• Arctic SDI catalogue
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Diversity, Richness, and Biomass Hotspots

This geodatabase includes hotspot maps of 1) nearshore habitat richness, 2) diversity (fish and invertebrates), and 3) biomass (using catch per unit effort of fish and invertebrates), as well as two layers showing the spatial extent of the diversity and biomass hotspot analyses.

Full details and methods can be found in the Rubidge et al. 2018 CSAS Research Document 2018/053 available here or at https://waves-vagues.dfo-mpo.gc.ca/Library/40759842.pdf. These data were reviewed as part of a Canadian Science Advisory Secretariat (CSAS) regional peer review process on Nov 1-2, 2017.

Habitat Richness Hotspots:

Because there are no systematic surveys of nearshore species that span the entire coastline of Northern Shelf Bioregion, the nearshore habitat richness hotspots were developed as a proxy for species diversity in nearshore areas. Habitat richness was calculated from eight habitat features: eelgrass, surfgrass, canopy-forming kelp, estuaries, areas of high rugosity, and hard, mixed, and soft substrate. The number of features within 1 km x 1 km planning units was counted, and hotspots were identified using the Getis-Ord G* tool in ArcGIS. Planning units with Gi_Bin values of 3 (99% confidence) were classified as habitat richness hotspots.

Diversity and Biomass Hotspots:

Hotspots of fish and invertebrate diversity and biomass were developed as proxies for spatial patterns of productivity in the Northern Shelf Bioregion. Diversity (Shannon diversity) and biomass (kg/hour or count/hook/hour) were calculated from DFO synoptic trawl and outside hard-bottom longline (HBLL) survey catch records. The outside HBLL survey was previously referred to as Pacific Halibut Management Area (PHMA) survey. The synoptic trawl and HBLL surveys have complementary spatial coverage, with the HBLL surveys occurring in more coastal areas (20–260 m) and the synoptic trawl surveys occurring on deeper shelf areas (50–1300 m). Hotspots were identified using the Getis-Ord G* tool in ArcGIS for five separate analyses: fish biomass (trawl), fish diversity (trawl), fish diversity (longline), invertebrate biomass (trawl), and invertebrate diversity (trawl). Using the Minimum Bounding Geometry Tool, convex hull polygons were drawn around groups of hotspot points (Gi_Bin values of 1, 2, or 3; confidence ≥90%) containing 10 or more points. The resulting polygons were then buffered by 1 km and manually edited where needed to exclude any large areas of the polygons that did not include hotspot points.

Simple

Date ( RI_367 )
2021-03-30
Date ( RI_366 )
2017-11-01
RI_415
  Government of Canada;Fisheries and Oceans Canada;Science/MSEA Section - Emily Rubidge ( Research Scientist )
Institute of Ocean Sciences 9860 West Saanich Road P.O. Box 6000 , Sidney , British Columbia , V8L 4B2 , Canada
604-822-8419
https://www.gis-hub.ca/dataset/diversity-richness-biomass-hotspots
Credit
Rubidge E. Jeffery, S., Gregr, E., Gale, K.S.P., and Frid, A. 2020. Assessment of nearshore features in the Northern Shelf Bioregion against criteria for determining Ecologically and Biologically Significant Areas (EBSAs). DFO Can. Sci. Advis. Sec. Res. Doc. 2020/023: vii + 63 p.
Status
completed; complété RI_593
Maintenance and update frequency
notPlanned; nonPlanifié RI_542
Keywords ( RI_528 )
  • EBSA
  • Ecologically and biologically significant areas (EBSA)
  • Northern Shelf Bioregion
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Oceans
  • Biological diversity
  • Environment
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
  • Environment
  • Oceans
Begin date
2003-07-01
End date
2016-08-01
N
S
E
W
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Reference system identifier
http://www.epsg-registry.org / EPSG:3005 /
Distribution format
  • FGDB/GDB ( Unknown )

  • SHP ( Unknown )

  • PDF ( Unknown )

  • HTML ( Unknown )

RI_408
  Government of Canada;Fisheries and Oceans Canada;Science/MSEA Section - Katie Gale ( Biologist )
Institute of Ocean Sciences 9860 West Saanich Road P.O. Box 6000 , Sidney , British Columbia , V8L 4B2 , Canada
250-363-6411
https://www.gis-hub.ca/dataset/diversity-richness-biomass-hotspots
OnLine resource
Diversity, Richness, and Biomass Hotspots_geodatabase ( HTTPS )

Dataset;FGDB/GDB;eng,fra

OnLine resource
Data Dictionary ( HTTPS )

Supporting Document;HTML;eng,fra

OnLine resource
References ( HTTPS )

Supporting Document;HTML;eng,fra

OnLine resource
CSAS Research Document 2018/053 ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
CSAS Science Advisory Report 2018/040 ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
CSAS Research Document 2018/053 ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
CSAS Science Advisory Report 2018/040 ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Diversity, Richness, and Biomass Hotspots_shapefiles ( HTTPS )

Dataset;SHP;eng,fra

OnLine resource
Diversity, Richness, and Biomass Hotspots GIS Hub metadata ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Diversity, Richness, and Biomass Hotspots GIS Hub metadata ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Diversity, Richness, and Biomass Hotspots ( ESRI REST: Map Server )

Web Service;ESRI REST;eng

OnLine resource
Diversity, Richness, and Biomass Hotspots ( ESRI REST: Map Server )

Web Service;ESRI REST;fra

File identifier
1030ed22-2fa3-42f5-b26f-b27a7b167159 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-02-06T12:30:29.911Z
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_408
  Government of Canada;Fisheries and Oceans Canada;Science/MSEA Section - Katie Gale ( Biologist )
Institute of Ocean Sciences 9860 West Saanich Road P.O. Box 6000 , Sidney , British Columbia , V8L 4B2 , Canada
250-363-6411
https://www.gis-hub.ca/dataset/diversity-richness-biomass-hotspots
 
 

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Spatial extent

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