Ship based cetacean survey Southern Ocean 2019 ...

• Main Authors: Viquerat, Sacha, Herr, Helena
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Antarctica; cetaceans; marine mammals; PS119; Identification; Reticulofenestra martinii; DATE/TIME; Time zone; Transect; LATITUDE; LONGITUDE; Seastate label; Wave height; Code; Cetacea; Underway cruise track measurements; Beaufort Scale; Visual observation; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Recovery status and ecology of Southern Hemisphere fin whales IWC-SORP_FIN; Antarctic; Arctic; Austral; Southern Ocean; Antarc*; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.955066; https://doi.pangaea.de/10.1594/PANGAEA.955066

This dataset was collected during PS119 during a dedicated distance sampling survey for cetaceans in the Southern Ocean conducted on board of Polarstern during the austral summer 2019 (25-04-2019 - 21-05-2019). Effort related sighting data were collected along the ship track of R/V Polarstern to infer density distribution of southern hemisphere fin whales. Surveys were conducted whenever wheather and ship operations permitted. Surveys were conducted with 2 observers and one data logger from the crow's nest at ~ 29m ASL. Positions were logged every 4 seconds using a dedicated survey software and all cetacean sightings were recorded upon detection. All changes that may impact detection probability of cetaceans were noted as described by the observers. This dataset contains all cetacean sightings recorded on track, including species, group size and effort related data including position (lat / lon) and datetime (utc format). All cetacean sightings were identified using binoculars (if possible) and comprise the ...