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HelicopterSurveysANTXXIII/8
Citatie
Marine mammal helicopter survey data ANTXXIII/8. https://marineinfo.org/id/dataset/2041
Beschikbaarheid: Vrij beschikbaar na embargo periode
Data are initially restricted, but the access condition relaxes to academic or unrestricted once a specified period of time after an event (such as collection, publication, completion of QC procedures or project cessation) has elapsed Beschrijving
During the ANT XXIII/8 cruise (November 26th 2006 to January 29th 2007) the German research vessel ‘Polarstern’ surveyed Antarctic waters from the eastern Weddell Sea to the South Shetland Islands. Helicopters on board were used to conduct dedicated surveys for cetaceans and in part pinnipeds. Helicopter surveys followed line transect distance sampling protocol flying ‘ad hoc’ survey patterns as well as pre-designed tracklines covering in total about 9000km of on effort tracklines. Environmental information was collected continuously during the surveys and included parameters such as cloud cover, sea state, glare on water and percent ice coverage. Cetacean species identified during both aerial and shipboard effort included Humpback whales, fin whales, sei whales, Antarctic minke whales, Arnoux’s Beaked Whales, Strap-toothed Whales, Gray’s Beaked whales, Southern Bottlenose Whales and Killer Whales. meer
The database consists of data entries for every four seconds. For each of these 4 second windows a range of information is given. Each entry is georeferenced with Latitude and Longitude (in decimal degrees). The following type of information is provided: 1. Effort 2. Environment 3. Sightings Thus for each 4 second segment information on the environmental conditions of that segment are provided as well as information on any sightings. Scope Thema's: Biologie > Zoogdieren Kernwoorden: Marien/Kust, Antarctic waters, Distribution, Overvloed, Zeezoogdieren, Antarctica, Aves, Cetacea, Pinnipedia Geografische spreiding Antarctica [Marine Regions] Spreiding in de tijd
1 December 2006 - 26 Januari 2007 Dagelijks Parameters
Aanwezigheid van soorten Densiteit Bijdrage door
Wageningen University and Research Centre; Institute for Marine Resources and Ecosystem Studies (IMARES), meer, data eigenaar
Dataset status: Afgelopen
Data type: Data
Data oorsprong: Onderzoek: veldexperiment
Metadatarecord aangemaakt: 2009-08-11
Informatie laatst gewijzigd: 2009-08-21
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