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DECAF - PMFR Minke Whales - Multiple Sensor - Automated Boing Detections
Citation
Martin, S. 2011. DECAF - PMFR Minke Whales - Multiple Sensor - Automated Boing Detections. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/668) on yyyy-mm-dd.

Access data

Other online datasets:
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Description
This dataset used multiple hydrophones at PMRF, Kauai, Hawaii, to detect minke whale boing vocalizations. The entire recorded data was processed by the Marine mammal monitoring on Navy Ranges (M3R) system which results in these automated boing detections. Boing density estimation was estimated utilizing both these automated boing detections across the entire 167 hr data set in conjunction with an analysis of a sampled sub-set of this data for boing associations (data set 664). In order to estimate density of whales, the average boing rate of a minke whale is required. more

The recordings used for the main case study came from 12 separate days in 2006, each with ~14 hours of recordings for a total of ~ 167 hours of data. The days were: Feb 5, 21 and 25; Mar 5, 9, 13, 17, 25, and 29; and April 2, 6 and 18. An automatic detector (see Mellinger ref) was run on the whole dataset, across all hydrophones. The DECAF minke study ended up utilizing 14 of the northern hydrophones from the instrumented range at the Pacific Missile Range Facility located off the North West part of Kauai, Hawaii. The DECAF minke study initially utilized the 16 northern hydrophones of the BSURE range at PMRF. The sixteen hydrophones are designated 44-51 and 53-60. The two southernmost hydrophones were not utilized in the full data set analysis due to issues with the number of detections relative to the other hydrophones. It is unclear if the lower detection rate is due to lower density of animals closer to shore in shallower water, or due to other effects such as higher noise levels from Humpback whale song, or the sloped bathymetry at the southern phones. These hydrophones provide suitable bandwidth for detection of the minke boing vocalization with primary energy around 1,400 Hz. Times are in GMT. Hydrophone locations are only approximate. This data represents call detections - individual animals may make multiple calls. conducted by James Yosco (Science Applications International Corporation) This dataset is part of a larger project examining Balaenoptera acutorostrata (minke whale) vocalizations at the Pacific Missile Range Facility (PMRF). Related datasets include:

  1. Results from a prior manual detection (http://seamap.env.duke.edu/dataset/666) and manual localization (http://seamap.env.duke.edu/dataset/675) of 24 boing sources
  2. Results of automated boing detections for 14 hydrophones over 12 days in early 2006 (http://seamap.env.duke.edu/dataset/668)
  3. Results for boing associations over an exploratory 1 hr of data (ten min each from three separate days in Mar 2006 and two separate days in Apr 2007) and for 2 hrs of sample data from 12 days of data in Feb, Mar, Apr of 2006 (http://seamap.env.duke.edu/dataset/664 ).
Original data can be downloaded at http://www.creem.st-and.ac.uk/decaf/decaf-data-files under Case Study 1b: Minke whale data. 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, Balaenoptera acutorostrata Lacépède, 1804

Geographical coverage
A, North Atlantic [Marine Regions]

Temporal coverage
5 February 2006 - 18 April 2006

Taxonomic coverage
Balaenoptera acutorostrata Lacépède, 1804 [WoRMS]

Contributor
SPAWAR Systems Center Pacific, more

Related datasets
Published in:
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more
Other relations:
DECAF - PMFR Minke Whales - Multiple Sensor - Boing Associations, more
DECAF - PMFR Minke Whales - Multiple Sensor - Boing Localizations, more
DECAF - PMFR Minke Whales - Multiple Sensor - Manual Boing Detections, more

Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2012-11-23
Information last updated: 2016-06-30
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