Marine Mammals and Seabirds and Turtles: Summer sightings per unit effort of porpoises from Western English Channel Marinelife Surveys

Marinelife sightings per unit effort (SPUE) of live porpoises in the Western English Channel. Surveys recorded sightings of Phocoena phocoena. The data span from 2007 - 2011 and come from both dedicated and opportunistic surveys in the CHARM3 study area. Relative-abundance of porpoises should be viewed with survey effort layers.
 
Citation proposal
CHARM consortium. Marine Mammals and Seabirds and Turtles: Summer sightings per unit effort of porpoises from Western English Channel Marinelife Surveys. https://services.mspdata.eu:/geonetwork/srv/api/records/85e230cb-d623-400b-80ac-41a3efe25ee1

Simple

Date ( Creation )
2012-05-04T14:15:00
Identifier
CHARM3SWECRAPP
Purpose
Credit
Status
Completed

  Processor

  Custodian

  Distributor

Maintenance and update frequency
Not planned
Thèmes Sextant ( Theme )
  • /Biological Environment/Species/Fauna
Keywords ( Place )
  • World
Keywords ( Theme )
  • Marine Mammals and Seabirds and Turtles
Keywords ( Theme )
  • Marinelife Porpoise Sightings per Unit Effort
Keywords ( Theme )
  • effort associé de recherche de marsouin de Marinelife
GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Species distribution
Access constraints
Intellectual property rights
Use constraints
License
Other constraints
permission required
Use limitation
permission required
Spatial representation type
Vector
Denominator
6000000
Metadata language
English
Metadata language
French
Metadata language
English
Character set
UTF8
Topic category
  • Oceans
N
S
E
W


Supplemental Information
Reference system identifier
/ WGS84 (EPSG:4326) /
Topology level
Geometry only
Geometric object type
Point
Geometric object count
9
Distribution format
  • ( )

OnLine resource
spuephocoen_sum  

Porpoise sightings per unit effort

Protocol
FILE
Name
spuephocoen_sum
Description
Hierarchy level
Dataset

Conformance result

Date ( Creation )
2012-02-14
Explanation
Marinelife sightings per unit effort (SPUE) of live porpoises in the Western English Channel. The data were provided by Marinelife from a dedicated and opportunistic surveys on a variety of platforms over 5 years. Relative-abundance of porpoises should be viewed with survey effort layers.
Pass
false
Statement
Sightings records were contributed by: Marinelife. Data were filtered to remove obvious location errors (i.e. on land), in poor seastates (>3 Beaufort Scale), from high-speed (ferries), static (dive)vessels, or when chumming occured (fishing). The filtered dataset was then corrected for search effort used to generate survey effort rasters in 0.25 degree resolution. SPUE rasters were then converted to shapefiles.
Description
CHARM3 meta-analysis by University of Exeter
Rationale
best available data to characterise megavertebrates in region

Metadata

File identifier
85e230cb-d623-400b-80ac-41a3efe25ee1   XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2020-06-04T00:22:58
Metadata standard name
ISO 19115:2003/19139 - SEXTANT
Metadata standard version
1.0

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