IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ] Printer-friendly version

DECAF - AUTEC Beaked Whales - Single Sensor case study
Citation
Kusel, E. 2013. DECAF - AUTEC Beaked Whales - Single Sensor case study. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/720) on yyyy-mm-dd.

Access data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Description
Data of sensor density estimates of beaked whales, case study. more

This case study used a single hydrophone at AUTEC to estimate density of beaked whales around the sensor, based on counts of detected beaked whale clicks. Using propagation modelling, information about the source level of the clicks and characteristics of the automatic click detector, the effective detection radius around the hydrophone was estimated. Together with information about clicking rates of beaked whales, this enabled density of beaked whales around the hydrophone to be estimated. These data were used to characterize the performance of the automatic detector. A 6-minute recording from hydrophone 57 was manually checked for beaked whale clicks. This 6-minute section was part of the main 6-day dataset used in the case study. The automatic detector was used on the same sound file, and the results compared. For each manually detected click, the signal-to-noise ratio (SNR) was calculated, the quality of the click was judged and it was noted whether or not the click was detected by the automatic detector. Time zone is GMT. Note hydrophone location is approximate. Original data can be downloaded at http://www.creem.st-and.ac.uk/decaf/decaf-data-files under Case Study 4a: Beaked whale data. The sound file can be downloaded at http://www.mobysound.org/odontocetes.html (click the 'from the Bahamas: AUTEC' under the Blainville's Beaked Whale, Mesoplodon densirostris, subheading). Sound file name: Set4-A5-092705-H57-0600-0618-1435-1453loc_filter.wav. Dataset credit = Density Estimation of Cetaceans from passive Acoustic Fixed sensors (DECAF) (http://www.creem.st-and.ac.uk/decaf/)

Scope
Themes:
Biology > Mammals
Keywords:
Marine, A, North Atlantic, Mesoplodon Gervais, 1850

Geographical coverage
A, North Atlantic [Marine Regions]

Temporal coverage
27 September 2005

Taxonomic coverage
Mesoplodon Gervais, 1850 [WoRMS]

Related datasets
Published in:
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more
Other relations:
DECAF - AUTEC Beaked whales - Multiple Sensors - Click counts, more
DECAF - AUTEC Beaked Whales - Multiple Sensors - Dtag, more
DECAF - AUTEC Beaked Whales - Multiple Sensors - DTag Seafloor array presence, more

Publication
Based on this dataset:
Küsel, E.T. et al. (2011). Cetacean population density estimation from single fixed sensors using passive acoustics. J. Acoust. Soc. Am. 129: 3610-3622. hdl.handle.net/10.1121/1.3583504, more

Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2012-11-22
Information last updated: 2016-06-30
All data in IMIS is subject to the VLIZ privacy policy