Archive of the PASATA (PASsive Acoustic Tracking of Antarctic marine mammals) field documentation ...

• Main Author: Van Opzeeland, Ilse
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: File name; File type; File size; Uniform resource locator/link to file; Antarc*; Antarctic; Antarctic Ocean; Crabeater Seals; Hydrurga leptonyx; Leopard Seal; Ross Seal; Sea ice; Weddell Seal; Weddell Seals
• Online Access: https://dx.doi.org/10.1594/pangaea.861766; https://doi.pangaea.de/10.1594/PANGAEA.861766

Recordings from the PerenniAL Acoustic Observatory in the Antarctic ocean (PALAOA) show seasonal acoustic presence of 4 Antarctic ice-breeding seal species (Ross seal, Ommatophoca rossii, Weddell seal, Leptonychotes weddellii, crabeater, Lobodon carcinophaga, and leopard seal, Hydrurga leptonyx). Apart from Weddell seals, inhabiting the fast-ice in Atka Bay, the other three (pack-ice) species however have to date never (Ross and leopard seal) or only very rarely (crabeater seals) been sighted in the Atka Bay region.The aim of the PASATA project is twofold: the large passive acoustic hydrophone array (hereafter referred to as large array) aims to localize calling pack-ice pinniped species to obtain information on their location and hence the ice habitat they occupy. This large array consists of four autonomous passive acoustic recorders with a hydrophone sensor deployed through a drilled hole in the sea ice. The PASATA recordings are time-stamped and can therefore be coupled to the PALAOA recordings so that ... : All photos taken with Nikon D7000 (usually by Karo, file names start with "DSC") have a - by 1 hour - delayed time, as camera still operates in German time. ...