• Arctic SDI catalogue
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Sea pens significant concentration areas in the Gulf of St. Lawrence

Identification of significant concentrations of sea pens in the Gulf of St. Lawrence biogeographic unit using Kernel density estimation (KDE).

This method was applied to create a modelled biomass surface for each taxa and an aerial expansion method was permitted to identify significant concentrations. Only geo-referenced biomass data have been used to identify the “hot spots”. The borders of the areas were refined using knowledge of null catches and species distribution models. Predictive models were produced using a random forest machine-learning technique. For more details, please refer to this report:

Kenchington, E., L. Beazley, C. Lirette, F.J. Murillo, J. Guijarro, V. Wareham, K. Gilkinson, M. Koen Alonso, H. Benoît, H. Bourdages, B. Sainte-Marie, M. Treble, and T. Siferd. 2016. Delineation of Coral and Sponge Significant Benthic Areas in Eastern Canada Using Kernel Density Analyses and Species Distribution Models. DFO Can. Sci. Advis. Sec. Res. Doc. 2016/093. vi + 178 p.

http://waves-vagues.dfo-mpo.gc.ca/Library/40577806.pdf

The present layer only contains the analysis results for sea pens.

Purpose:

As part of the Canada's commitment to the identification and protection of sensitive benthic marine ecosystems, maps of the location of significant concentrations of corals and sponges on the east coast of Canada were produced through quantitative analyses of research vessel trawl survey data, supplemented with other data sources where available. The taxa analyzed are sponges (Porifera), large and small gorgonian corals (Alcyonacea), and sea pens (Pennatulacea). However, only the sponges (Porifera) and sea pens (Pennatulacea) have been considered in the analysis concerning the Gulf of St. Lawrence biogeographic unit.

Simple

Date ( RI_366 )
2016
Date ( RI_367 )
2016
RI_414
  Government of Canada; Fisheries and Oceans Canada - Olivier Parent ( Geomatics analyst )
850, route de la Mer, P.O. Box 1000 , Mont-Joli , Quebec , G5H 3Z4 , Canada
Status
completed; complété RI_593
Maintenance and update frequency
asNeeded; auBesoin RI_540
Keywords ( RI_530 )
  • Habitat
  • Pennatulacea
  • Distribution
  • Sea pens
  • Benthic Habitat
Keywords ( RI_525 )
  • Gulf of St. Lawrence
  • Laurentian Channel
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Earth sciences
Classification
unclassified; nonClassifié RI_484
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
vector; vecteur RI_635
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Topic category
  • Biota
  • Environment
  • Oceans
  • Geoscientific information
Begin date
2003
End date
2015
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Reference system identifier
https://epsg.io / EPSG:26920 / 7.4.1
Distribution format
  • ESRI REST ( 10.3.1 )

RI_414
  Government of Canada; Fisheries and Oceans Canada - Olivier Parent ( Geomatics analyst )
850, route de la Mer, P.O. Box 1000 , Mont-Joli , Quebec , G5H 3Z4 , Canada
OnLine resource
Sea pens significant areas ( HTTPS )

Dataset;SHP;eng,fra

OnLine resource
Data dictionary ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Sea pens significant areas ( ESRI REST: Map Service )

Web Service;ESRI REST;eng

OnLine resource
Sea pens significant areas ( ESRI REST: Map Service )

Web Service;ESRI REST;fra

File identifier
87ae08e8-5fc2-476a-b3f5-c8f0ea4be9ef XML
Metadata language
fra; CAN
Character set
utf8; utf8 RI_458
Parent identifier
Significant parameters for different species with status under the Species at Risk Act (SARA) 4c7880ac-cb01-4e12-8305-2ae8eb675390
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-02-06T00:39:25.308Z
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_420
  Government of Canada; Fisheries and Oceans Canada - Section Gestion de données - Direction des avis, information et soutien scientifiques ( )
850, route de la Mer, P.O. Box 1000 , Mont-Joli , Quebec , G5H 3Z4 ,
 
 

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