SCANS I cetacean sightings 1994
Sea Mammal Research Unit, University of St. Andrews

Dataset credit

Sea Mammal Research Unit, University of St. Andrews

Contacts

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

Citation

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

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 noted 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
oidUnique ID number (generated by OBIS-SEAMAP)
dataset_originOrigin of the data; Always "SCANS I"
iddefinition not provided
vesdefinition not provided
vessidVessel ID
sighting_noSighting No.
obs_dateDate of observation
obs_timeTime of the observation (local time zone)
latitudeLatitude in decimal degrees
longitudeLongitude in decimal degrees
platformdefinition not provided
hour_endEnd time (hour) of sighting
minute_endEnd time (minute) of sighting
second_endEnd time (second) of sighting
radial_distRadial distance
reticleReticle
angleAngle
observerObserver ID
cue_typeCue type
sp_obsSpecies name recorded
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
behaviourBehavior
directionDirection
obs_countBest estimate of number of animals
low_numberLow estimate of number of animals
high_numberHigh estimate of number of animals
calvesNumber of calves
effort_onIndicate if the sighting was made on effort (1) or not.
legdefinition not provided
problem_datadefinition not provided
notesNotes
geomGeometry field added by OBIS-SEAMAP
OBIS-SEAMAP ID1183
Seabirds0
Marine mammals2,558
Sea turtles0
Rays and sharks0
Other species0
Non spatial0
Non species242
Total2,800
Date, Begin1994-06-27
Date, End1994-07-25
Temporal prec.111111
Latitude48.33 - 61.93
Longitude-11.39 - 12.52
Coord. prec.6 decimal digits
PlatformBoat
Data typeAnimal sighting
EffortYES (ID: 1184)
Traveled (km)19,774
Effort hours1,059
Registered2014-07-02
Updated2015-10-16
StatusPublished
Sharing policy CC-BY-NC (Minimum)
Also availalbe from iOBIS
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1