Balaenoptera aff. bonaerensisdefinite1
2022-01-28T23:26:24-69.056126.33022Small whale, unidentifieddefinite5
2022-01-29T19:27:20-68.6896513.98543Balaenoptera aff. bonaerensisdefinite2
2022-01-29T19:30:33-68.6885514.01278Balaenoptera aff. bonaerensisdefinite1
2022-01-30T01:24:43-68.5877216.57672Balaenoptera aff. bonaerensispossible1
2022-01-30T10:38:50-68.5156819.20757Balaenoptera aff. bonaerensisdefinite2
2022-01-30T13:00:33-68.5010220.50805Balaenoptera physalusprobable3
2022-01-30T13:14:29-68.5017820.59492Balaenoptera physalusprobable3
2022-01-30T14:47:09-68.4876321.28763Large whale, unidentifieddefinite1
2022-01-30T16:47:25-68.4736822.32660Megaptera novaeangliaeprobable2
2022-01-30T17:40:04-68.4683222.72592Baleen whale, unidentifieddefinite1
2022-02-01T05:03:12-68.1165037.08645Large whale, unidentifieddefinite4
2022-02-01T15:35:23-67.5673338.29550Large whale, unidentifieddefinite1
2022-02-02T05:27:32-67.0877245.12052Balaenoptera physalusprobable5
2022-02-02T18:02:46-67.0784045.12045Balaenoptera physalusdefinite>5
2022-02-02T23:59:42-66.3770346.73865Physeter macrocephaluspossible1
2022-02-03T01:20:17-66.2065747.22583Balaenoptera physalusdefinite3
2022-02-03T02:00:07-66.1295247.44470Balaenoptera physalusprobable3
2022-02-03T02:16:08-66.1024547.52162Balaenoptera physalusprobable3
2022-02-03T02:41:40-66.0516747.66008Balaenoptera physalusprobable2
2022-02-03T03:32:42-65.9394747.92653Balaenoptera physaluspossible3
2022-02-03T03:45:23-65.9131347.98870Balaenoptera physaluspossible2
2022-02-03T03:47:58-65.9071848.00258Balaenoptera physalusprobable5
2022-02-03T05:49:26-65.6323348.64863Balaenoptera physalusprobable>5
2022-02-03T06:04:59-65.5964248.73260Megaptera novaeangliaedefinite1
2022-02-03T10:32:45-65.4169849.28908Balaenoptera physalusprobable3
2022-02-03T11:52:47-65.3912849.93950Balaenoptera physalusprobable2
2022-02-03T12:06:16-65.3884250.01032Balaenoptera physalusprobable2
2022-02-03T12:20:20-65.3851350.09178Balaenoptera physalusdefinite2
2022-02-03T12:28:35-65.3829750.15292Balaenoptera physaluspossible2
2022-02-03T12:34:40-65.3794850.23492Megaptera novaeangliaedefinite3
2022-02-03T12:48:56-65.3769550.29963Balaenoptera physaluspossible3
2022-02-03T13:02:16-65.3733250.39377Balaenoptera physalusdefinite3
2022-02-03T13:09:42-65.3695750.48698Balaenoptera physalusdefinite1
2022-02-03T13:15:46-65.3655350.58938Megaptera novaeangliaeprobable2
2022-02-03T13:30:35-65.3655050.59005Balaenoptera physalusdefinite3
2022-02-03T13:39:26-65.3631350.64975Megaptera novaeangliaedefinite2
2022-02-03T13:40:58-65.3626750.65990Megaptera novaeangliaedefinite2
2022-02-03T13:41:05-65.3626550.66045Megaptera novaeangliaedefinite2
2022-02-03T13:41:10-65.3626250.66112Megaptera novaeangliaedefinite2
2022-02-03T14:13:51-65.3608250.88120Balaenoptera physalusdefinite2
2022-02-03T14:35:01-65.3484551.02328Balaenoptera physalusdefinite2
2022-02-03T15:02:07-65.3411551.20510Balaenoptera physalusprobable2
2022-02-03T15:47:57-65.3286851.52015Balaenoptera physalusprobable1
2022-02-03T16:43:10-65.3135251.90502Balaenoptera physaluspossible1
2022-02-03T17:45:38-65.3054052.33748Whale, unidentifieddefinite1
2022-02-03T17:53:08-65.3028752.38842Balaenoptera physalusprobable4
2022-02-03T18:29:50-65.2859752.63930Balaenoptera physalusdefinite1
2022-02-03T18:54:08-65.2776752.80892Balaenoptera physalusdefinite2
2022-02-03T18:56:18-65.2770352.82480Megaptera novaeangliaedefinite2
2022-02-03T23:26:05-65.2029854.68928Megaptera novaeangliaepossible2
2022-02-06T12:17:41-65.6392763.57942Megaptera novaeangliaepossible1
2022-02-08T01:12:30-65.9522264.19215Balaenoptera physaluspossible2
2022-02-08T02:48:38-66.0441564.78443Balaenoptera physaluspossible1
2022-02-08T12:43:03-66.3970565.51952Balaenoptera physaluspossible2
2022-02-08T14:04:27-66.4092865.16297Balaenoptera physaluspossible2
2022-02-08T14:04:35-66.4094365.16247Balaenoptera physaluspossible2
2022-02-08T20:54:10-67.0396865.87655Orcinus orcadefinite>5
2022-02-09T00:56:15-67.3068865.76525Orcinus orcadefinite2
2022-02-09T04:01:02-67.1469765.84470Orcinus orcadefinite>5
2022-02-10T05:34:11-66.9998564.94987Orcinus orcadefinite4
2022-02-10T05:41:38-66.9963064.91308Orcinus orcadefinite>20
2022-02-11T00:46:50-66.6339062.34147Orcinus orcadefinite3
2022-02-11T02:11:25-66.5708861.79090Balaenoptera physaluspossible2
2022-02-11T04:34:13-66.4180561.25618Balaenoptera physaluspossible2
2022-02-11T04:55:29-66.3917761.19720Balaenoptera physalusprobable2
2022-02-11T05:31:16-66.3609261.07850Megaptera novaeangliaeprobable1
2022-02-11T09:13:53-66.4311561.28570Balaenoptera physalusdefinite1
2022-02-11T09:16:20-66.4259261.27395Balaenoptera physalusdefinite3
2022-02-11T09:51:15-66.4012061.21813Balaenoptera physalusdefinite4
2022-02-11T16:30:04-66.3167360.61653Balaenoptera physalusprobable1
2022-02-13T00:21:18-65.3503258.20482Megaptera novaeangliaedefinite1
2022-02-13T01:01:40-65.3524257.92157Megaptera novaeangliaedefinite2
2022-02-13T09:18:57-65.3639054.43323Balaenoptera physalusprobable2
2022-02-13T12:10:07-65.5204752.88012Megaptera novaeangliaedefinite>10
2022-02-13T12:20:12-65.5332052.78872Megaptera novaeangliaedefinite3
2022-02-13T12:31:25-65.5471852.68815Balaenoptera physalusprobable3
2022-02-13T13:13:48-65.5995552.31137Balaenoptera physalusprobable3
2022-02-13T13:15:05-65.6013252.29793Balaenoptera physaluspossible>10
2022-02-13T13:19:30-65.6045552.25837Megaptera novaeangliaedefinite2
2022-02-13T13:47:27-65.6422552.00252Balaenoptera physalusdefinite3
2022-02-13T13:48:49-65.6449751.98292Megaptera novaeangliaeprobable1
2022-02-13T13:51:01-65.6475551.96555Megaptera novaeangliaedefinite1
2022-02-13T14:09:25-65.6702251.80220Megaptera novaeangliaepossible2
2022-02-13T14:11:39-65.6727051.78275Megaptera novaeangliaepossible1
2022-02-13T14:17:44-65.6790551.72850Balaenoptera physaluspossible4
2022-02-13T14:20:08-65.6824051.70748Balaenoptera physaluspossible3
2022-02-13T14:40:49-65.7080551.52080Megaptera novaeangliaedefinite5
2022-02-13T15:08:29-65.7378351.28710Balaenoptera physaluspossible2
2022-02-13T15:12:52-65.7430851.25065Balaenoptera physaluspossible3
2022-02-13T15:23:35-65.7570051.16000Balaenoptera physalusdefinite1
2022-02-13T15:26:57-65.7612051.13202Megaptera novaeangliaepossible1
2022-02-13T15:48:23-65.7871050.95607Balaenoptera physalusprobable1
2022-02-13T16:26:02-65.8307350.63738Balaenoptera physalusdefinite2
2022-02-13T17:18:14-65.8958350.19997Balaenoptera physaluspossible3
2022-02-13T17:20:44-65.9007050.18112Megaptera novaeangliaedefinite3
2022-02-14T00:20:00-66.7183746.93012Megaptera novaeangliaedefinite2
2022-02-14T01:49:27-66.8821546.26368Megaptera novaeangliaedefinite2
2022-02-14T01:54:10-66.8916246.22583Balaenoptera physaluspossible2
2022-02-14T02:19:21-66.9559046.05438Megaptera novaeangliaeprobable1
2022-02-14T02:27:40-66.9808846.00832Megaptera novaeangliaepossible1
2022-02-14T02:45:51-67.0357545.90543Megaptera novaeangliaepossible1
2022-02-14T03:05:40-67.0961545.79383Megaptera novaeangliaeprobable1
2022-02-15T01:05:16-66.2750248.48958Megaptera novaeangliaedefinite2
2022-02-15T01:27:07-66.2450748.65012Megaptera novaeangliaepossible2
2022-02-15T01:31:26-66.2464248.68413Megaptera novaeangliaepossible2
2022-02-15T01:41:45-66.2515348.74423Balaenoptera physalusprobable4
2022-02-15T03:56:44-66.2128048.82957Balaenoptera physalusprobable2
2022-02-15T04:00:13-66.2065848.84688Megaptera novaeangliaepossible3
2022-02-15T04:03:51-66.1999248.86503Balaenoptera physalusdefinite3
2022-02-15T04:11:58-66.1864248.90215Small whale, unidentifieddefinite5
2022-02-15T04:12:49-66.1852248.90525Balaenoptera physaluspossible3
2022-02-15T05:08:59-66.1093749.30962Megaptera novaeangliaepossible1
2022-02-15T05:18:36-66.1179849.38872Megaptera novaeangliaepossible3
2022-02-15T10:17:05-65.8216350.85180Megaptera novaeangliaeprobable2
2022-02-15T11:21:12-65.7357251.17817Balaenoptera physalusdefinite4
2022-02-15T11:41:19-65.6966251.29717Balaenoptera physalusdefinite2
2022-02-15T11:50:09-65.6863851.37343Balaenoptera physalusprobable3
2022-02-15T11:53:23-65.6849851.42073Megaptera novaeangliaedefinite2
2022-02-15T12:14:11-65.6803251.55920Megaptera novaeangliaedefinite3
2022-02-15T12:24:02-65.6656051.62922Megaptera novaeangliaedefinite2
2022-02-15T12:24:11-65.6653551.63025Balaenoptera physalusprobable1
2022-02-15T12:27:20-65.6607751.65515Megaptera novaeangliaedefinite>10
2022-02-15T12:41:53-65.6479051.76190Megaptera novaeangliaedefinite>10
2022-02-15T12:48:20-65.6371251.80735Megaptera novaeangliaedefinite2
2022-02-15T12:52:45-65.6340551.84215Megaptera novaeangliaedefinite3
2022-02-15T12:59:58-65.6312251.90140Orcinus orcadefinite5
2022-02-15T13:05:39-65.6294051.94813Balaenoptera physalusdefinite1
2022-02-15T13:24:55-65.6142052.10463Megaptera novaeangliaedefinite3
2022-02-15T13:28:02-65.6093252.12787Megaptera novaeangliaedefinite1
2022-02-15T13:46:34-65.5733252.25620Megaptera novaeangliaedefinite2
2022-02-15T14:24:03-65.5337752.57627Whale, unidentifieddefinite1
2022-02-15T15:00:12-65.4836752.81715Balaenoptera physaluspossible3
2022-02-15T15:21:59-65.4630552.98320Megaptera novaeangliaedefinite>5
2022-02-15T15:26:36-65.4672353.02182Megaptera novaeangliaedefinite>5
2022-02-15T16:54:04-65.3987553.73487Balaenoptera physaluspossible2
2022-02-15T16:59:52-65.3890253.78038Large whale, unidentifieddefinite4
2022-02-15T17:32:16-65.3745354.03988Large whale, unidentifieddefinite1
2022-02-15T23:34:20-65.2647057.09455Megaptera novaeangliaepossible2
2022-02-16T01:15:10-65.2176057.89512Megaptera novaeangliaeprobable2
2022-02-16T01:31:25-65.2113058.05397Megaptera novaeangliaepossible2
2022-02-16T01:34:15-65.2112758.05523Balaenoptera physaluspossible2
2022-02-16T03:31:35-65.1321858.92058Megaptera novaeangliaeprobable1
2022-02-16T12:38:22-65.1265059.38020Megaptera novaeangliaedefinite1
2022-02-16T16:22:05-65.1267359.38100Balaenoptera physalusprobable1
2022-02-17T01:20:02-64.5063359.14290Megaptera novaeangliaedefinite2
2022-02-18T03:26:41-63.5069752.58543Small whale, unidentifieddefinite1
2022-02-18T04:35:49-63.4298252.17772Eubalaena australisdefinite1
2022-02-18T04:40:41-63.4236752.14478Balaenoptera borealispossible1
2022-02-18T05:02:15-63.3986352.01487Balaenoptera borealispossible1
2022-02-18T05:05:38-63.3946351.99377Megaptera novaeangliaedefinite2
2022-02-18T09:43:32-63.0568550.31437Balaenoptera physalusdefinite2
2022-02-18T13:36:01-62.7476348.88568Balaenoptera physalusdefinite4
2022-02-18T13:51:42-62.7410248.85713Large whale, unidentifieddefinite1
2022-02-19T07:26:13-61.1571342.73788Balaenoptera physalusdefinite2
2022-02-19T10:00:21-60.8792741.81802Balaenoptera physalusdefinite5
2022-02-19T11:04:50-60.7492541.39822Balaenoptera physalusdefinite2
2022-02-19T11:28:26-60.5844240.87940Balaenoptera physalusdefinite2
2022-02-20T12:36:55-58.1526834.31087Megaptera novaeangliaeprobable2
2022-02-21T04:15:00-56.3907530.48478Megaptera novaeangliaedefinite2