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SCANS I cetacean sightings 1994
Citatie
Sea Mammal Research Unit (SMRU) SMRU Small Cetacean Abundance in the North Sea (SCANS), 1994. In: OBIS-SEAMAP . OBIS-SEAMAP, http://seamap.env.duke.edu/, 2004-05-07 10:26:49.566991-04, vector digital data.

Toegang tot data
Gearchiveerde data

Beschrijving
Point file data on all sighting events and associated parameters and data from the survey. meer

The Small Cetacean Abundance in the North Sea (SCANS) project was initiated in 1993. Dedicated line transect shipboard surveys were conducted between 27 June and 26 July 1994. Transects covered 20,000km2 in an area of 890,000km2. The survey area included the region specified in the Agreement on Small Cetaceans Of the Baltic And North Seas (ASCOBANS) (excluding most of the Baltic Sea proper) and the Celtic Sea. The shipboard methodology involved simultaneous survey from two independent observation platforms, one of which searched farther ahead of the vessel than the other. There were two observation platforms on each of the nine vessels participating in the SCANS project. Three species dominate the dataset; the harbour porpoise (Phocoena phocoena), white-beaked dolphin (Lagenorhynchus albirostris) and minke whale (Balaenoptera acutorostrata). The dataset is a point file containing information on all sighting events from each platform on each vessel during survey effort. The effort file contains the start and end positions for each leg of survey effort for each vessel and associated parameters. The data have been extracted from the Joint Cetacean Database. The status of small cetaceans, particularly the harbour porpoise, in the North Sea and adjacent waters was of considerable concern due to substantial incidental bycatch in fishing operations, declines in the number of stranding records and incidental sightings in coastal waters and from the possible risk of contaminants and pollution. The objective of SCANS was to provide essential information for conservation, management and future monitoring of small cetaceans by i) identifying concentrations of P. phocoena and other small cetaceans and ii) generating precise and unbiased abundance estimates.

Scope
Thema's:
Biologie > Zoogdieren
Kernwoorden:
Marien, Zeezoogdieren, ANE, Baltic, ANE, Celtic Sea, ANE, Noordzee, Cetacea

Geografische spreiding
ANE, Baltic [Marine Regions]
ANE, Celtic Sea [Marine Regions]
ANE, Noordzee [Marine Regions]

Spreiding in de tijd
27 Juni 1994 - 25 Juli 1994

Taxonomische spreiding
Cetacea [WoRMS]

Bijdrage door
University of St Andrews; Sea Mammal Research Unit (SMRU), meerdata eigenaar

Gerelateerde datasets
Gepubliceerd in:
EurOBIS: European Ocean Biogeographic Information System, meer
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, meer
Andere relatie:
SCANS II: Small Cetaceans in the European Atlantic and North Sea (SCANS II) - 2005, meer

Publicatie
Beschrijft deze dataset
Hammond, P.S. et al. (2002). Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters. J. Appl. Ecol. 39: 361-376, meer

Dataset status: Afgelopen
Data type: Data
Data oorsprong: Onderzoek: veldonderzoek
Metadatarecord aangemaakt: 2009-06-09
Informatie laatst gewijzigd: 2017-10-19
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