DECAF - AUTEC Beaked Whales - Multiple Sensors - DTag
Density Estimation of Cetaceans from passive Acoustic Fixed sensors (DECAF)

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This archive contains data on echolocation clicks of Blainville's beaked whale (Mesoplodon densirostris) recorded at AUTEC during a 6-day period in spring 2005. The data were used in estimating M. densirostris density as documented in the paper Marques et al. (2009). There are data files containing click counts per minute per hydrophone, files containing numbers of false positive detections from a manual analysis, and files giving information about georeferenced tracks of tagged whales and associated vocalization timings.

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Each record represents the georeferenced echolocation click of a single tagged whale. Only regular clicks from the tagged whale are included. Time zone is GMT. Additional attributes include pitch, roll, and heading of the tagged whale and data on presence or absence of detections of each click on nearby seafloor hydrophones.
Data on the presence or absence of DTAG clicks on nearby seafloor hydrophones are available at http://seamap.env.duke.edu/dataset/722.
Automated and manually verified click detections from 82 seafloor hydrophones in a related dataset are available at http://seamap.env.duke.edu/dataset/677.
Original data can be downloaded at http://www.creem.st-and.ac.uk/decaf/decaf-data-files under Case Study 3: Beaked whale data

Marques, T.A., L. Thomas, J. Ward, N. DiMarzio, P. L. Tyack. 2009. Estimating cetacean population density using fixed passive acoustic sensors: An example with Blainville’s beaked whales. Journal of the Acoustical Society of America. 125(4): 1982-1994

Overview

Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downlodable online. Other attributes may be obtained upon provider's permission unless otherwise noteded below.

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes in dataset provided

Attribute (table column)	Description
oid	OBIS-SEAMAP ID
series	DTag ID (SpeciesYear_Julianday)
obs_date	Click Observation Date
obs_time	Click Observation Time (GMT)
obs_count	Number of clicks
sp_tsn	ITIS tsn code
sp_obs	Species ID
dtag_click_index	DTag click index for association with seafloor array detections (dataset 720)
dive	Deep dive number
year	Year
julian_day	Julian day
secondsn2year	Click emission time from DTag in seconds since the beginning of the year (GMT)
x	Georeferenced x location (m) of whale (+ east)
y	Georeferenced y location (m) of whale (+ north)
z	Depth of whale (m) (+ up) from DTag pressure sensor
heading	Tag Heading (radians –pi to pi)
pitch	Tag Pitch (radians –pi/2 to pi/2)
roll	Tag Roll (radians –pi to pi)
latitude	Georeferenced Latitude of Whale
longitude	Georeferenced Longitude of Whale
depth	Depth of whale
phoneanumber	Phone A number
phonea_pa	Click Detected and Associated on Hydrophone A (1=yes, 0= no)
phonebnumber	Phone B number
phoneb_pa	Click Detected and Associated on Hydrophone B (1=yes, 0= no)
phonecnumber	Phone C number
phonec_pa	Click Detected and Associated on Hydrophone C (1=yes, 0= no)
phonednumber	Phone D number
phoned_pa	Click Detected and Associated on Hydrophone D (1=yes, 0= no)
phoneenumber	Phone E number
phonee_pa	Click Detected and Associated on Hydrophone E (1=yes, 0= no)
phonefnumber	Phone F number
phonef_pa	Click Detected and Associated on Hydrophone F (1=yes, 0= no)
phonegnumber	Phone G number
phoneg_pa	Click Detected and Associated on Hydrophone G (1=yes, 0= no)
phonehnumber	Phone H number
phoneh_pa	Click Detected and Associated on Hydrophone H (1=yes, 0= no)
phoneinumber	Phone I number
phonei_pa	Click Detected and Associated on Hydrophone I (1=yes, 0= no)
phonejnumber	Phone J number
phonej_pa	Click Detected and Associated on Hydrophone J (1=yes, 0= no)
phoneknumber	Phone K number
phonek_pa	Click Detected and Associated on Hydrophone K (1=yes, 0= no)
phonelnumber	Phone L number
phonel_pa	Click Detected and Associated on Hydrophone L (1=yes, 0= no)
phonemnumber	Phone M number
phonem_pa	Click Detected and Associated on Hydrophone M (1=yes, 0= no)
phonennumber	Phone N number
phonen_pa	Click Detected and Associated on Hydrophone N (1=yes, 0= no)
phoneonumber	Phone O number
phoneo_pa	Click Detected and Associated on Hydrophone O (1=yes, 0= no)