Baltic Porpoise Sightings 01-02
International Fund for Animal Welfare

Dataset credit

International Fund for Animal Welfare

Contacts

RoleNameOrganization 
Primary contact Anna Moscrop Marine Conservation Research Ltd
Data entry Ei Fujioka Duke University

Citation

Abstract

Boat-based acoustic and visual surveys for harbor porpoises (Phocoena phocoena) were conducted during the summers of 2001 and 2002in order to investigate their distribution and relative abundance in the Baltic Sea, and to compare the results with the adjacent Kiel and Mecklenburg Bights and the Little Belt.

Purpose

Harbor porpoises are subject to year-round bycatch in gillnets and other fishing gear in these waters. This is of particular concern in the Baltic Sea where a survey carried out in 1995 indicated that the population is low and current levels of anthropogenic mortality are believed to be unsustainable.

Supplemental information

6/15/2010: The primary contact was changed from Douglas Gillespie to Anna Moscrop upon provider request.



3/28/2007: _obs_count (species count) field was blank. It is now filled with proper counts.



This dataset includes visual sightings events only.
Data for acoustic events during the survey are available in Baltic Porpoise Acoustic Surveys 01-02.
Acoustic sound files are not available in OBIS-SEAMAP.

References

Gillespie, D., P. Berggren, S. Brown, I. Kuklik, C. Lacey, T. Lewis, J. Matthews, R. Mclanaghan, A. Moscrop and N. Tregenza. 2005. Relative abundance of harbour porpoises (Phocoena phocoena). Journal of Cetacean Research and Managment. 7(1):51-57.

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.

Attributes in dataset provided

Attribute (table column)Description
dataset
lineno
incidentalWhether the sighting is incidental or not.Incidental sightings were recorded in 2001 only.
index
datetime
sightingno
latitudeLatitude of observation
longitudeLongitude of observation
gpsindex
gpstime
speciesSpecies code
tsnITIS taxonomic serial number
scientificSpecies scientific name
platform
distance
bearing
totalcount
calves
block
notes
heading
headingtyp
speed
speedtype
gpserror
datastatus
acoustic
aframeobs
mastobs
seastate
excluded
oidUnique ID number (generated by SEAMAP)
OBIS-SEAMAP ID344
Seabirds0
Marine mammals55
Sea turtles0
Rays and sharks0
Other species0
Non spatial0
Non species0
Total55
Date, Begin2001-08-10
Date, End2002-08-11
Temporal prec.111111
Latitude53.37 - 55.34
Longitude4.93 - 14.53
Coord. prec.6 decimal digits
PlatformBoat
Data typeAnimal sighting
EffortYES (ID: 345)
Traveled (km)0
Effort hours0
Registered2006-12-05
Updated2011-11-11
StatusPublished
Sharing policy CC-BY-NC (Minimum)
Also availalbe from iOBIS
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics
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