SCANS I cetacean sightings 1994

Sea Mammal Research Unit, University of St. Andrews

Dataset credit

Sea Mammal Research Unit, University of St. Andrews

Contacts

Role	Name	Organization
Primary contact	Claire Lacey	Sea Mammal Research Unit, University of St. Andrews
Data entry	Ei Fujioka	Duke University

Citation

Lacey, C. 2015. SCANS I cetacean sightings 1994. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1183) on yyyy-mm-dd.

Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.

Abstract

Shipboard and aerial line transect surveys were conducted of the North Sea and adhacent waters to provide accurate and avundance estimates of small cetaceans. Known as the SCANS survey, it was conducted in summer 1994. Shipboard transects covered 20,000 km and aerial transects covered 7000km. Harbour porpoise (Phocoena phocoena), white-beaked dolphin (Lagenorhynchus albirostris) and minke whale (Balaenoptera acutorostrata) dominated the data.

Purpose

N/A

Supplemental information

N/A

References

Hammond, P. S., et al. 2002. Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters. Journal of Applied Ecology. 39.2: 361-376.

Attributes

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)
dataset_origin	Origin of the data; Always "SCANS I"
id	definition not provided
ves	definition not provided
vessid	Vessel ID
sighting_no	Sighting No.
obs_date	Date of observation
obs_time	Time of the observation (local time zone)
latitude	Latitude in decimal degrees
longitude	Longitude in decimal degrees
platform	definition not provided
hour_end	End time (hour) of sighting
minute_end	End time (minute) of sighting
second_end	End time (second) of sighting
radial_dist	Radial distance
reticle	Reticle
angle	Angle
observer	Observer ID
cue_type	Cue type
sp_obs	Species name recorded
sp_tsn	Taxonomic Serial Number added by OBIS-SEAMAP
behaviour	Behavior
direction	Direction
obs_count	Best estimate of number of animals
low_number	Low estimate of number of animals
high_number	High estimate of number of animals
calves	Number of calves
effort_on	Indicate if the sighting was made on effort (1) or not.
leg	definition not provided
problem_data	definition not provided
notes	Notes
geom	Geometry field added by OBIS-SEAMAP

OBIS-SEAMAP ID	1183
Seabirds	0
Marine mammals	2,558
Sea turtles	0
Rays and sharks	0
Other species	0
Non spatial	0
Non species	242
Total	2,800
Date, Begin	1994-06-27
Date, End	1994-07-25
Temporal prec.	111111
Latitude	48.33 - 61.93
Longitude	-11.39 - 12.52
Coord. prec.	6 decimal digits
Platform	Boat
Data type	Animal sighting
Effort	YES (ID: 1184)
Traveled (km)	19,774
Effort hours	1,059
Contr. through
Registered	2014-07-02
Updated	2015-10-16
Status	Published
Sharing policy	CC-BY-NC (Minimum)
Shared with	OBIS GBIF (via DOI)
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See metadata in FGDC XML
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