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Maps of significant concentrations of corals and sponges on the east coast of Canada produced through quantitative analyses of research vessel trawl survey data, supplemented with other data sources where available. |
| summary:
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Maps of significant concentrations of corals and sponges on the east coast of Canada produced through quantitative analyses of research vessel trawl survey data, supplemented with other data sources where available. |
| extent:
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[[-79.1450151874009,41.1308722453579],[-47.7320117287582,75.6895948141494]] |
| accessInformation:
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Fisheries and Oceans Canada, Bedford Institute of Oceanography, P.O. Box 1006, Dartmouth, NS, Canada B2Y 4A2 |
| thumbnail:
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thumbnail/thumbnail.png |
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1.7976931348623157E308 |
| typeKeywords:
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["ArcGIS","ArcGIS Server","Data","Map Service","Service"] |
| description:
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<div style='text-align:Left;'><div><div><p><span>Significant Benthic Areas are defined in DFO's Ecological Risk Assessment Framework (ERAF) as "significant areas of cold-water corals and sponge dominated communities", where significance is determined "through guidance provided by DFO-lead processes based on current knowledge of such species, communities and ecosystems". Here we provide maps of the location of significant concentrations of corals and sponges on the east coast of Canada produced through quantitative analyses of research vessel trawl survey data, supplemented with other data sources where available. We have conducted those analyses following a bio-regionalization approach in order to facilitate modelling of similar species, given that many of the multispecies surveys do not record coral and sponge catch at species level resolution. The taxa analyzed are sponges (Porifera), large and small gorgonian corals (Alcyonacea), and sea pens (Pennatulacea). We applied kernel density estimation (KDE) to create a modelled biomass surface for each of those taxa, and applied an aerial expansion method to identify significant concentrations, following an approach first applied in 2010 to this region. We compared our results to those obtained previously. KDE uses only geo-referenced biomass data to identify "hot spots". The borders of the areas so identified can be refined using knowledge of null catches and species distribution models that predict species presence-absence and/or biomass, both incorporating environmental data.</span></p><p><span /></p><p><span style='font-size:14pt'>Open Data</span></p><p><a href='https://open.canada.ca:443/data/en/dataset/6af357a3-3be1-47d5-9d1f-e4f809c4c903' style='text-decoration:underline;'><span>Learn more or download this dataset from the Government of Canada's Open data portal.</span></a></p></div></div></div> |
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<div style='text-align:Left;'><div><div><p><span><span>Please refer to the Open Government Licence - Canada</span></span></p><p><a href='http://open.canada.ca/en/open-government-licence-canada' style='text-decoration:underline;'><span><span>http://open.canada.ca/en/open-government-licence-canada</span></span></a></p><p><span /></p></div></div></div> |
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| title:
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sbas_coral_sponge_2016_en |
| type:
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Map Service |
| url:
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| tags:
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["Eastern Canada Biogeographic Zones","Eastern Arctic","Hudson Bay Complex","Newfoundland and Labrador Shelves","Scotian Shelf","Gulf of St. Lawrence","Research Vessel Trawl Surveys","Sponges","Sea Pens","Large Gorgonian Corals","Small Gorgonian Corals","Alfredo","Campelen","Cosmos","Western IIA","Kernel Density Estimation","Significant Benthic Areas."] |
| culture:
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en-US |
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| name:
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sbas_coral_sponge_2016_en |
| guid:
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6FDD43C4-B33D-46F8-9FB2-C5C0B18C0B68 |
| minScale:
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0 |
| spatialReference:
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GCS_WGS_1984 |