Acoustic detections from R/V Song of the Whale during the winter 2019 MAPS survey (NMFS permit 14809)

Oliver Boisseau, Marine Conservation Research International

The dataset contains sperm whale acoustic detections made during the MAPS winter cruise in Jan/Feb 2019 (NMFS permit 14809). Each datapoint represents an acoustic detection of an individual sperm whale.

The MAPS (Marine Mammal Passive Acoustics and Spatial Ecology) cruises form part of a BOEM project to describe the distribution and behaviour of deep-diving cetaceans in the offshore waters of North Carolina (NMFS permit 14809). MAPS is a cooperative agreement between the Bureau of Ocean Energy Management and the University of North Carolina Wilmington in partnership with Duke University.

Visual sightings made in the same survey and survey tracklines are available at http://seamap.env.duke.edu/dataset/1999

Overview

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

Attributes in dataset

Attribute (table column)	Description
oid	Unique ID number (generated by OBIS-SEAMAP)
order_	Record order in the original data
cruise	Cruise name
transect	Transect on / off
species	Species name
sp_tsn	Taxonomic Serial Number added by OBIS-SEAMAP
obs_count	Number of animals (always 1)
start_utc	Start date/time of detections
end_utc	End date/time of detections
event	Event
no_clicks	Number of clicks detected
latitude	Latitude in decimal degrees (WGS84)
longitude	Longitude in decimal degrees (WGS84)
effort	Effort
block	Block
transectid	Transect ID
vessel_hdg	Vessel heading in degrees
vessel_spd	Vessel speed
vessel_rev	definition not provided
wind_spd_kn	Wind speed in knots
wind_dir	Wind direction
sst_c	SST in Celsius
sea_state	Sea state
wave_m	Wave height in meters
swell_m	Swell in meters
weather	Weather
cloud_cover	Cloud cover
visibility	Visibility
pressure	Pressure
geom	Geometry field added by OBIS-SEAMAP