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TitleBay-scale habitat mapping of American lobster (Homarus americanus)
DownloadDownload (whole publication)
AuthorMcKee, A; Grant, J
SourceProgram and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada; by Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; Geological Survey of Canada, Open File 8295, 2017 p. 83, (Open Access)
LinksGeoHab 2017
PublisherNatural Resources Canada
Meeting2017 GeoHab: Marine Geological and Biological Habitat Mapping; Dartmouth, NS; CA; May 1-4, 2017
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; (2017). Program and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada, Geological Survey of Canada, Open File 8295
File formatpdf
Subjectsmarine geology; surficial geology/geomorphology; environmental geology; geophysics; mapping techniques; oceanography; marine environments; coastal studies; conservation; marine organisms; marine ecology; resource management; biological communities; environmental studies; ecosystems; benthos; planning; geophysical interpretations; acoustic surveys, marine; sonar surveys; photography; geological mapping; geological mapping techniques; biology; habitat mapping; habitat conservation; habitat management; marine spatial planning; geographic information systems; fisheries; fisheries management; aquaculture
ProgramOcean Management Geoscience, Offshore Geoscience
Released2017 09 26
AbstractBay-scale habitat maps for benthic organisms, especially those of economically important species, are important for the comprehensive development of Marine Spatial Planning (MSP) initiatives. However, few such maps of that scale exist for the American lobster (Homarus americanus) in Canada's Maritime provinces. There are several coastal activities considered by MSP which occur at scales of less than 1 km (e.g. aquaculture, etc.), but which have limited spatial placement options because of the broadly binned or patchy lobster habitat data available.
Therefore, the objective of this project is to develop a standard method of bay-scale lobster habitat mapping specifically for the purposes of adding scientific GIS layers to the MSP process of finfish aquaculture lease placement. Two bays in Nova Scotia and New Brunswick have been surveyed and mapped using acoustic data (backscatter from a single-beam echosounding system), ground-truth video, and various forms of lobster presence data. Through different procedures, the acoustic data have been split into substrate category bins and interpolated between tracks, then compared to the ground-truth video to create error matrices and provide estimates of accuracy. The accuracy of the maps created through these differing procedures has been evaluated and the early results of this work will discussed.